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Pan F, Yang Q, Liang Y, Yu X, Hu P, Zhang W, Pang Y. Lithology and elevated temperature impact phoD-harboring bacteria on soil available P enhancing in subtropical forests. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174815. [PMID: 39019286 DOI: 10.1016/j.scitotenv.2024.174815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/13/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
Plants are generally limited by soil phosphorus (P) deficiency in forest ecosystems. Soil available P is influenced by lithology, temperature, and soil microbes. However, the interactive effects of these factors on soil P availability in subtropical forests remain unclear. To assess their impacts, we measured soil inorganic and available P fractions and the diversity, composition, and co-occurrence network of phoD-harboring bacteria in two contrasting forest soils (lithosols in karst forests and ferralsols in non-karst forests) in the subtropical regions of southwestern China across six temperature gradients. The present results showed that the complexities in composition and network and the diversity indices of phoD-harboring bacteria were higher in the karst forest soils than those in the non-karst forest soils, with marked differences in composition. In both types of forest soils, the complexities of composition and networks and the diversity indices were higher in the high-temperature regions (mean annual temperature (MAT) > 16 °C) compared to the low-temperature regions (MAT <16 °C). Soil total inorganic and available P contents were lower in the karst forest soils compared to the non-karst forest soils. Soil total available P contents were lower in the high temperature regions than those in the low temperature regions in both forest soils, whereas soil total inorganic P contents were contrary. Variance partitioning analysis showed that soil inorganic and available P fractions were predominantly explained by lithology and its interaction with soil microbes and climate. The present findings demonstrate that soil P availability in subtropical forests of southwestern China is influenced by lithology and temperature, which regulate the diversity, composition, and network connectivity of phoD-harboring bacteria. Furthermore, this study highlights the significance of controlling the composition of phoD-harboring bacteria for mitigating plant P deficiency in karst ecosystems.
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Affiliation(s)
- Fujing Pan
- College of Environmental and Engineering, Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541006, Guangxi, China; Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin 541006, Guangxi, China
| | - Qian Yang
- College of Environmental and Engineering, Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541006, Guangxi, China; Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin 541006, Guangxi, China
| | - Yueming Liang
- Karst Dynamics Laboratory, Ministry of natural Resources, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, Guangxi, China.
| | - Xuan Yu
- College of Environmental and Engineering, Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541006, Guangxi, China; Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin 541006, Guangxi, China
| | - Peilei Hu
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, Hunan, China; Huanjiang Agriculture Ecosystem Observation and Research Station of Guangxi, Guangxi Key Laboratory of Karst Ecological Process and Services, Huanjiang Observation and Research of karst Ecosystems, Chinese Academy of Sciences, Huanjiang 547100, Guangxi, China
| | - Wei Zhang
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, Hunan, China; Huanjiang Agriculture Ecosystem Observation and Research Station of Guangxi, Guangxi Key Laboratory of Karst Ecological Process and Services, Huanjiang Observation and Research of karst Ecosystems, Chinese Academy of Sciences, Huanjiang 547100, Guangxi, China.
| | - Yuelan Pang
- Guangxi Field Scientific Observation and Research Station for Tea Resources, Institute of Tea Science Research, Guangxi Zhuang Autonomous Region, Guilin 541000, Guangxi, China
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Teressa D, Kibret K, Dechasa N, Wogi L. Soil properties and nutrient uptake of maize ( Zea mays) as influenced by mixed manure and blended inorganic fertilizer in Haramaya district, eastern Ethiopia. Heliyon 2024; 10:e35784. [PMID: 39220944 PMCID: PMC11365320 DOI: 10.1016/j.heliyon.2024.e35784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 08/01/2024] [Accepted: 08/02/2024] [Indexed: 09/04/2024] Open
Abstract
The deteriorating state of soil fertility and low agricultural productivity in Ethiopia can be traced to the lack of equivalent consideration given to the soil's biological, chemical, and physical properties. A pot experiment was conducted to investigate the effect of mixed manure and blended nitrogen, phosphorus, sulfur and boron (NPSB) fertilizer on phosphorus adsorption, and other properties of Vertisols, nutrient uptake, and growth performance of maize. The study findings indicate that the combined application of mixed manure and blended NPSB significantly reduced soil pH from 7.87 to 7.68, phosphorus adsorption efficiency from 93 to 88.5 %, and Freundlich adsorption capacity from 194 to 100.75 mg kg-1 , intensity from 1.96 to 1.27 compared to control. However, combined application of these two treatments significantly increased the organic carbon from 0.81 to 1.64 %, total nitrogen from 0.04 to 0.13 %, and available phosphorus from 6.96 to 73.82 g kg-1. The study further revealed that mixed manure and blended NPSB resulted in significantly (p ≤ 0.05) higher contents of nitrogen and phosphorus in the maize leaves as well as their uptake compared to their sole application and control. The highest values of these parameters were observed in plots treated with a combined application of 15 t ha-1 mixed manure with each rate of 100 and 150 kg ha-1 blended NPSB. Additionally, the maize plant height (p ≤ 0.05) and above-ground biomass (p ≤ 0.01) also exhibited significant increase. Compared to the control and full dose of NPSB, all the treatments that received a combined application of 15 t ha-1 mixed manure with blended NPSB ranging from 50 to 150 kg ha-1 resulted in significantly higher above-ground biomass of maize. The results suggest that the combined use of mixed manure and blended NPSB could be a practical and effective approach to improve soil properties and maize above-ground biomass yield.
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Affiliation(s)
- Dejene Teressa
- School of Natural Resources Management and Environmental Sciences, Haramaya University, Ethiopia
| | - Kibebew Kibret
- School of Natural Resources Management and Environmental Sciences, Haramaya University, Ethiopia
| | | | - Lemma Wogi
- School of Natural Resources Management and Environmental Sciences, Haramaya University, Ethiopia
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Jiang Y, Guo M, Shao Y, Du Y, Wang J, Huang Z, Li J, Wang Y, Liu G. Molecular characterization on the fractionation of organic phosphorus induced by iron oxide adsorption using ESI-FT-ICR MS. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 284:116910. [PMID: 39191134 DOI: 10.1016/j.ecoenv.2024.116910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 07/31/2024] [Accepted: 08/19/2024] [Indexed: 08/29/2024]
Abstract
The interaction between organic phosphorus (OP) and iron oxide significantly influences the phosphorus cycle in the natural environment. In shallow lakes, intense oxidation-reduction fluctuations constantly alter the existing form of iron oxides, but little is known about their impact on the adsorption and fractionation of OP molecules. In this study, electrospray ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry (ESI-FT-ICR MS) was used to investigate the fractionation of OP from alkali-extracted sediment induced by crystalline goethite and amorphous ferrihydrite adsorption at a molecular scale. The results showed that ferrihydrite and goethite both exhibited high OP adsorption, and the adsorption amount decreased as the pH increased. The adsorption kinetics matched the pseudo-second-order equation. The ESI-FT-ICR MS analysis showed that 91 P-containing formulas were detected in the alkaline-extracted sediment solution. Ferrihydrite and goethite adsorbed 51 and 24 P-containing formulas, respectively, with adsorption rates of 56.0 % and 26.4 %. Ferrihydrite could adsorb more OP compounds than goethite, but no obvious molecular species selectivity was observed during the adsorption. The P-containing compounds, including unsaturated hydrocarbons-, lignin/carboxyl-rich alicyclic molecule (CRAM)-, tannin-, and carbohydrate-like molecular compounds, were more suitable for iron oxide adsorption. The double bond equivalence (DBE) is a valuable parameter that indicates OP fractionation during adsorption, and P-containing compounds with lower DBE values such as lipid- and protein-like molecular were prone to remain in the solution after adsorption. These research results provide insights into the biogeochemical cycling process of P in the natural environment.
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Affiliation(s)
- Yongcan Jiang
- PowerChina Huadong Engineering Corporation Ltd., Hangzhou, Zhejiang Province 311122, China; Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, HangZhou, Zhejiang Province 310058, China.
| | - Minli Guo
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Yinlong Shao
- PowerChina Huadong Engineering Corporation Ltd., Hangzhou, Zhejiang Province 311122, China
| | - Yunling Du
- PowerChina Huadong Engineering Corporation Ltd., Hangzhou, Zhejiang Province 311122, China
| | - Jie Wang
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Zekai Huang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Jianfeng Li
- PowerChina Huadong Engineering Corporation Ltd., Hangzhou, Zhejiang Province 311122, China
| | - Yi Wang
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Guanglong Liu
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.
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4
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Basinski JJ, Bone SE, Klein AR, Thongsomboon W, Mitchell V, Shukle JT, Druschel GK, Thompson A, Aristilde L. Unraveling iron oxides as abiotic catalysts of organic phosphorus recycling in soil and sediment matrices. Nat Commun 2024; 15:5930. [PMID: 39025840 PMCID: PMC11258345 DOI: 10.1038/s41467-024-47931-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 04/16/2024] [Indexed: 07/20/2024] Open
Abstract
In biogeochemical phosphorus cycling, iron oxide minerals are acknowledged as strong adsorbents of inorganic and organic phosphorus. Dephosphorylation of organic phosphorus is attributed only to biological processes, but iron oxides could also catalyze this reaction. Evidence of this abiotic catalysis has relied on monitoring products in solution, thereby ignoring iron oxides as both catalysts and adsorbents. Here we apply high-resolution mass spectrometry and X-ray absorption spectroscopy to characterize dissolved and particulate phosphorus species, respectively. In soil and sediment samples reacted with ribonucleotides, we uncover the abiotic production of particulate inorganic phosphate associated specifically with iron oxides. Reactions of various organic phosphorus compounds with the different minerals identified in the environmental samples reveal up to ten-fold greater catalytic reactivities with iron oxides than with silicate and aluminosilicate minerals. Importantly, accounting for inorganic phosphate both in solution and mineral-bound, the dephosphorylarion rates of iron oxides were within reported enzymatic rates in soils. Our findings thus imply a missing abiotic axiom for organic phosphorus mineralization in phosphorus cycling.
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Affiliation(s)
- Jade J Basinski
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, USA
| | - Sharon E Bone
- Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Annaleise R Klein
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, USA
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation, Clayton, VIC, Australia
| | - Wiriya Thongsomboon
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, USA
- Department of Chemistry, Mahasarakham University, Mahasarakham, Thailand
| | - Valerie Mitchell
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation, Clayton, VIC, Australia
| | - John T Shukle
- Department of Earth Sciences, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
- ZevRoss Spatial Analysis, Ithaca, NY, USA
| | - Gregory K Druschel
- Department of Earth Sciences, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
| | - Aaron Thompson
- Department of Crop and Soil Sciences, University of Georgia, Athens, GA, USA
| | - Ludmilla Aristilde
- Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL, USA.
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Gao Y, Tariq A, Zeng F, Sardans J, Graciano C, Li X, Wang W, Peñuelas J. Soil microbial functional profiles of P-cycling reveal drought-induced constraints on P-transformation in a hyper-arid desert ecosystem. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 925:171767. [PMID: 38499102 DOI: 10.1016/j.scitotenv.2024.171767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
Soil water conditions are known to influence soil nutrient availability, but the specific impact of different conditions on soil phosphorus (P) availability through the modulation of P-cycling functional microbial communities in hyper-arid desert ecosystems remains largely unexplored. To address this knowledge gap, we conducted a 3-year pot experiment using a typical desert plant species (Alhagi sparsifolia Shap.) subjected to two water supply levels (25 %-35 % and 65 %-75 % of maximum field capacity, MFC) and four P-supply levels (0, 1, 3, and 5 g P m-2 y-1). Our investigation focused on the soil Hedley-P pool and the four major microbial groups involved in the critical phases of soil microbial P-cycling. The results revealed that the drought (25 %-35 % MFC) and no P-supply treatments reduced soil resin-P and NaHCO3-Pi concentrations by 87.03 % and 93.22 %, respectively, compared to the well-watered (65 %-75 % MFC) and high P-supply (5 g P m-2 y-1) treatments. However, the P-supply treatment resulted in a 12 %-22 % decrease in the soil NH4+-N concentration preferred by microbes compared to the no P-supply treatment. Moreover, the abundance of genes engaged in microbial P-cycling (e.g. gcd and phoD) increased under the drought and no P-supply treatments (p < 0.05), suggesting that increased NH4+-N accumulation under these conditions may stimulate P-solubilizing microbes, thereby promoting the microbial community's investment in resources to enhance the P-cycling potential. Furthermore, the communities of Steroidobacter cummioxidans, Mesorhizobium alhagi, Devosia geojensis, and Ensifer sojae, associated with the major P-cycling genes, were enriched in drought and no or low-P soils. Overall, the drought and no or low-P treatments stimulated microbial communities and gene abundances involved in P-cycling. However, this increase was insufficient to maintain soil P-bioavailability. These findings shed light on the responses and feedback of microbial-mediated P-cycling behaviors in desert ecosystems under three-year drought and soil P-deficiency.
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Affiliation(s)
- Yanju Gao
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China
| | - Akash Tariq
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Fanjiang Zeng
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Jordi Sardans
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Vallès, 08193 Barcelona, Catalonia, Spain
| | - Corina Graciano
- Instituto de Fisiología Vegetal, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Xiangyi Li
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weiqi Wang
- Key Laboratory of Humid Subtropical Ecological-Geographical Processes, Ministry of Education, Fujian Normal University, Fuzhou, Fujian 350117, China
| | - Josep Peñuelas
- CSIC, Global Ecology Unit, CREAF-CSIC-UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Vallès, 08193 Barcelona, Catalonia, Spain
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6
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Kaur H, Nelson KA, Singh G, Kaur G, Davis MP. Spring applied phosphorus loss with cover crops in no-till terraced field. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 355:120431. [PMID: 38457890 DOI: 10.1016/j.jenvman.2024.120431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 02/16/2024] [Accepted: 02/17/2024] [Indexed: 03/10/2024]
Abstract
Cover crops (CC) can improve phosphorus (P) cycling by reducing water related P losses and contributing to P nutrition of a rotational crop. This is particularly important in claypan soils with freeze-thaw cycles in early spring in the Midwest U.S. This 4-year study (2019-2022) examined the impact of CC monoculture and mix of CC species on P losses from a fertilizer application, and determined the P balance in soil compared to no cover crop (noCC). The CC mix consisted of wheat (Triticum aestivum L.), radish (Raphanus raphanistrum subsp. Sativus), and turnip (Brassica rapa subsp. Rapa) (3xCCmix) in 2019 and 2021 before corn, and cereal rye (Secale cereale L.) was planted as monoculture before soybean in 2020 and 2022. The 3xCCmix had no effect on total phosphorus (TP) and dissolved reactive phosphorus (PO4-P) concentration or load in 2019 and 2021. Cereal rye reduced TP and PO4-P load 70% and 73%, respectively, compared to noCC. The variation in soil moisture, temperature, and net precipitation from fertilizer application until CC termination affected available soil P pools due to variability in CC species P uptake, residue decomposition, and P loss in surface water runoff. Overall, the P budget calculations showed cereal rye had 2.4 kg ha-1 greater P uptake compared to the 3xCCmix species which also reduced P loss in water and had greater differences in soil P status compared to noCC. This study highlights the benefit of CCs in reducing P loss in surface runoff and immobilizing P through plant uptake. However, these effects were minimal with 3xCCmix species and variability in crop residue decomposition from different CC species could affect overall P-soil balance.
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Affiliation(s)
- Harpreet Kaur
- Statistical Programs, University of Idaho, Moscow ID, 83843, USA.
| | - Kelly A Nelson
- Division of Plant Sciences and Technology, University of Missouri Lee Greenley Jr. Memorial Research Center, Novelty, MO, 63460, USA
| | - Gurbir Singh
- Division of Plant Sciences and Technology, University of Missouri Lee Greenley Jr. Memorial Research Center, Novelty, MO, 63460, USA
| | - Gurpreet Kaur
- School of Natural Resources, University of Missouri, Columbia, MO, 65211, USA
| | - Morgan P Davis
- School of Natural Resources, University of Missouri, Columbia, MO, 65211, USA
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Xiao Z, Lu C, Wu Z, Li X, Ding K, Zhu Z, Han R, Zhao J, Ge T, Li G, Zhu YG. Continuous cropping disorders of eggplants (Solanum melongena L.) and tomatoes (Solanum lycopersicum L.) in suburban agriculture: Microbial structure and assembly processes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 909:168558. [PMID: 37979870 DOI: 10.1016/j.scitotenv.2023.168558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 11/08/2023] [Accepted: 11/11/2023] [Indexed: 11/20/2023]
Abstract
Deciphering the intricate relationships between microorganisms and plants remains a formidable challenge in plant microbial ecology, an area that holds promise for optimizing microbial interventions to enhance stress resilience and agricultural yields. In our investigation, we procured samples during 2019 and 2022 from a suburban agricultural greenhouse. Our study delineated the composition of bacterial and fungal communities across various ecological niches-namely, the rhizosphere soil, bulk soil, and phyllosphere of healthy, Ralstonia solanacearum-infected, and dead eggplants and tomatoes. The structure and composition of both fungal and bacterial communities change significantly under the influence of the host genotype across all samples. In the tomato or eggplant groups, bacterial wilt exerts a more pronounced impact on the bacterial community than on the fungal community. We speculate that the rhizosphere of healthy eggplants and tomatoes harbored more antibiotic-producing (e.g., Amycolatopsis and Penicillium) and biocontrol (e.g., Bacillus) strains, which can lead to have lower absolute abundance of R. solanacearum. In the context of R. solanacearum invasion, deterministic processes were responsible for shaping 70.67 % and 80.63 % of the bacterial community assembly in the rhizosphere of eggplants and tomatoes, respectively. Deterministic processes dominated the assembly of fungal communities in the rhizosphere of R. solanacearum-infected eggplants, whereas the opposite was true in the tomatoes. Homogeneous selection emerged as the predominant force governing the bacterial community assembly in the rhizospheres of R. solanacearum-infected eggplants and tomatoes. The bacterial co-occurrence networks in healthy rhizosphere soil were characterized by reduced vulnerability and enhanced stability (i.e., robustness index) and complexity (i.e., cohesion index), compared to their infected counterparts. In summary, complex microbial networks in rhizosphere soils are more resistant to invasion by soil-borne pathogens. The dynamics of bacterial interactions and community assembly processes are pivotal for effective microbiome management and offer predictive insights into the ecological ramifications of R. solanacearum invasions.
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Affiliation(s)
- Zufei Xiao
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China
| | - Changyi Lu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China
| | - Zhiyong Wu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China
| | - Xinyuan Li
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China; MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Kai Ding
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China.
| | - Zhe Zhu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China; Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham, Ningbo 315100, PR China
| | - Ruixia Han
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China
| | - Junyi Zhao
- Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China
| | - Tida Ge
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Virology, Ningbo University, Ningbo 315211, PR China
| | - Gang Li
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China.
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, PR China
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8
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Nan H, Yang F, Wang C, Xu X, Qiu H, Cao X, Zhao L. Phosphorus Footprint in the Whole Biowaste-Biochar-Soil-Plant System: Reservation, Replenishment, and Reception. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:166-175. [PMID: 38109361 DOI: 10.1021/acs.jafc.3c05970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Two phosphorus (P)-rich biowastes, sewage sludge (SS) and bone dreg (BD), were selected to clarify P footprints among biowaste, biochar, soil, and plants by introducing a novel "3R" concept model. Results showed that pyrolysis resulted in P transformation from an unstable-organic amorphous phase to a stable-inorganic crystalline phase with a P retention rate of 70-90% in biochar (P reservation). In soil, SSBC released more P in acid red soil and alkaline yellow soil than BDBC, while the opposite result appeared in neutral paddy soil. The P released from SSBC formed AlPO4 by combining with Al in soil, whereas P from BDBC transformed into Ca5(PO4)3F(or Cl) in conjunction with Ca in the soil (P replenishment). Various plants exhibited an uptake of approximately 2-6 times more P from biochar-amended soil than from the original soil (P reception). This study can guide the application of biochar in various soil-plant systems for effective nutrient reclamation.
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Affiliation(s)
- Hongyan Nan
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200093, China
| | - Fan Yang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200240, China
| | - Chongqing Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoyun Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200093, China
| | - Hao Qiu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200093, China
| | - Xinde Cao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200093, China
| | - Ling Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200093, China
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9
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Ringeval B, Demay J, Goll DS, He X, Wang YP, Hou E, Matej S, Erb KH, Wang R, Augusto L, Lun F, Nesme T, Borrelli P, Helfenstein J, McDowell RW, Pletnyakov P, Pellerin S. A global dataset on phosphorus in agricultural soils. Sci Data 2024; 11:17. [PMID: 38167392 PMCID: PMC10762041 DOI: 10.1038/s41597-023-02751-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 11/14/2023] [Indexed: 01/05/2024] Open
Abstract
Numerous drivers such as farming practices, erosion, land-use change, and soil biogeochemical background, determine the global spatial distribution of phosphorus (P) in agricultural soils. Here, we revised an approach published earlier (called here GPASOIL-v0), in which several global datasets describing these drivers were combined with a process model for soil P dynamics to reconstruct the past and current distribution of P in cropland and grassland soils. The objective of the present update, called GPASOIL-v1, is to incorporate recent advances in process understanding about soil inorganic P dynamics, in datasets to describe the different drivers, and in regional soil P measurements for benchmarking. We trace the impact of the update on the reconstructed soil P. After the update we estimate a global averaged inorganic labile P of 187 kgP ha-1 for cropland and 91 kgP ha-1 for grassland in 2018 for the top 0-0.3 m soil layer, but these values are sensitive to the mineralization rates chosen for the organic P pools. Uncertainty in the driver estimates lead to coefficients of variation of 0.22 and 0.54 for cropland and grassland, respectively. This work makes the methods for simulating the agricultural soil P maps more transparent and reproducible than previous estimates, and increases the confidence in the new estimates, while the evaluation against regional dataset still suggests rooms for further improvement.
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Affiliation(s)
- Bruno Ringeval
- ISPA, Bordeaux Sciences Agro, INRAE, 33140, Villenave d'Ornon, France.
| | - Josephine Demay
- ISPA, Bordeaux Sciences Agro, INRAE, 33140, Villenave d'Ornon, France
| | - Daniel S Goll
- Université Paris Saclay, CEA-CNRS-UVSQ, LSCE/IPSL, Gif-sur-Yvette, France
| | - Xianjin He
- Université Paris Saclay, CEA-CNRS-UVSQ, LSCE/IPSL, Gif-sur-Yvette, France
| | | | - Enqing Hou
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - Sarah Matej
- Institute of Social Ecology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Karl-Heinz Erb
- Institute of Social Ecology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Rong Wang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China
| | - Laurent Augusto
- ISPA, Bordeaux Sciences Agro, INRAE, 33140, Villenave d'Ornon, France
| | - Fei Lun
- College of Land Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Thomas Nesme
- ISPA, Bordeaux Sciences Agro, INRAE, 33140, Villenave d'Ornon, France
| | - Pasquale Borrelli
- Department of Science, Roma Tre University, 00146, Rome, Italy
- Department of Biological Environment, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Julian Helfenstein
- Soil Geography and Landscape Group, University of Wageningen, Wageningen, 6700AA, The Netherlands
| | - Richard W McDowell
- AgResearch, Lincoln Science Centre, Private Bag 4749, Christchurch, 8140, New Zealand
- Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, PO Box 84, 7647, Christchurch, New Zealand
| | - Peter Pletnyakov
- Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln, PO Box 84, 7647, Christchurch, New Zealand
| | - Sylvain Pellerin
- ISPA, Bordeaux Sciences Agro, INRAE, 33140, Villenave d'Ornon, France
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10
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Sun X, Amelung W, Klumpp E, Walk J, Mörchen R, Böhm C, Moradi G, May SM, Tamburini F, Wang Y, Bol R. Fog controls biological cycling of soil phosphorus in the Coastal Cordillera of the Atacama Desert. GLOBAL CHANGE BIOLOGY 2024; 30:e17068. [PMID: 38273559 DOI: 10.1111/gcb.17068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 11/06/2023] [Indexed: 01/27/2024]
Abstract
Soils in hyper-arid climates, such as the Chilean Atacama Desert, show indications of past and present forms of life despite extreme water limitations. We hypothesize that fog plays a key role in sustaining life. In particular, we assume that fog water is incorporated into soil nutrient cycles, with the inland limit of fog penetration corresponding to the threshold for biological cycling of soil phosphorus (P). We collected topsoil samples (0-10 cm) from each of 54 subsites, including sites in direct adjacency (<10 cm) and in 1 m distance to plants, along an aridity gradient across the Coastal Cordillera. Satellite-based fog detection revealed that Pacific fog penetrates up to 10 km inland, while inland sites at 10-23 km from the coast rely solely on sporadic rainfall for water supply. To assess biological P cycling we performed sequential P fractionation and determined oxygen isotope of HCl-extractable inorganicP δ 18 O HCl - P i $$ \mathrm{P}\ \left({\updelta}^{18}{\mathrm{O}}_{\mathrm{HCl}-{\mathrm{P}}_{\mathrm{i}}}\right) $$ . Total P (Pt ) concentration exponentially increased from 336 mg kg-1 to a maximum of 1021 mg kg-1 in inland areas ≥10 km. With increasing distance from the coast, soilδ 18 O HCl - P i $$ {\updelta}^{18}{\mathrm{O}}_{\mathrm{HCl}-{\mathrm{P}}_{\mathrm{i}}} $$ values declined exponentially from 16.6‰ to a constant 9.9‰ for locations ≥10 km inland. Biological cycling of HCl-Pi near the coast reached a maximum of 76%-100%, which could only be explained by the fact that fog water predominately drives biological P cycling. In inland regions, with minimal rainfall (<5 mm) as single water source, only 24 ± 14% of HCl-Pi was biologically cycled. We conclude that biological P cycling in the hyper-arid Atacama Desert is not exclusively but mainly mediated by fog, which thus controls apatite dissolution rates and related occurrence and spread of microbial life in this extreme environment.
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Affiliation(s)
- Xiaolei Sun
- Institute of Bio- and Geosciences, Agrosphere (IBG-3), Forschungszentrum Jülich, Jülich, Germany
- Institute for Environmental Research, Biology 5, RWTH Aachen University, Aachen, Germany
| | - Wulf Amelung
- Institute of Bio- and Geosciences, Agrosphere (IBG-3), Forschungszentrum Jülich, Jülich, Germany
- Institute of Crop Science and Resource Conservation (INRES)-Soil Science and Soil Ecology, Rheinische Friedrich-Wilhelms-University Bonn, Bonn, Germany
| | - Erwin Klumpp
- Institute of Bio- and Geosciences, Agrosphere (IBG-3), Forschungszentrum Jülich, Jülich, Germany
| | - Janek Walk
- Department of Geography and Regional Research, University of Vienna, Vienna, Austria
| | - Ramona Mörchen
- Institute of Crop Science and Resource Conservation (INRES)-Soil Science and Soil Ecology, Rheinische Friedrich-Wilhelms-University Bonn, Bonn, Germany
| | - Christoph Böhm
- Institute for Geophysics and Meteorology, University of Cologne, Albertus-Magnus-Platz, Cologne, Germany
| | - Ghazal Moradi
- Institute of Bio- and Geosciences, Agrosphere (IBG-3), Forschungszentrum Jülich, Jülich, Germany
- Institute for Environmental Research, Biology 5, RWTH Aachen University, Aachen, Germany
| | - Simon Matthias May
- Institute of Geography, University Cologne, Albertus-Magnus-Platz, Cologne, Germany
| | | | - Ye Wang
- Institute of Crop Science and Resource Conservation (INRES)-Soil Science and Soil Ecology, Rheinische Friedrich-Wilhelms-University Bonn, Bonn, Germany
| | - Roland Bol
- Institute of Bio- and Geosciences, Agrosphere (IBG-3), Forschungszentrum Jülich, Jülich, Germany
- School of Natural Sciences, Environment Centre Wales, Bangor University, Bangor, UK
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11
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Jin Z, Liao P, Jaisi DP, Wang D, Wang J, Wang H, Jiang S, Yang J, Qiu S, Chen J. Suspended phosphorus sustains algal blooms in a dissolved phosphorus-depleted lake. WATER RESEARCH 2023; 241:120134. [PMID: 37262944 DOI: 10.1016/j.watres.2023.120134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 06/03/2023]
Abstract
The expansion of algal bloom in surface waters is a global problem in the freshwater ecosystem. Differential reactivity of organic phosphorus (Po) compounds from organic debris, suspended particulate matter (SPM), and sediment towards hydrolysis can dictate the extent of supply often limited inorganic P (Pi) for algal growth, thereby controlling the extent of bloom. Here, we combined solution P-31 nuclear magnetic resonance (31P NMR), sequential extraction, enzymatic hydrolysis, and 16S rRNA measurements to characterize speciation and biogeochemical cycling of P in Lake Erhai, China. Lower ratios of diester-P/monoester-P in SPM in January (mean 0.09) and July (0.14) than that in April (0.29) reflected the higher degree of diester-P remineralization in cold and warm months. Both H2O-Pi and Po were significantly higher in SPM (mean 1580 mg ·kg-1 and 1618 mg ·kg-1) than those in sediment (mean 8 mg ·kg-1 and 387 mg ·kg-1). In addition, results from enzymatic hydrolysis experiments demonstrated that 61% Po in SPM and 58% in sediment in the H2O, NaHCO3, and NaOH extracts could be hydrolyzed. These results suggested that H2O-Pi and Po from SPM were the primarily bioavailable P sources for algae. Changes of Pi contents (particularly H2O-Pi) in algae and alkaline phosphatase activity (APA) during the observation periods were likely to be controlled by the strategies of P uptake and utilization of algae. P remobilization/remineralization from SPM likely resulted from algae and bacteria (e.g., Pseudomonas). Collectively, these results provide important insights that SPM P could sustain the algal blooms even if the dissolved P was depleted in the water column.
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Affiliation(s)
- Zuxue Jin
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Peng Liao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Deb P Jaisi
- Department of Plant and Soil Science, University of Delaware, Newark, DE 19716, USA
| | - Dengjun Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Jingfu Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
| | - Heng Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Shihao Jiang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China
| | - Jiaojiao Yang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Shuoru Qiu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jingan Chen
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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12
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Siebers N, Kruse J, Jia Y, Lennartz B, Koch S. Loss of subsurface particulate and truly dissolved phosphorus during various flow conditions along a tile drain-ditch-brook continuum. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 866:161439. [PMID: 36623669 DOI: 10.1016/j.scitotenv.2023.161439] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 01/03/2023] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
Subsurface losses of colloidal and truly dissolved phosphorus (P) from arable land can cause ecological damage to surface water. To gain deeper knowledge about subsurface particulate P transport from inland sources to brooks, we studied an artificially drained lowland catchment (1550 ha) in north-eastern Germany. We took daily samples during the winter discharge period 2019/2020 at different locations, i.e., a drain outlet, ditch, and brook, and analyzed them for total P (TPunfiltered), particulate P >750 nm (TP>750 nm), colloidal P (TPcolloids), and truly dissolved P (truly DP) during baseflow conditions and high flow events. The majority of TPunfiltered in the tile drain, ditch, and brook was formed by TP>750 nm (54 to 59 %), followed by truly DP (34 to 38 %) and a small contribution of TPcolloids (5 to 6 %). During flow events, 63 to 66 % of TPunfiltered was present as particulate P (TP>750 nm + TPcolloids), whereas during baseflow the figure was 97 to 99 %; thus, truly DP was almost negligible (1 to 3 % of TPunfiltered) during baseflow. We also found that colloids transported in the water samples have their origin in the water-extractable nanocolloids (0.66 to 20 nm) within the C horizon, which are mainly composed of clay minerals. Along the flow path there is an agglomeration of P-bearing nanocolloids from the soil, with an increasing importance of iron(III) (hydr)oxides over clay particles. Event flow facilitated the transport of greater amounts of larger particles (>750 nm) through the soil matrix. However, the discharge did not exhaust colloid mobilization and colloidal P was exported through the tile-drainage system during the complete runoff period, even under baseflow conditions. Therefore, it is essential that the impact of rainfall intensity and pattern on particulate P discharge be considered more closely so that drainage management can be adjusted to achieve a reduced P export from agricultural land.
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Affiliation(s)
- Nina Siebers
- Institute of Bio and Geosciences-Agrosphere (IBG-3), Forschungszentrum Jülich, D-52425 Jülich, Germany.
| | - Jens Kruse
- Institute of Bio and Geosciences-Agrosphere (IBG-3), Forschungszentrum Jülich, D-52425 Jülich, Germany; Institute of Crop Science and Resource Conservation (INRES), Soil Science and Soil Ecology, University of Bonn, Nussallee 13, 53115 Bonn, Germany
| | - Yunsheng Jia
- Institute of Bio and Geosciences-Agrosphere (IBG-3), Forschungszentrum Jülich, D-52425 Jülich, Germany
| | - Bernd Lennartz
- Faculty of Agricultural and Environmental Sciences, University of Rostock, Justus-von-Liebig-Weg 6, D-18051 Rostock, Germany
| | - Stefan Koch
- Faculty of Agricultural and Environmental Sciences, University of Rostock, Justus-von-Liebig-Weg 6, D-18051 Rostock, Germany
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13
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Mao Y, Hu W, Li Y, Li Y, Lei B, Zheng Y. Long-term cattle manure addition enhances soil-available phosphorus fractions in subtropical open-field rotated vegetable systems. FRONTIERS IN PLANT SCIENCE 2023; 14:1138207. [PMID: 36993857 PMCID: PMC10040636 DOI: 10.3389/fpls.2023.1138207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/24/2023] [Indexed: 06/19/2023]
Abstract
INTRODUCTION Evaluation of the changes in phosphorus (P) fractions (various P forms) and their availability at different soil layers is critical for enhancing P resource use efficiency, mitigating subsequent environmental pollution, and establishing a suitable manure application strategy. However, changes in P fractions at different soil layers in response to cattle manure (M), as well as a combined cattle manure and chemical fertilizer application (M+F), remain unclear in open-field vegetable systems. If the amount of annual P input remains the same, identifying which treatment would cause a higher phosphate fertilizer use efficiency (PUE) and vegetable yield while simultaneously reducing the P surplus is especially warranted. METHODS Based on a long-term manure experiment that started in 2008, we used a modified P fractionation scheme to analyze P fractions at two soil layers for three treatments (M, M+F, and control without fertilizer application) in an open-field cabbage (Brassica oleracea) and lettuce (Lactuca sativa) system, and assessed the PUE and accumulated P surplus. RESULTS The concentrations of the soil P fractions were higher in the 0-20-cm soil layer compared to the 20-40-cm layer, except for organic P (Po) and residual-P. M application significantly increased the inorganic P (Pi) (by 8.92%-72.26%) and the Po content (by 5.01%-61.23%) at the two soil layers. Compared with the control and M+F treatments, M significantly increased residual-P, Resin-P, and NaHCO3-Pi at both soil layers (by 31.9%-32.95%, 68.40%-72.60%, and 48.22%-61.04%), whereas NaOH-Pi and HCl-Pi at 0-20 cm were positively correlated with available P. Soil moderately labile-P was the predominant P component in the two soil layers (accounting for 59%-70%). With the same annual P input amount, M+CF created the highest vegetable yield (117.86 t ha-1), and PUE (37.88%) and M created the highest accumulated P surplus (128.80 kg ha-1yr-1). DISCUSSION Collectively, a combined manure-chemical fertilizer application has great potential to yield a long-term positive outcome both in terms of vegetable productivity and environmental health in open-field vegetable systems. This highlights the methods' benefits as a sustainable practice in subtropical vegetable systems. Specific attention should be given to a P balance to avoid excessive P input if a rational strategy for manure application is to be attained. This is especially the case for stem vegetables that require manure application and decreases the environmental risk of P loss in vegetable systems.
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Affiliation(s)
- Yanting Mao
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, China
- Institute of Agricultural Environment and Resources, Yunnan Academy of Agricultural Sciences (YAAS), Kunming, China
| | - Wei Hu
- The New Zealand Institute for Plant and Food Research Limited, Canterbury Agriculture and Science Centre, Christchurch, New Zealand
| | - Yongmei Li
- Faculty of Resource and Environment, Yunnan Agricultural University, Kunming, China
| | - Yuan Li
- National Field Scientific Observation and Research Station of Grassland Agro-Ecosystems in Gansu Qingyang, College of Pastoral Agriculture Science and Technology, The State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems of Lanzhou University, Lanzhou, China
| | - Baokun Lei
- Institute of Agricultural Environment and Resources, Yunnan Academy of Agricultural Sciences (YAAS), Kunming, China
| | - Yi Zheng
- Faculty of Plant Protection, Yunnan Agricultural University, Kunming, China
- Department of President Office, Yunnan Open University, Kunming, China
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14
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Gao Y, Zeng F. Patterns of carbon, nitrogen, and phosphorus stoichiometry of three life-form desert plants and responses to soil and microbial biomass factors in a hyper-arid desert ecosystem. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:43962-43974. [PMID: 36680725 DOI: 10.1007/s11356-023-25445-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/17/2023] [Indexed: 06/17/2023]
Abstract
Plant, soil, and microbial biomass ratios of carbon (C), nitrogen (N), and phosphorus (P) are crucial in maintaining stability of desert ecosystems. Nevertheless, variation in relations of elemental ratios between different life forms of plants and soil and microbial biomass in desert ecosystems remains unclear. In a hyper-arid desert ecosystem, C, N, and P concentrations and ratios were analyzed in the plant-soil-microbial biomass system of three perennial desert species (Alhagi sparsifolia Shap. [Herb, Fabaceae], Karelinia caspica Pall. [Herb, non-Fabaceae], and Tamarix ramosissima Ledeb. [Shrub]). Concentrations of N and P in Alhagi sparsifolia leaf, stem, and root were significantly greater than those in Karelinia caspica and Tamarix ramosissima, whereas plant C and soil organic C (SOC) were highest with Tamarix ramosissima. Alhagi sparsifolia and Tamarix ramosissima were P-limited, whereas Karelinia caspica was N-limited. According to correlation analysis, SOC rather than soil total P (STP) regulated plant N:P ratios, and microbial biomass C, N, and P rather than SOC, soil total N, and STP regulated plant C:N:P ratios. Soil water content also affected plant nutrient balance. Thus, in a hyper-arid desert ecosystem, the plant-soil-microbial biomass system and the balance of C, N, and P are closely related, and the role of soil microbial biomass in affecting plant nutrient balance should receive increased attention.
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Affiliation(s)
- Yanju Gao
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, Hotan, 848300, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fanjiang Zeng
- Xinjiang Key Laboratory of Desert Plant Roots Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China.
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, China.
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, Hotan, 848300, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
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15
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Liu S, Xu G, Chen H, Zhang M, Cao X, Chen M, Chen J, Feng Q, Shi Z. Contrasting responses of soil microbial biomass and extracellular enzyme activity along an elevation gradient on the eastern Qinghai-Tibetan Plateau. Front Microbiol 2023; 14:974316. [PMID: 36744094 PMCID: PMC9889656 DOI: 10.3389/fmicb.2023.974316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 01/02/2023] [Indexed: 01/19/2023] Open
Abstract
Soil microbial community composition and extracellular enzyme activity are two main drivers of biogeochemical cycling. Knowledge about their elevational patterns is of great importance for predicting ecosystem functioning in response to climate change. Nevertheless, there is no consensus on how soil microbial community composition and extracellular enzyme activity vary with elevation, and little is known about their elevational variations on the eastern Qinghai-Tibetan Plateau, a region sensitive to global change. We therefore investigated the soil microbial community composition using phospholipid fatty acids (PLFAs) analysis, and enzyme activities at 2,820 m (coniferous and broadleaved mixed forest), 3,160 m (dark coniferous forest), 3,420 m (alpine dwarf forest), and 4,280 m (alpine shrubland) above sea level. Our results showed that soil microbial community composition and extracellular enzyme activities changed significantly along the elevational gradient. Biomass of total microbes, bacteria, and arbuscular mycorrhizal fungi at the highest elevation were the significantly lowest among the four elevations. In contrast, extracellular enzyme activities involved in carbon (C)-, nitrogen (N)-, and phosphorus (P)- acquiring exhibited the maximum values at the highest elevation. Total nutrients and available nutrients, especially P availability jointly explained the elevational pattern of soil microbial community, while the elevational variation of extracellular enzyme activities was dependent on total nutrients. Microbial metabolism was mainly C- and P-limited with an increasing C limitation but a decreasing P limitation along the elevational gradient, which was related significantly to mean annual temperature and total P. These results indicated a vital role of soil P in driving the elevational patterns of soil microbial community and metabolism. Overall, the study highlighted the contrasting responses of soil microbial biomass and extracellular enzyme activities to elevation, possibly suggesting the differences in adaption strategy between population growth and resource acquisition responding to elevation. The results provide essential information for understanding and predicting the response of belowground community and function to climate change on the eastern Qinghai-Tibetan Plateau.
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Affiliation(s)
- Shun Liu
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
- Miyaluo Research Station of Alpine Forest Ecosystem, Lixian County, China
| | - Gexi Xu
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
- Miyaluo Research Station of Alpine Forest Ecosystem, Lixian County, China
| | - Huanhuan Chen
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
- Miyaluo Research Station of Alpine Forest Ecosystem, Lixian County, China
| | - Miaomiao Zhang
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
- Miyaluo Research Station of Alpine Forest Ecosystem, Lixian County, China
| | - Xiangwen Cao
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
- Miyaluo Research Station of Alpine Forest Ecosystem, Lixian County, China
| | - Miao Chen
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
- Miyaluo Research Station of Alpine Forest Ecosystem, Lixian County, China
| | - Jian Chen
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
- Miyaluo Research Station of Alpine Forest Ecosystem, Lixian County, China
| | - Qiuhong Feng
- Ecological Restoration and Conservation on Forest and Wetland Key Laboratory of Sichuan Province, Sichuan Wolong Forest Ecosystem Research Station, Sichuan Academy of Forestry, Chengdu, China
| | - Zuomin Shi
- Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing, China
- Miyaluo Research Station of Alpine Forest Ecosystem, Lixian County, China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, China
- Institute for Sustainable Plant Protection, National Research Council of Italy, Turino, Italy
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16
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Rastetter EB, Kwiatkowski BL, Kicklighter DW, Barker Plotkin A, Genet H, Nippert JB, O'Keefe K, Perakis SS, Porder S, Roley SS, Ruess RW, Thompson JR, Wieder WR, Wilcox K, Yanai RD. N and P constrain C in ecosystems under climate change: Role of nutrient redistribution, accumulation, and stoichiometry. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2022; 32:e2684. [PMID: 35633204 PMCID: PMC10078338 DOI: 10.1002/eap.2684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 03/07/2022] [Accepted: 04/19/2022] [Indexed: 06/15/2023]
Abstract
We use the Multiple Element Limitation (MEL) model to examine responses of 12 ecosystems to elevated carbon dioxide (CO2 ), warming, and 20% decreases or increases in precipitation. Ecosystems respond synergistically to elevated CO2 , warming, and decreased precipitation combined because higher water-use efficiency with elevated CO2 and higher fertility with warming compensate for responses to drought. Response to elevated CO2 , warming, and increased precipitation combined is additive. We analyze changes in ecosystem carbon (C) based on four nitrogen (N) and four phosphorus (P) attribution factors: (1) changes in total ecosystem N and P, (2) changes in N and P distribution between vegetation and soil, (3) changes in vegetation C:N and C:P ratios, and (4) changes in soil C:N and C:P ratios. In the combined CO2 and climate change simulations, all ecosystems gain C. The contributions of these four attribution factors to changes in ecosystem C storage varies among ecosystems because of differences in the initial distributions of N and P between vegetation and soil and the openness of the ecosystem N and P cycles. The net transfer of N and P from soil to vegetation dominates the C response of forests. For tundra and grasslands, the C gain is also associated with increased soil C:N and C:P. In ecosystems with symbiotic N fixation, C gains resulted from N accumulation. Because of differences in N versus P cycle openness and the distribution of organic matter between vegetation and soil, changes in the N and P attribution factors do not always parallel one another. Differences among ecosystems in C-nutrient interactions and the amount of woody biomass interact to shape ecosystem C sequestration under simulated global change. We suggest that future studies quantify the openness of the N and P cycles and changes in the distribution of C, N, and P among ecosystem components, which currently limit understanding of nutrient effects on C sequestration and responses to elevated CO2 and climate change.
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Affiliation(s)
| | | | | | | | - Helene Genet
- Institute of Arctic BiologyUniversity of Alaska FairbanksFairbanksAlaskaUSA
| | | | - Kimberly O'Keefe
- Department of Biological SciencesSaint Edward's UniversityAustinTexasUSA
| | - Steven S. Perakis
- U.S. Geological SurveyForest and Rangeland Ecosystem Science CenterCorvallisOregonUSA
| | - Stephen Porder
- Ecology and Evolutionary BiologyInstitute for Environment and Society, Brown UniversityProvidenceRhode IslandUSA
| | - Sarah S. Roley
- School of the EnvironmentWashington State UniversityRichlandWashingtonUSA
- W.K. Kellogg Biological StationMichigan State UniversityHickory CornersMichiganUSA
| | - Roger W. Ruess
- Department of Biology and WildlifeInstitute of Arctic Biology, University of Alaska FairbanksFairbanksAlaskaUSA
| | | | - William R. Wieder
- Climate and Global Dynamics LaboratoryNational Center for Atmospheric ResearchBoulderColoradoUSA
- Institute of Arctic and Alpine ResearchUniversity of Colorado BoulderBoulderColoradoUSA
| | - Kevin Wilcox
- Department of Ecosystem Science and ManagementUniversity of WyomingLaramieWyomingUSA
| | - Ruth D. Yanai
- Department of Sustainable Resources ManagementSUNY College of Environmental Science and ForestrySyracuseNew YorkUSA
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17
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Solhtalab M, Moller SR, Gu AZ, Jaisi D, Aristilde L. Selectivity in Enzymatic Phosphorus Recycling from Biopolymers: Isotope Effect, Reactivity Kinetics, and Molecular Docking with Fungal and Plant Phosphatases. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:16441-16452. [PMID: 36283689 PMCID: PMC9670850 DOI: 10.1021/acs.est.2c04948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/05/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Among ubiquitous phosphorus (P) reserves in environmental matrices are ribonucleic acid (RNA) and polyphosphate (polyP), which are, respectively, organic and inorganic P-containing biopolymers. Relevant to P recycling from these biopolymers, much remains unknown about the kinetics and mechanisms of different acid phosphatases (APs) secreted by plants and soil microorganisms. Here we investigated RNA and polyP dephosphorylation by two common APs, a plant purple AP (PAP) from sweet potato and a fungal phytase from Aspergillus niger. Trends of δ18O values in released orthophosphate during each enzyme-catalyzed reaction in 18O-water implied a different extent of reactivity. Subsequent enzyme kinetics experiments revealed that A. niger phytase had 10-fold higher maximum rate for polyP dephosphorylation than the sweet potato PAP, whereas the sweet potato PAP dephosphorylated RNA at a 6-fold faster rate than A. niger phytase. Both enzymes had up to 3 orders of magnitude lower reactivity for RNA than for polyP. We determined a combined phosphodiesterase-monoesterase mechanism for RNA and terminal phosphatase mechanism for polyP using high-resolution mass spectrometry and 31P nuclear magnetic resonance, respectively. Molecular modeling with eight plant and fungal AP structures predicted substrate binding interactions consistent with the relative reactivity kinetics. Our findings implied a hierarchy in enzymatic P recycling from P-polymers by phosphatases from different biological origins, thereby influencing the relatively longer residence time of RNA versus polyP in environmental matrices. This research further sheds light on engineering strategies to enhance enzymatic recycling of biopolymer-derived P, in addition to advancing environmental predictions of this P recycling by plants and microorganisms.
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Affiliation(s)
- Mina Solhtalab
- Department
of Biological and Environmental Engineering, College of Agriculture
and Life Sciences, Cornell University, Ithaca, New York 14853, United States
- Department
of Civil and Environmental Engineering, McCormick School of Engineering
and Applied Science, Northwestern University, Evanston, Illinois 60208, United States
| | - Spencer R. Moller
- Department
of Plant and Soil Sciences, University of
Delaware, Newark, Delaware 19716, United States
| | - April Z. Gu
- School
of Civil and Environmental Engineering, College of Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Deb Jaisi
- Department
of Plant and Soil Sciences, University of
Delaware, Newark, Delaware 19716, United States
| | - Ludmilla Aristilde
- Department
of Biological and Environmental Engineering, College of Agriculture
and Life Sciences, Cornell University, Ithaca, New York 14853, United States
- Department
of Civil and Environmental Engineering, McCormick School of Engineering
and Applied Science, Northwestern University, Evanston, Illinois 60208, United States
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18
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Tolu J, Bouchet S, Helfenstein J, Hausheer O, Chékifi S, Frossard E, Tamburini F, Chadwick OA, Winkel LHE. Understanding soil selenium accumulation and bioavailability through size resolved and elemental characterization of soil extracts. Nat Commun 2022; 13:6974. [PMID: 36379945 PMCID: PMC9666626 DOI: 10.1038/s41467-022-34731-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 11/04/2022] [Indexed: 11/16/2022] Open
Abstract
Dietary deficiency of selenium is a global health threat related to low selenium concentrations in crops. Despite the chemical similarity of selenium to the two more abundantly studied elements sulfur and arsenic, the understanding of its accumulation in soils and availability for plants is limited. The lack of understanding of soil selenium cycling is largely due to the unavailability of methods to characterize selenium species in soils, especially the organic ones. Here we develop a size-resolved multi-elemental method using liquid chromatography and elemental mass spectrometry, which enables an advanced characterization of selenium, sulfur, and arsenic species in soil extracts. We apply the analytical approach to soils sampled along the Kohala rainfall gradient on Big Island (Hawaii), which cover a large range of organic carbon and (oxy)hydroxides contents. Similarly to sulfur but contrarily to arsenic, a large fraction of selenium is found associated with organic matter in these soils. However, while sulfur and arsenic are predominantly found as oxyanions in water extracts, selenium mainly exists as small hydrophilic organic compounds. Combining Kohala soil speciation data with concentrations in parent rock and plants further suggests that selenium association with organic matter limits its mobility in soils and availability for plants.
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Affiliation(s)
- Julie Tolu
- grid.418656.80000 0001 1551 0562Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Water Resources and Drinking Water (W+T), Überlandstrasse 133, 8600 Dübendorf, Switzerland ,grid.5801.c0000 0001 2156 2780ETH Zurich, Swiss Federal Institute of Technology, Department of Environment Systems Sciences (D-USYS), Institute of Biogeochemistry and Pollutant Dynamics (IBP), Group of Inorganic Environmental Geochemistry, Universitätstrasse 16, 8092 Zurich, Switzerland
| | - Sylvain Bouchet
- grid.418656.80000 0001 1551 0562Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Water Resources and Drinking Water (W+T), Überlandstrasse 133, 8600 Dübendorf, Switzerland ,grid.5801.c0000 0001 2156 2780ETH Zurich, Swiss Federal Institute of Technology, Department of Environment Systems Sciences (D-USYS), Institute of Biogeochemistry and Pollutant Dynamics (IBP), Group of Inorganic Environmental Geochemistry, Universitätstrasse 16, 8092 Zurich, Switzerland
| | - Julian Helfenstein
- ETH Zurich, Swiss Federal Institute of Technology, Department of Environment Systems Sciences (D-USYS), Institute of Agricultural Sciences (IAS), Group of Plant Nutrition, Eschikon 33, 8315 Lindau, Switzerland ,grid.4818.50000 0001 0791 5666Present Address: Soil Geography and Landscape Group, Wageningen University, 6700 AA Wageningen, The Netherlands
| | - Olivia Hausheer
- grid.418656.80000 0001 1551 0562Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Water Resources and Drinking Water (W+T), Überlandstrasse 133, 8600 Dübendorf, Switzerland ,grid.5801.c0000 0001 2156 2780ETH Zurich, Swiss Federal Institute of Technology, Department of Environment Systems Sciences (D-USYS), Institute of Biogeochemistry and Pollutant Dynamics (IBP), Group of Inorganic Environmental Geochemistry, Universitätstrasse 16, 8092 Zurich, Switzerland
| | - Sarah Chékifi
- grid.418656.80000 0001 1551 0562Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Water Resources and Drinking Water (W+T), Überlandstrasse 133, 8600 Dübendorf, Switzerland ,grid.5801.c0000 0001 2156 2780ETH Zurich, Swiss Federal Institute of Technology, Department of Environment Systems Sciences (D-USYS), Institute of Biogeochemistry and Pollutant Dynamics (IBP), Group of Inorganic Environmental Geochemistry, Universitätstrasse 16, 8092 Zurich, Switzerland
| | - Emmanuel Frossard
- ETH Zurich, Swiss Federal Institute of Technology, Department of Environment Systems Sciences (D-USYS), Institute of Agricultural Sciences (IAS), Group of Plant Nutrition, Eschikon 33, 8315 Lindau, Switzerland
| | - Federica Tamburini
- ETH Zurich, Swiss Federal Institute of Technology, Department of Environment Systems Sciences (D-USYS), Institute of Agricultural Sciences (IAS), Group of Plant Nutrition, Eschikon 33, 8315 Lindau, Switzerland
| | - Oliver A. Chadwick
- grid.133342.40000 0004 1936 9676Department of Geography, University of California, Santa Barbara, CA 93106 USA
| | - Lenny H. E. Winkel
- grid.418656.80000 0001 1551 0562Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Water Resources and Drinking Water (W+T), Überlandstrasse 133, 8600 Dübendorf, Switzerland ,grid.5801.c0000 0001 2156 2780ETH Zurich, Swiss Federal Institute of Technology, Department of Environment Systems Sciences (D-USYS), Institute of Biogeochemistry and Pollutant Dynamics (IBP), Group of Inorganic Environmental Geochemistry, Universitätstrasse 16, 8092 Zurich, Switzerland
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19
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Kang L, Wang J, Zhang L, Sun Y, Chu G. Tracing the Transformation and Allocation of the Newly Applied-P in Calcareous Soil Using an Enriched Oxygen Isotope Labeling Technique. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:13473-13485. [PMID: 36239601 DOI: 10.1021/acs.jafc.2c03933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Different phosphorus (P) fertilizations significantly impact the transformation of the applied-P in soils. However, knowledge about how different P fertilization regimes influence the allocation of the amended-P in soil remains incomplete. Herein, we carried out a pot experiment to explore the fate of applied-P in calcareous soil using an oxygen isotope labeling technique (18O-P18O43-). Treatments included check (CK), single, and repeated applications. The phosphorus mass balance result showed that more than 48.5% of the applied-P was held in labile and moderately labile fractions with the repeated treatment, while approximately 27.4% of the added-P was recovered in nonlabile forms in the single application treatment. The isotopic tracer (18O-P18O43-) result demonstrated that the δ18OP values of NaHCO3-P and NaOH-P in the repeated P application were significantly higher than those in the single P application. Ultimately, better agronomic performances of the crops and higher PUE were achieved in the repeated treatment. Our findings highlighted that repeated P fertilization can improve P availability by reducing P fixation. These results pronounced that the enriched oxygen isotope technique can be considered an effective approach for tracing applied-P in soils.
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Affiliation(s)
- Longfei Kang
- Oasis Eco-Agriculture Key Laboratory Xinjiang Production and Construction Group/College of Agriculture, Shihezi University, Shihezi832000, Xinjiang, P. R. China
- College of Life Science, Shaoxing University, Shaoxing312000, Zhejiang, P. R. China
| | - Jing Wang
- School of Agronomy and Horticulture, Jiangsu Vocational College of Agriculture and Forestry, Jurong212400, Jiangsu, P. R. China
| | - Licun Zhang
- Oasis Eco-Agriculture Key Laboratory Xinjiang Production and Construction Group/College of Agriculture, Shihezi University, Shihezi832000, Xinjiang, P. R. China
- College of Life Science, Shaoxing University, Shaoxing312000, Zhejiang, P. R. China
| | - Yuqiang Sun
- Oasis Eco-Agriculture Key Laboratory Xinjiang Production and Construction Group/College of Agriculture, Shihezi University, Shihezi832000, Xinjiang, P. R. China
- Plant Genomics & Molecular Improvement of Colored Fiber Lab/Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou310016, Zhejiang, P. R. China
| | - Guixin Chu
- College of Life Science, Shaoxing University, Shaoxing312000, Zhejiang, P. R. China
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20
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Li Y, Wang J, He L, Xu X, Wang J, Ren C, Guo Y, Zhao F. Different mechanisms driving increasing abundance of microbial phosphorus cycling gene groups along an elevational gradient. iScience 2022; 25:105170. [PMID: 36204265 PMCID: PMC9529982 DOI: 10.1016/j.isci.2022.105170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 08/30/2022] [Accepted: 09/16/2022] [Indexed: 11/15/2022] Open
Abstract
Microbes play an integral role in forest soil phosphorus (P) cycling. However, the variation of microbial P-cycling functional genes and their controlling factors in forest soils is unclearly. We used metagenomics to investigate changes in the abundance of genes involved in P-starvation response regulation, P-uptake and transport, and P-solubilization and mineralization along the five elevational gradients. Our results showed the abundance of three P cycling gene groups increasing along the elevational gradient. Acidobacteria and Proteobacteria were the dominant microbial phyla determining the turnover of soil P-solubilization and immobilization. Along the elevational gradient, soil substrates are the major factor explaining variation in P-starvation response regulation genes. Soil environment is the main driver of P-uptake and transport and P-solubilization and mineralization genes. This study provided insights into the regulation of P-cycling from a microbial functional profile perspective, highlighting the importance of substrate and environmental factors for P-cycling genes in forest soils. P-cycling functional genes increased along the elevational gradient Acidobacteria and Proteobacteria are the key phyla for P cycle in forest soils Microbial functional gene groups for P-cycling were driven by different factors
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21
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Wells NS, Gooddy DC, Reshid MY, Williams PJ, Smith AC, Eyre BD. δ 18O as a tracer of PO 43- losses from agricultural landscapes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 317:115299. [PMID: 35623132 DOI: 10.1016/j.jenvman.2022.115299] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 05/09/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Accurately tracing the sources and fate of excess PO43- in waterways is necessary for sustainable catchment management. The natural abundance isotopic composition of O in PO43- (δ18OP) is a promising tracer of point source pollution, but its ability to track diffuse agricultural pollution is unclear. We tested the hypothesis that δ18OP could distinguish between agricultural PO43- sources by measuring the integrated δ18OP composition and P speciation of contrasting inorganic fertilisers (compound vs rock) and soil textures (sand, loam, clay) in southwestern Australia. δ18OP composition differed between the three soil textures sampled across six livestock farms: sandy soils had lower overall δ18OP values (21 ± 1‰) than the loams (23 ± 1‰), which corresponded with a smaller, but more readily leachable, PO43- pool. Fertilisers had greater δ18OP variability (∼8‰), with fluctuations due to type and manufacturing year. Consequently, catchment 'agricultural soil leaching' δ18OP signatures could span from 18 to 25‰ depending on both fertiliser type and timing (lag between application and leaching). These findings emphasise the potential of δ18OP to untangle soil-fertiliser P dynamics under controlled conditions, but that its use to trace catchment-scale agricultural PO43- losses is limited by uncertainties in soil biological P cycling and its associated isotopic fractionation.
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Affiliation(s)
- Naomi S Wells
- Centre for Coastal Biogeochemistry, School of Environment, Science & Engineering, Southern Cross University, PO Box 157, East Lismore, 2480, NSW, Australia; Department of Soil & Physical Sciences, Faculty of Agricultural & Life Sciences, Lincoln University, Lincoln, 7647, New Zealand.
| | - Daren C Gooddy
- British Geological Survey, Wallingford, Oxfordshire, OX10 8BB, UK
| | - Mustefa Yasin Reshid
- Centre for Coastal Biogeochemistry, School of Environment, Science & Engineering, Southern Cross University, PO Box 157, East Lismore, 2480, NSW, Australia
| | - Peter J Williams
- British Geological Survey, Wallingford, Oxfordshire, OX10 8BB, UK
| | - Andrew C Smith
- British Geological Survey, Keyworth, Nottinghamshire, NG12 5GG, UK
| | - Bradley D Eyre
- Centre for Coastal Biogeochemistry, School of Environment, Science & Engineering, Southern Cross University, PO Box 157, East Lismore, 2480, NSW, Australia
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22
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Wang Z, Guo Q, Tian L. Tracing phosphorus cycle in global watershed using phosphate oxygen isotopes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 829:154611. [PMID: 35307435 DOI: 10.1016/j.scitotenv.2022.154611] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/24/2022] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
The Phosphorus (P) cycle is a crucial biochemical process in the earth system. However, an extensive increase of P input into watersheds destroyed the ecosystem. To explore the effects of internal P loading and external P input in global watersheds, we reviewed the research progress and synthesized the isotope data of experimental results from literatures. An integrated result of the observational and experimental studies revealed that both internal P and external P largely contribute to watershed P loadings in watersheds. Internal P can be released to the overlying water during sediment resuspension process and change of redox conditions near the sediment-water interface. Growing fertilizer application on farmlands to meet food demand with population rise and diet improvement contributed to an huge increase of external P input to watersheds. Therefore, water quality cannot be improved by only reducing internal P or external P loadings. In addition, we found that phosphate oxygen isotope technology is an effectively way to trace the P biogeochemical cycle in watersheds. To better predict the dynamic of P in watersheds, future research integrating oxygen isotope fractionation mechanisms and phosphate oxygen isotope technology would be more effective.
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Affiliation(s)
- Ziteng Wang
- Key Laboratory for Resource Use and Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingjun Guo
- Key Laboratory for Resource Use and Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Liyan Tian
- Institute of Process Engineering, Chinese Academy of Sciences, China
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23
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Tariq A, Sardans J, Peñuelas J, Zhang Z, Graciano C, Zeng F, Olatunji OA, Ullah A, Pan K. Intercropping of Leguminous and Non-Leguminous Desert Plant Species Does Not Facilitate Phosphorus Mineralization and Plant Nutrition. Cells 2022; 11:cells11060998. [PMID: 35326448 PMCID: PMC8946938 DOI: 10.3390/cells11060998] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/12/2022] [Accepted: 03/13/2022] [Indexed: 12/27/2022] Open
Abstract
More efficient use of soil resources, such as nitrogen (N) and phosphorus (P), can improve plant community resistance and resilience against drought in arid and semi-arid lands. Intercropping of legume and non-legumes can be an effective practice for enhancing P mineralization uptake, and plant nutrient status. However, it remains unclear how intercropping systems using desert plant species impact soil-plant P fractions and how they affect N and water uptake capacity. Alhagi sparsifolia (a legume) and Karelinia caspia (a non-legume) are dominant plant species in the Taklamakan Desert in Xinjiang Province, China. However, there is a lack of knowledge of whether these species, when intercropped, can trigger synergistic processes and mechanisms that drive more efficient use of soil resources. Thus, in a field experiment over two years, we investigated the impact of monoculture and intercropping of these plant species on soil-plant P fractions and soil-plant nutrients. Both plant species’ foliar nutrient (N, P, and K) concentrations were higher under monoculture than intercropping (except K in K. caspia). Nucleic acid P was higher in the monoculture plots of A. sparsifolia, consistent with higher soil labile P, while metabolic P was higher in monoculture K. caspia, associated with higher soil moderately labile Pi. However, both species had a higher residual P percentage in the intercropping system. Soils from monoculture and intercropped plots contained similar microbial biomass carbon (MBC), but lower microbial biomass N:microbial biomass phosphorus (MBN:MBP) ratio associated with reduced N-acetylglucosaminidase (NAG) activity in the intercropped soils. This, together with the high MBC:MBN ratio in intercropping and the lack of apparent general effects of intercropping on MBC:MBP, strongly suggest that intercropping improved microbe N- but not P-use efficiency. Interestingly, while EC and SWC were higher in the soil of the K. caspia monoculture plots, EC was significantly lower in the intercropped plots. Plants obtained better foliar nutrition and soil P mineralization in monocultures than in intercropping systems. The possible positive implications of intercropping for reducing soil salinization and improving soil water uptake and microbial N-use efficiency could have advantages in the long term and its utilization should be explored further in future studies.
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Affiliation(s)
- Akash Tariq
- Xinjiang Key Desert Plant Roots Ecology and Vegetation Restoration Laboratory, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (Z.Z.); (A.U.)
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China
- University of Chinese Academy of Sciences, Beijing 101408, China
- Correspondence: (A.T.); (F.Z.)
| | - Jordi Sardans
- Global Ecology Unit, CREAF-CSIC-UAB, Consejo Superior de Investigaciones Científicas (CSIC), Bellaterra, 08193 Barcelona, Catalonia, Spain; (J.S.); (J.P.)
- Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Josep Peñuelas
- Global Ecology Unit, CREAF-CSIC-UAB, Consejo Superior de Investigaciones Científicas (CSIC), Bellaterra, 08193 Barcelona, Catalonia, Spain; (J.S.); (J.P.)
- Centre de Recerca Ecològica i Aplicacions Forestals (CREAF), 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Zhihao Zhang
- Xinjiang Key Desert Plant Roots Ecology and Vegetation Restoration Laboratory, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (Z.Z.); (A.U.)
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China
| | - Corina Graciano
- Instituto de Fisiología Vegetal, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata, La Plata B1900, Buenos Aires, Argentina;
| | - Fanjiang Zeng
- Xinjiang Key Desert Plant Roots Ecology and Vegetation Restoration Laboratory, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (Z.Z.); (A.U.)
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China
- Correspondence: (A.T.); (F.Z.)
| | - Olusanya Abiodun Olatunji
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; (O.A.O.); (K.P.)
| | - Abd Ullah
- Xinjiang Key Desert Plant Roots Ecology and Vegetation Restoration Laboratory, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; (Z.Z.); (A.U.)
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele 848300, China
- University of Chinese Academy of Sciences, Beijing 101408, China
| | - Kaiwen Pan
- CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; (O.A.O.); (K.P.)
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24
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Wang Y, Huang Y, Augusto L, Goll DS, Helfenstein J, Hou E. Toward a Global Model for Soil Inorganic Phosphorus Dynamics: Dependence of Exchange Kinetics and Soil Bioavailability on Soil Physicochemical Properties. GLOBAL BIOGEOCHEMICAL CYCLES 2022; 36:e2021GB007061. [PMID: 35865755 PMCID: PMC9286372 DOI: 10.1029/2021gb007061] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 06/15/2023]
Abstract
The representation of phosphorus (P) cycling in global land models remains quite simplistic, particularly on soil inorganic phosphorus. For example, sorption and desorption remain unresolved and their dependence on soil physical and chemical properties is ignored. Empirical parameter values are usually based on expert knowledge or data from few sites with debatable global representativeness in most global land models. To overcome these issues, we compiled from data of inorganic soil P fractions and calculated the fraction of added P remaining in soil solution over time of 147 soil samples to optimize three parameters in a model of soil inorganic P dynamics. The calibrated model performed well (r 2 > 0.7 for 122 soil samples). Model parameters vary by several orders of magnitude, and correlate with soil P fractions of different inorganic pools, soil organic carbon and oxalate extractable metal oxide concentrations among the soil samples. The modeled bioavailability of soil P depends on, not only, the desorption rates of labile and sorbed pool, inorganic phosphorus fractions, the slope of P sorbed against solution P concentration, but also on the ability of biological uptake to deplete solution P concentration and the time scale. The model together with the empirical relationships of model parameters on soil properties can be used to quantify bioavailability of soil inorganic P on various timescale especially when coupled within global land models.
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Affiliation(s)
| | | | - Laurent Augusto
- INRAEBordeaux Sciences AgroUMR 1391 ISPAVillenave d'OrnonFrance
| | - Daniel S. Goll
- Université Paris SaclayCEA‐CNRS‐UVSQLSCE/IPSLGif sur YvetteFrance
| | | | - Enqing Hou
- Key Laboratory of Vegetation Restoration and Management of Degraded EcosystemsSouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
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25
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Fan B, Ding J, Fenton O, Daly K, Chen S, Zhang S, Chen Q. Investigation of differential levels of phosphorus fixation in dolomite and calcium carbonate amended red soil. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:740-749. [PMID: 34173233 DOI: 10.1002/jsfa.11405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 05/09/2021] [Accepted: 06/26/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND The pH adjustment of acidic red soils with lime materials is beneficial for the reduction of phosphorus (P) fixation. However, the reasons for varying levels of P activation after adding different lime materials have not been fully investigated. Therefore, this study examined changes in soil labile P and P forms after phosphate application to calcium carbonate (CaCO3 ) and dolomite amended red soil during a 120-day incubation period. Also change of P sorption properties in the amended soil samples from day 120 were examined through a sorption-desorption experiment. RESULTS The increase of soil H2 O-P and NaHCO3 -P in the CaCO3 and dolomite amended soil treatments was mainly ascribed to the decline of the NaOH-P. However, when compared with the control treatment after 120 days, soil Olsen-P significantly increased by 34% and 66% in the CaCO3 and dolomite treatments. The Hedley P fractionation results demonstrated that the CaCO3 application caused a notable increase of HCl-P (stable Ca-P), which was 88.4% higher than that in the dolomite treatment. However, the formation of stable P was strongly suppressed in the dolomite treatment due to the presence of magnesium (Mg), which was identified by the negative relationship between M3-Mg and HCl-P. In line with these findings, P sorption-desorption work showed weaker P binding energy in the dolomite treatment relative to the CaCO3 treatment. CONCLUSION In terms of increasing P availability in red soil, this study suggests that dolomite should be used to substitute CaCO3 in order to reduce the soil P fixation. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Bingqian Fan
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-Control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Jiahui Ding
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-Control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Owen Fenton
- Teagasc, Department of Crops, Environment and Land Use, Environmental Resources Centre, Johnstown Castle, Wexford, Ireland
| | - Karen Daly
- Teagasc, Department of Crops, Environment and Land Use, Environmental Resources Centre, Johnstown Castle, Wexford, Ireland
| | - Shuo Chen
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-Control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Shuai Zhang
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-Control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Qing Chen
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-Control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
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26
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Fang W, Williams PN, Zhang H, Yang Y, Yin D, Liu Z, Sun H, Luo J. Combining Multiple High-Resolution In Situ Techniques to Understand Phosphorous Availability Around Rice Roots. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:13082-13092. [PMID: 34554745 DOI: 10.1021/acs.est.1c05358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Resolving chemical/biological drivers of P behavior around lowland/flooded rice roots remains a challenge because of the heterogeneity of the plant-soil interactions, compounded by sampling and analytical constraints. High-spatial-resolution (sub-mm) visualization enables these processes to be isolated, characterized, and deciphered. Here, three advanced soil imaging systems, diffusive gradients in thin-film technique coupled with laser ablation-ICPMS (DGT-LA-ICPMS), O2 planar optode, and soil zymography, were integrated. This trio of approaches was then applied to a rice life cycle study to quantify solute-P supply, through two dimensions, in situ, and low-disturbance high-resolution (HR) chemical imaging. This allowed mechanisms of P release to be delineated by O2, Fe, and phosphatase activity mapping at the same scale. HR-DGT revealed P depletion around both living and dead rice roots but with highly spatially variable Fe/P ratios (∼0.2-12.0) which aligned with changing redox conditions and root activities. Partnering of HR-DGT and soil zymography revealed concurrent P depletion and phosphatase hotspots in the rhizosphere and detritusphere zones (Mantel: 0.610-0.810, p < 0.01). This close affinity between these responses (Pearson correlation: -0.265 to -0.660, p < 0.01) cross-validates the measurements and reaffirms that P depletion stimulates phosphatase activity and Porg mineralization. The μ-scale biogeochemical landscape of rice rhizospheres and detritusphere, as documented here, needs greater consideration when implementing interventions to improve sustainable P nutrition.
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Affiliation(s)
- Wen Fang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Paul N Williams
- Institute for Global Food Security, Queen's University Belfast, David Keir Building, Malone Road, Belfast BT9 5BN, Northern Ireland
| | - Hao Zhang
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom
| | - Yi Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Daixia Yin
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Zhaodong Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Haitao Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Jun Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
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27
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Abstract
While widespread imitation of the productivity of the land biosphere by nutrients, like nitrogen and phosphorus, was demonstrated many decades ago, representation of nutrient cycles in global land models has been relatively recent. Over the last three years, significant progress has been made in understanding some of the key processes and their representation in global land models. They include the significance of plant–microbial interaction in affecting nutrient cycles, inorganic soil phosphorus transformation, and nitrogen release from rocks. As a result, our understanding of the linkages among geology, biology, and climate controlling nutrient cycles is improving. However, progress in modelling nutrient cycles at a global scale is still confronted with large uncertainties in representing key processes owing to lack of data at the relevant scales for evaluating coupled carbon and nutrient cycles. Here we recommend two approaches to advance modelling of land nutrient cycles: the application of machine learning techniques to bridge the gap between global modelling and scattered site-level information and the use of optimality principles to identify key mechanisms driving spatial and temporal patterns of nutrients.
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Affiliation(s)
- Ying-Ping Wang
- CSIRO Oceans and Atmosphere, PMB 1, Aspendale Victoria 3195, Australia
| | - Daniel S Goll
- Université Paris Saclay, CEA-CNRS-UVSQ, LSCE/IPSL, Gif sur Yvette, France
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28
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Fan B, Fenton O, Daly K, Ding J, Chen S, Chen Q. Alum split applications strengthened phosphorus fixation and phosphate sorption in high legacy phosphorus calcareous soil. J Environ Sci (China) 2021; 101:87-97. [PMID: 33334540 DOI: 10.1016/j.jes.2020.08.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 08/09/2020] [Accepted: 08/10/2020] [Indexed: 06/12/2023]
Abstract
High phosphorus (P) saturation arising from historic P inputs to protected vegetable fields (PVFs) drives high P mobilisation to waterbodies. Amendment of soils with alum has shown potential in terms of fixing labile P and protecting water quality. The present 15 month pot experiment investigated P stabilisation across single alum application (Alum-1 treatment, 20 g alum/kg soil incorporated into soil before the maize was sown), alum split applications (Alum-4 treatment, 5 g alum/kg soil incorporated into soil before each crop was sown i.e. 4 × 5 g/kg) and soil only treatment (Control). Results showed that the Alum-1 treatment caused the strongest stabilisation of soil labile P after maize plant removal, whereas the P stabilisation effect was gradually weakened due to the transformation of soil non-labile P to labile P and the reduced active Al3+ in soil solution. For the Alum-4 treatment, soil labile P decreased gradually with each crop planting and was lower than the Alum-1 treatment at the end of the final crop removal, without any impairment on plant growth. The better P stabilisation at the end of Alum-4 treatment was closely correlated with a progressive supply of Al3+ and a gradual decrease of pH, which resulted in higher contents of poorly-crystalline Al, Fe and exchangeable Ca. These aspects were conducive to increasing the soil P stabilisation and phosphate sorption. In terms of management, growers in continuous cropping systems could utilise split alum applications as a strategy to alleviate P losses in high-P enriched calcareous soil.
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Affiliation(s)
- Bingqian Fan
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Owen Fenton
- Teagasc, Environmental Research Centre, Johnstown Castle, Co. Wexford, Ireland
| | - Karen Daly
- Teagasc, Environmental Research Centre, Johnstown Castle, Co. Wexford, Ireland
| | - Jiahui Ding
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Shuo Chen
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Qing Chen
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China.
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29
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Allafta H, Opp C, Kolli M. Combined impact of land cover, precipitation, and catchment area on discharge and phosphorus in the Mississippi basin's subcatchments. JOURNAL OF ENVIRONMENTAL QUALITY 2021; 50:198-214. [PMID: 33300123 DOI: 10.1002/jeq2.20177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
Phosphorus (P) supplies (concentrations and fluxes) are essential drivers for biological activities in rivers and should be controlled to prevent eutrophication that usually results from urbanization and agricultural expansion. In this study, data from 26 subcatchments in the Mississippi basin were compiled from 2013 to 2017 to identify how catchment area, precipitation, and land cover affect discharge and total P (TP) and how TP yield diverges from a generalized local response mode. Results revealed that area-weighted discharge (Qarea ) is controlled by precipitation and land cover (i.e., increases with precipitation and with both urban and forestland covers and decreases with both shrub/scrub and pasture/grassland covers). Total P concentration increases with agricultural land cover and decreases with both forest and water/wetland covers. Total P yield (Qarea × concentration) is governed mainly by Qarea because the latter changes by a higher order of magnitude compared with concentration in the current study. Hence, TP yield follows the same trends that Qarea exhibits with precipitation and land cover. In all catchments, TP yield varied significantly (p < .05) and positively with instantaneous discharge. However, the rate of yield variations with discharge exhibited a significant (p < .0001) strong negative (r2 = -.74) correlation with catchment area. This study provided a robust model that can predict the TP concentration and yield across different catchment scales in the Mississippi basin by means of discharge readings.
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Affiliation(s)
- Hadi Allafta
- Faculty of Geography, Philipps-Univ. of Marburg, Deutschhausstr. 10, Marburg, 35037, Germany
| | - Christian Opp
- Faculty of Geography, Philipps-Univ. of Marburg, Deutschhausstr. 10, Marburg, 35037, Germany
| | - Meena Kolli
- Faculty of Geography, Philipps-Univ. of Marburg, Deutschhausstr. 10, Marburg, 35037, Germany
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30
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Linking Soil Acidity to P Fractions and Exchangeable Base Cations under Increased N and P Fertilization of Mono and Mixed Plantations in Northeast China. FORESTS 2020. [DOI: 10.3390/f11121274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Atmospheric N deposition is increasing worldwide, especially in China, significantly affecting soil health, i.e., increasing soil acidification. The northern region of China is considered to be one of the N deposition points in Asia, ranging from 28.5 to 100.4 N ha−1yr−1. Phosphorus (P) is the limiting factor in the temperate ecosystem and an important factor that makes the ecosystem more susceptible to N-derived acidification. However, it remained poorly understood how the soil acidification process affects soil P availability and base cations in the temperate region to increased N deposition. To address this question, in May 2019, a factorial experiment was conducted under N and P additions with different plantations in Maoershan Experimental Forest Farm, Northeast China, considering species and fertilization as variables. The effective acidity (EA) increased by N and NP fertilizations but was not significantly affected by P fertilization. Similarly, the pH, base saturation percentage (BS%), calcium (Ca2+), and magnesium (Mg2+) were decreased under N addition, while the Al:Ca ratio increased, whereas NaHCO3 inorganic phosphorus (Pi) and NaOH organic phosphorus (Po) significantly decreased under N enrichments. However, NaOH Pi increased in N-enriched plots, while H2O Pi and NaHCO3 Pi increased under the P addition. Thus, the results suggest that the availability of N triggers the P dynamics by increasing the P uptake by trees. The decrease in base cations, Ca2+, and Mg2+ and increase in exchangeable Fe3+ and Al3+ ions are mainly responsible for soil acidification and lead to the depletion of soil nutrients, which, ultimately, affects the vitality and health of forests, while the P addition showed a buffering effect but could not help to mitigate the soil acidity.
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31
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Shen J, Smith AC, Claire MW, Zerkle AL. Unraveling biogeochemical phosphorus dynamics in hyperarid Mars-analogue soils using stable oxygen isotopes in phosphate. GEOBIOLOGY 2020; 18:760-779. [PMID: 32822094 DOI: 10.1111/gbi.12408] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 05/14/2020] [Accepted: 07/20/2020] [Indexed: 05/27/2023]
Abstract
With annual precipitation less than 20 mm and extreme UV intensity, the Atacama Desert in northern Chile has long been utilized as an analogue for recent Mars. In these hyperarid environments, water and biomass are extremely limited, and thus, it becomes difficult to generate a full picture of biogeochemical phosphate-water dynamics. To address this problem, we sampled soils from five Atacama study sites and conducted three main analyses-stable oxygen isotopes in phosphate, enzyme pathway predictions, and cell culture experiments. We found that high sedimentation rates decrease the relative size of the organic phosphorus pool, which appears to hinder extremophiles. Phosphoenzyme and pathway prediction analyses imply that inorganic pyrophosphatase is the most likely catalytic agent to cycle P in these environments, and this process will rapidly overtake other P utilization strategies. In these soils, the biogenic δ18 O signatures of the soil phosphate (δ18 OPO4 ) can slowly overprint lithogenic δ18 OPO4 values over a timescale of tens to hundreds of millions of years when annual precipitation is more than 10 mm. The δ18 OPO4 of calcium-bound phosphate minerals seems to preserve the δ18 O signature of the water used for biogeochemical P cycling, pointing toward sporadic rainfall and gypsum hydration water as key moisture sources. Where precipitation is less than 2 mm, biological cycling is restricted and bedrock δ18 OPO4 values are preserved. This study demonstrates the utility of δ18 OPO4 values as indicative of biogeochemical cycling and hydrodynamics in an extremely dry Mars-analogue environment.
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Affiliation(s)
- Jianxun Shen
- School of Earth and Environmental Sciences and Centre for Exoplanet Science, University of St Andrews, St Andrews, UK
| | - Andrew C Smith
- NERC Isotope Geosciences Facilities, British Geological Survey, Nottingham, UK
| | - Mark W Claire
- School of Earth and Environmental Sciences and Centre for Exoplanet Science, University of St Andrews, St Andrews, UK
| | - Aubrey L Zerkle
- School of Earth and Environmental Sciences and Centre for Exoplanet Science, University of St Andrews, St Andrews, UK
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32
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Alewell C, Ringeval B, Ballabio C, Robinson DA, Panagos P, Borrelli P. Global phosphorus shortage will be aggravated by soil erosion. Nat Commun 2020; 11:4546. [PMID: 32917863 PMCID: PMC7486398 DOI: 10.1038/s41467-020-18326-7] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 07/20/2020] [Indexed: 11/09/2022] Open
Abstract
Soil phosphorus (P) loss from agricultural systems will limit food and feed production in the future. Here, we combine spatially distributed global soil erosion estimates (only considering sheet and rill erosion by water) with spatially distributed global P content for cropland soils to assess global soil P loss. The world's soils are currently being depleted in P in spite of high chemical fertilizer input. Africa (not being able to afford the high costs of chemical fertilizer) as well as South America (due to non-efficient organic P management) and Eastern Europe (for a combination of the two previous reasons) have the highest P depletion rates. In a future world, with an assumed absolute shortage of mineral P fertilizer, agricultural soils worldwide will be depleted by between 4-19 kg ha-1 yr-1, with average losses of P due to erosion by water contributing over 50% of total P losses.
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Affiliation(s)
- Christine Alewell
- Environmental Geosciences, Department of Environmental Science, University of Basel, Basel, Switzerland.
| | - Bruno Ringeval
- ISPA, Bordeaux Sciences Agro, INRAE, 33140, Villenave d'Ornon, France
| | | | - David A Robinson
- UK Centre for Ecology & Hydrology, Environment Centre Wales, Bangor, United Kingdom
| | - Panos Panagos
- European Commission, Joint Research Centre, Ispra, Italy
| | - Pasquale Borrelli
- Environmental Geosciences, Department of Environmental Science, University of Basel, Basel, Switzerland.,Department of Biological Environment, Kangwon National University, Chuncheon-si, Gangwon-do, Republic of Korea
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33
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Zhang H, Shi L, Lu H, Shao Y, Liu S, Fu S. Drought promotes soil phosphorus transformation and reduces phosphorus bioavailability in a temperate forest. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 732:139295. [PMID: 32438146 DOI: 10.1016/j.scitotenv.2020.139295] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 05/02/2020] [Accepted: 05/07/2020] [Indexed: 06/11/2023]
Abstract
Drought can substantially alter ecosystem functions, especially biogeochemical cycles of key nutrients. As an essential but often limiting nutrient, P plays a central role in critical ecosystem processes (i.e. primary productivity). However, little is known about how drought can affect the soil phosphorus (P) cycle and its bioavailability in forest ecosystems. Here, we conducted a four-year field drought experiment using throughfall reduction approach to examine how drought can alter soil P dynamics and bioavailability in a warm temperate forest. We found that the P held in calcium phosphate was significantly decreased under drought, which was accompanied by the increases of inorganic and organic P bound with secondary minerals (Fe/Al oxides). These drought-induced P transformations can be well explained by the soil pH. The significant decline in soil pH under drought can drive the solubilization of P held in calcium phosphate. Our study further showed that drought directly decreased soil P bioavailability and altered the potential mechanisms of the replenishment of inorganic P into the soil solution. The potential of the inorganic P release driven by protons was reduced, while inorganic P release potentials driven by enzyme and organic acid were increased under drought. Therefore, our results strongly suggested that drought can significantly alter the soil P biogeochemical cycles and change the biological mechanisms underlying P bioavailability.
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Affiliation(s)
- Hongzhi Zhang
- Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, College of Environment and Planning, Henan University, Jinming Avenue, Kaifeng 475004, China; Henan Key Laboratory of Integrated Air Pollution Control and Ecological Security, Henan University, Kaifeng, Jinming Avenue, Henan 475004, China
| | - Leilei Shi
- Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, College of Environment and Planning, Henan University, Jinming Avenue, Kaifeng 475004, China; Henan Key Laboratory of Integrated Air Pollution Control and Ecological Security, Henan University, Kaifeng, Jinming Avenue, Henan 475004, China
| | - Haibo Lu
- School of Atmospheric Sciences, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou 510275, China; Key Laboratory of Forest Ecology and Environment, China's State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, No. 2 Dongxiaofu, Haidian District, Beijing 100091, China.
| | - Yuanhu Shao
- Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, College of Environment and Planning, Henan University, Jinming Avenue, Kaifeng 475004, China; Henan Key Laboratory of Integrated Air Pollution Control and Ecological Security, Henan University, Kaifeng, Jinming Avenue, Henan 475004, China.
| | - Shirong Liu
- Key Laboratory of Forest Ecology and Environment, China's State Forestry Administration, Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, No. 2 Dongxiaofu, Haidian District, Beijing 100091, China.
| | - Shenglei Fu
- Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, College of Environment and Planning, Henan University, Jinming Avenue, Kaifeng 475004, China; Henan Key Laboratory of Integrated Air Pollution Control and Ecological Security, Henan University, Kaifeng, Jinming Avenue, Henan 475004, China.
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34
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Meyer G, Bell MJ, Doolette CL, Brunetti G, Zhang Y, Lombi E, Kopittke PM. Plant-Available Phosphorus in Highly Concentrated Fertilizer Bands: Effects of Soil Type, Phosphorus Form, and Coapplied Potassium. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7571-7580. [PMID: 32657588 DOI: 10.1021/acs.jafc.0c01287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Phosphorus (P) is increasingly being applied in concentrated bands to satisfy plant nutrient requirements. To quantify changes in plant-available P in the fertosphere of highly concentrated fertilizer bands, we conducted a soil-fertilizer incubation experiment using seven soil types, three highly water-soluble P sources [monocalcium phosphate (MCP), monoammonium phosphate (MAP), and diammonium phosphate (DAP)], and coapplication of potassium chloride (KCl). First, we found that soil properties were important in influencing P availability. For a calcareous soil, availability was generally low irrespective of treatment, presumably due to precipitation of the fertilizer as Ca-P minerals. For all six noncalcareous soils, fertosphere pH was critical in determining potential P availability, with decreasing pH values decreasing availability, presumably due to precipitation of Al- and Fe-P minerals. Second, given the importance of pH, we also found that the form of P supplied (MCP, MAP, or DAP) had a pronounced effect on P availability due to associated changes in fertosphere pH. Finally, we also found that the coapplication of K also decreased P availability in some soils. We conclude that the selection of the P source is of utmost importance when fertilizers are placed as highly concentrated bands and that soil properties also need to be considered.
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Affiliation(s)
- Gregor Meyer
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Michael J Bell
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Casey L Doolette
- Future Industries Institutes, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Gianluca Brunetti
- Future Industries Institutes, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Yaqi Zhang
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Enzo Lombi
- Future Industries Institutes, University of South Australia, Mawson Lakes, South Australia 5095, Australia
| | - Peter M Kopittke
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia
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35
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Fan B, Ding J, Fenton O, Daly K, Chen Q. Understanding phosphate sorption characteristics of mineral amendments in relation to stabilising high legacy P calcareous soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114175. [PMID: 32088435 DOI: 10.1016/j.envpol.2020.114175] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 02/06/2020] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
In China, excessive phosphorus (P) application in protected vegetable fields has led to high legacy P stores. Soil amendment with alum or dolomite is one of many best management practices (BMPs) used to reduce P losses in calcareous soils. However, both the kinetics and mechanisms of P sorption and soil available P in amended soils are understudied. Herein, both aspects were looked at under controlled conditions. Firstly, a sorption study which coupled P concentrations with poorly-crystalline Al hydroxides and dolomite was conducted. Results from this batch experiment showed that P sorption on poorly-crystalline Al hydroxides was homogenous and occurred mainly via displacement of inner-sphere hydroxyl (Al-OH) instead of the formation of AlPO4. However, the amount of sorbed P reached maximum sorption of 73.1 mg g-1 and did not change with further increase in P concentration. It was observed that P adsorbed onto the dolomite surface at low P concentrations, whereas hydroxyl replacement and uneven cluster precipitation of Ca3(PO4)2 occurred at high P concentrations. A second 90 day incubation experiment investigated changes to soil available P and sorption-desorption across variable rates of amendments (0-50 g kg-1). Results showed that alum amendment at a rate of 50 g kg-1 decreased soil CaCl2-P and Olsen-P concentrations by 91.9% and 57.8%, respectively. However, Olsen-P increased when the dolomite rates were <20 g kg-1. Phosphorus sorption-desorption of the amended soil showed alum had higher P sorption efficiency than dolomite at low addition rates (<10 g kg-1). However, soil amended with high dolomite rates (>10 g kg-1) could sorb more P in comparison with alum when P concentrations were increased. The P status of the amended soil was closely connected to the P sorption mechanisms on mineral amendments, soil P concentrations and soil properties.
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Affiliation(s)
- Bingqian Fan
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Jiahui Ding
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Owen Fenton
- Teagasc, Environmental Research Centre, Johnstown Castle, Co. Wexford, Ireland
| | - Karen Daly
- Teagasc, Environmental Research Centre, Johnstown Castle, Co. Wexford, Ireland
| | - Qing Chen
- Beijing Key Laboratory of Farmyard Soil Pollution Prevention-control and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China.
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36
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Pfahler V, Bielnicka A, Smith AC, Granger SJ, Blackwell MS, Turner BL. A rapid ammonium fluoride method to determine the oxygen isotope ratio of available phosphorus in tropical soils. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8647. [PMID: 31671472 PMCID: PMC7064897 DOI: 10.1002/rcm.8647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 10/25/2019] [Accepted: 10/28/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE The isotopic composition of oxygen bound to phosphorus (δ18 OP value) offers an opportunity to gain insight into P cycling mechanisms. However, there is little information for tropical forest soils, which presents a challenge for δ18 OP measurements due to low available P concentrations. Here we report the use of a rapid ammonium fluoride extraction method (Bray-1) as an alternative to the widely used anion-exchange membrane (AEM) method for quantification of δ18 OP values of available P in tropical forest soils. METHODS We compared P concentrations and δ18 OP values of available and microbial P determined by AEM and Bray-1 extraction for a series of tropical forest soils from Panama spanning a steep P gradient. This involved an assessment of the influence of extraction conditions, including temperature, extraction time, fumigation time and solution-to-soil ratio, on P concentrations and isotope ratios. RESULTS Depending on the extraction conditions, Bray-1 P concentrations ranged from 0.2 to 66.3 mg P kg-1 across the soils. Extraction time and temperature had only minor effects on Bray-1 P, but concentrations increased markedly as the solution-to-soil ratio increased. In contrast, extraction conditions did not affect Bray-1 δ18 OP values, indicating that Bray-1 provides a robust measure of the isotopic composition of available soil P. For a relatively high P soil, available and fumigation-released (microbial) δ18 OP values determined by Bray-1 extraction (20‰ and 16‰, respectively) were higher than those determined by the AEM method (18‰ and 12‰, respectively), which we attribute to slightly different P pools extracted by the two methods and/or differences resulting from the longer extraction time needed for the AEM method. CONCLUSIONS The short extraction time, insensitivity to extraction conditions and smaller mass of soil required to extract sufficient P for isotopic analysis make Bray-1extraction a suitable alternative to the AEM method for the determination of δ18 OP values of available P in tropical soils.
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Affiliation(s)
- Verena Pfahler
- Sustainable Agriculture SciencesRothamsted ResearchNorth WykeOkehamptonEX20 2SBUK
- Smithsonian Tropical Research InstituteApartado 0843‐03092BalboaAnconRepublic of Panama
| | - Aleksandra Bielnicka
- Smithsonian Tropical Research InstituteApartado 0843‐03092BalboaAnconRepublic of Panama
| | - Andrew C. Smith
- NERC Isotope Geoscience LaboratoryBritish Geological SurveyNottinghamNG12 5GGUK
| | - Steven J. Granger
- Sustainable Agriculture SciencesRothamsted ResearchNorth WykeOkehamptonEX20 2SBUK
| | | | - Benjamin L. Turner
- Smithsonian Tropical Research InstituteApartado 0843‐03092BalboaAnconRepublic of Panama
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Aleixo S, Gama-Rodrigues AC, Gama-Rodrigues EF, Campello EFC, Silva EC, Schripsema J. Can soil phosphorus availability in tropical forest systems be increased by nitrogen-fixing leguminous trees? THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 712:136405. [PMID: 31931198 DOI: 10.1016/j.scitotenv.2019.136405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/19/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Understanding the role of N-fixing leguminous trees for phosphorus (P) cycling in highly weathered tropical soils is relevant for the conservation of natural forests as well as the sustainable management of agroforests and forest plantations with low P input in the Brazilian Atlantic Forest region. We hypothesized that N-fixing leguminous trees can increase the availability of soil P by exploiting different P sources without causing a depletion of soil organic P due to efficient biogeochemical cycling, but empirical evidence remains scarce. For this purpose, 31P nuclear magnetic resonance spectroscopy (31P NMR) was used for quantifying soil P forms and the Hedley sequential extraction to determine soil P fractions. The studied sites were forestry systems with leguminous trees: mixed forest plantations with different proportions of fast-growing N-fixing leguminous trees; pure plantations, and agroforestry systems with leguminous trees. The results show that all N-fixing leguminous trees and N mineral fertilization positively affected the concentrations of available soil P in relation to the control treatments. There were increases of all P fractions through cycling in all forest sites. 31P NMR spectra clearly identified and quantified that a large amount of phosphomonoesters followed by phosphodiesters in the form of DNA, as well as high reserves of Pi species (ortho-P and pyrophosphate) in the first eleven years of growth at pure plantations, mixed plantations or agroforests. The relations between both ortho-P and DNA with the resin-Pi, NaHCO3-Pi and NaOH-Pi fractions suggest that both analysis methods provide complementary information about the soil P transformations. Thus, the paper highlights the importance of the use of different N-fixing leguminous tree species under different environmental conditions, production systems and management practices for recovering heavily degraded areas, which may be a suitable strategy through efficient management of P in highly weathered tropical soils in the Brazilian Atlantic Forest biome.
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Affiliation(s)
- Seldon Aleixo
- Laboratório de Solos, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brazil; Grupo Metabolômica, Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brazil
| | | | | | | | - Erika Caitano Silva
- Laboratório de Solos, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brazil
| | - Jan Schripsema
- Grupo Metabolômica, Laboratório de Ciências Químicas, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, RJ, Brazil
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Schleuss PM, Widdig M, Heintz-Buschart A, Kirkman K, Spohn M. Interactions of nitrogen and phosphorus cycling promote P acquisition and explain synergistic plant-growth responses. Ecology 2020; 101:e03003. [PMID: 32020599 DOI: 10.1002/ecy.3003] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 12/11/2019] [Accepted: 01/03/2020] [Indexed: 11/10/2022]
Abstract
Plant growth is often co-limited by nitrogen (N) and phosphorus (P). Plants might use one element to acquire another (i.e., trading N for P and P for N), which potentially explains synergistic growth responses to NP addition. We studied a 66-yr-old grassland experiment in South Africa that consists of four levels of N addition with and without P addition. We investigated the response of aboveground net primary production (ANPP) to N and P addition over the last 66 yr. Further, we tested whether phosphatase activity and plant P uptake depend on N availability, and vice versa, whether non-symbiotic N2 fixation and plant N uptake depend on P availability. We expected that the interaction of both elements promote processes of nutrient acquisition and contribute to synergistic plant growth effects in response to NP addition. We found synergistic N and P co-limitation of ANPP for the period from 1951 to 2017 but the response to N and P addition diminished over time. In 2017, aboveground P stocks, relative rRNA operon abundance of arbuscular mycorrhizal fungi, and soil organic P storage increased with N fertilization rate when N was added with P compared to the treatment in which only N was added. Further, N addition increased phosphatase activity, which indicates that plants used N to acquire P from organic sources. In contrast, aboveground N stocks and non-symbiotic N2 fixation did not change significantly due to P addition. Taken together, our results indicate that trading N for P likely contributes to synergistic plant-growth response. Plants used added N to mobilize and take up P from organic sources, inducing stronger recycling of P and making the plant community less sensitive to external nutrient inputs. The latter could explain why indications of synergistic co-limitation diminished over time, which is usually overlooked in short-term nutrient addition experiments.
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Affiliation(s)
- Per Marten Schleuss
- Department of Soil Biogeochemistry, Soil Ecology, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany
| | - Meike Widdig
- Department of Soil Biogeochemistry, Soil Ecology, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany
| | - Anna Heintz-Buschart
- Department of Soil Ecology, UFZ-Helmholtz Centre for Environmental Research, Halle (Saale), Germany.,Bioinformatics Unit, German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Kevin Kirkman
- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Marie Spohn
- Department of Soil Biogeochemistry, Soil Ecology, Bayreuth Center of Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany
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Schryer A, Bradshaw K, Siciliano SD. Methodology and validation of a new tandem mass spectrometer method for the quantification of inorganic and organic 18O-phosphate species. PLoS One 2020; 15:e0229172. [PMID: 32092104 PMCID: PMC7039501 DOI: 10.1371/journal.pone.0229172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 02/01/2020] [Indexed: 11/18/2022] Open
Abstract
Phosphorus (P) fertilizers are crucial to achieve peak productivity in agricultural systems. However, the fate of P fertilizers via microorganism incorporation and the exchange processes between soil pools is not well understood. 18Oxygen-labelled phosphate (18O- Pi) can be tracked as it cycles through soil systems. Our study describes biological and geochemical P dynamics using a tandem mass spectrometry (MS/MS) method for the absolute quantification of 18O- Pi. Soil microcosms underwent three treatments: (i) 18O- Pi, (ii) unlabelled phosphate (16O- Pi) or (iii) Milli-Q control, dissolved in a bio-stimulatory solution. During a 6-week series the microcosms were sampled to measure P by Hedley sequential fractionation and DNA extraction samples digested to 3'-deoxynucleoside 5'-monophosphates (dNMP). A MS/MS attached to a HPLC analyzed each P-species through collision-induced dissociation. The resin-extractable and bicarbonate 18O- Pi and 16O- Pi fractions displayed similar precipitation and adsorption-desorption trends. Biotic activity measured in the NaOH and dNMP fractions rapidly delabelled 18O- Pi; however, the MS/MS measured some 18O that remained between the P backbone and deoxyribose sugars. After 6 weeks, the 18O- Pi had not reached the HCl soil pool, highlighting the long-term nature of P movement. Our methodology improves on previous isotopic tracking methods as endogenous P does not dilute the system, unlike 32P techniques, and measured total P is not a ratio, dissimilar from natural abundance techniques. Measuring 18O- Pi using MS/MS provides information to enhance land sustainability and stewardship practices regardless of soil type by understanding both the inorganic movement of P fertilizers and the dynamic P pool in microbial DNA.
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Affiliation(s)
- Aimée Schryer
- Department of Soil Science, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Kris Bradshaw
- Federated Co-operatives Limited, Saskatoon, Saskatchewan, Canada
| | - Steven D. Siciliano
- Department of Soil Science, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- * E-mail:
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40
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Gu C, Dam T, Hart SC, Turner BL, Chadwick OA, Berhe AA, Hu Y, Zhu M. Quantifying Uncertainties in Sequential Chemical Extraction of Soil Phosphorus Using XANES Spectroscopy. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:2257-2267. [PMID: 31922406 DOI: 10.1021/acs.est.9b05278] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sequential chemical extraction has been widely used to study soil phosphorus (P) dynamics and inform nutrient management, but its efficacy for assigning P into biologically meaningful pools remains unknown. Here, we evaluated the accuracy of the modified Hedley extraction scheme using P K-edge X-ray absorption near-edge structure (XANES) spectroscopy for nine carbonate-free soil samples with diverse chemical and mineralogical properties resulting from different degrees of soil development. For most samples, the extraction markedly overestimated the pool size of calcium-bound P (Ca-P, extracted by 1 M HCl) due to (1) P redistribution during the alkaline extractions (0.5 M NaHCO3 and then 0.1 M NaOH), creating new Ca-P via formation of Ca phosphates between NaOH-desorbed phosphate and exchangeable Ca2+ and/or (2) dissolution of poorly crystalline Fe and Al oxides by 1 M HCl, releasing P occluded by these oxides into solution. The first mechanism may occur in soils rich in well-crystallized minerals and exchangeable Ca2+ regardless of the presence or absence of CaCO3, whereas the second mechanism likely operates in soils rich in poorly crystalline Fe and Al minerals. The overestimation of Ca-P simultaneously caused underestimation of the pools extracted by the alkaline solutions. Our findings identify key edaphic parameters that remarkably influenced the extractions, which will strengthen our understanding of soil P dynamics using this widely accepted procedure.
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Affiliation(s)
- Chunhao Gu
- Department of Ecosystem Science and Management , University of Wyoming , Laramie , Wyoming 82071 , United States
| | - Than Dam
- Department of Ecosystem Science and Management , University of Wyoming , Laramie , Wyoming 82071 , United States
| | - Stephen C Hart
- Department of Life & Environmental Sciences and Sierra Nevada Research Institute , University of California , Merced , California 95343 , United States
| | - Benjamin L Turner
- Smithsonian Tropical Research Institute , Apartado 0843-03092 Balboa , Ancon , Panama
| | - Oliver A Chadwick
- Department of Geography , University of California , Santa Barbara , California 93106 , United States
| | - Asmeret Asefaw Berhe
- Department of Life & Environmental Sciences and Sierra Nevada Research Institute , University of California , Merced , California 95343 , United States
| | - Yongfeng Hu
- Canadian Light Source , University of Saskatchewan , Saskatoon , Canada S7N 0X4
| | - Mengqiang Zhu
- Department of Ecosystem Science and Management , University of Wyoming , Laramie , Wyoming 82071 , United States
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Pfahler V, Macdonald A, Mead A, Smith AC, Tamburini F, Blackwell MSA, Granger SJ. Changes of oxygen isotope values of soil P pools associated with changes in soil pH. Sci Rep 2020; 10:2065. [PMID: 32034236 PMCID: PMC7005815 DOI: 10.1038/s41598-020-59103-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 01/20/2020] [Indexed: 12/05/2022] Open
Abstract
Field data about the effect of soil pH on phosphorus (P) cycling is limited. A promising tool to study P cycling under field conditions is the 18O:16O ratio of phosphate (δ18OP). In this study we investigate whether the δ18OP can be used to elucidate the effect of soil pH on P cycling in grasslands. Soils and plants were sampled from different fertilisation and lime treatments of the Park Grass long term experiment at Rothamsted Research, UK. The soils were sequentially extracted to isolate different soil P pools, including available P and corresponding δ18OP values were determined. We did not observe changes in plant δ18OP value, but soil P δ18OP values changed, and lower δ18OP values were associated with higher soil pH values. At sites where P was not limiting, available P δ18OP increased by up to 3‰ when lime was applied. We show that the δ18OP method is a useful tool to investigate the effect of pH on soil P cycling under field conditions as it highlights that different soil processes must govern P availability as pH shifts. The next challenge is now to identify these underlying processes, enabling better management of soil P at different pH.
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Affiliation(s)
- Verena Pfahler
- Rothamsted Research, Sustainable Agriculture Sciences North Wyke, Okehampton, Devon, EX20 2SB, UK.
| | - Andy Macdonald
- Rothamsted Research, Sustainable Agriculture Sciences Harpenden, Harpenden, Hertfordshire, AL5 2JQ, UK
| | - Andrew Mead
- Rothamsted Research, Computational and Analytical Sciences, Harpenden, Hertfordshire, AL5 2JQ, UK
| | - Andrew C Smith
- NERC Isotope Geoscience Laboratory, British Geological Survey, Nottingham, NG12 5GG, UK
| | - Federica Tamburini
- Department of Environmental System Sciences, ETH Zurich, Eschikon 33, 8315, Lindau, Switzerland
| | - Martin S A Blackwell
- Rothamsted Research, Sustainable Agriculture Sciences North Wyke, Okehampton, Devon, EX20 2SB, UK
| | - Steven J Granger
- Rothamsted Research, Sustainable Agriculture Sciences North Wyke, Okehampton, Devon, EX20 2SB, UK
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42
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Ge X, Wang L, Zhang W, Putnis CV. Molecular Understanding of Humic Acid-Limited Phosphate Precipitation and Transformation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:207-215. [PMID: 31822060 DOI: 10.1021/acs.est.9b05145] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Phosphorus (P) availability is widely assumed to be limited by the formation of metal (Ca, Fe, or Al) phosphate precipitates that are modulated by soil organic matter (SOM), but the SOM-precipitate interactions remain uncertain because of their environmental complexities. Here, we present a model system by quantifying the in situ nanoscale nucleation kinetics of calcium phosphates (Ca-Ps) on mica in environmentally relevant aqueous solutions by liquid-cell atomic force microscopy. We find that Ca-P precipitate formation is slower when humic acid (HA) concentration is higher. High-resolution transmission electron microscopy observations demonstrate that HA strongly stabilizes amorphous calcium phosphate (ACP), delaying its subsequent transformation to thermodynamically more stable phases. Consistent with the formation of molecular organo-mineral bonding, dynamic force spectroscopy measurements display larger binding energies of organic ligands with certain chemical functionalities on HA to the initially formed ACP than to mica that are responsible for stabilization of ACP through stronger HA-ACP interactions. Our results provide direct evidence for the proposed importance of SOM in inhibiting Ca-P precipitation/transformation. We suggest that similar studies of binding strength in SOM-Fe/Al-P may reveal how both organic matter and metal ions control P availability and fate, and thus the eventual P management for agronomical and environmental sustainability.
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Affiliation(s)
- Xinfei Ge
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Lijun Wang
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenjun Zhang
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Christine V Putnis
- Institut für Mineralogie, University of Münster, Münster 48149, Germany
- Department of Chemistry, Curtin University, Perth 6845, Australia
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43
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Sun M, Li H, Jaisi DP. Degradation of glyphosate and bioavailability of phosphorus derived from glyphosate in a soil-water system. WATER RESEARCH 2019; 163:114840. [PMID: 31319360 DOI: 10.1016/j.watres.2019.07.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 06/07/2019] [Accepted: 07/03/2019] [Indexed: 05/09/2023]
Abstract
Glyphosate, the most commonly used herbicide in the world, can be degraded into more toxic and persistent products such as aminomethylphosphonic acid (AMPA) or non-toxic products such as sarcosine and glycine. In this study, we used liquid chromatography mass spectrometry (LC-MS) and electrospray ionization (ESI) source Q Extractive Orbitrap mass spectrometry (ESI-Orbitrap MS) to identify glyphosate degradation products and combined with sequential extraction and stable isotopes to investigate the degradation of glyphosate and transformation of phosphorous (P) product in a soil-water system. The LC-MS and ESI-Orbitrap MS results showed that glycine formed during the early stage but was rapidly utilized by soil microorganisms. AMPA started to accumulate at the late stage and was found to be 3-6 times more resistant than glyphosate against degradation; while no sarcosine was formed. The 18O labeling and phosphate oxygen isotope results allowed a clear distinction of the fraction of inorganic P (Pi) derived from glyphosate, about half of which was then rapidly taken up and recycled by soil microorganisms. Our results provide the first evidence of the preferential utilization of glyphosate-derived Pi by microorganisms in the soil-water system. The rapid cycling of Pi derived from this disregarded source has important implications on nutrient management as well as water quality.
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Affiliation(s)
- Mingjing Sun
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, 19716, USA
| | - Hui Li
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, 19716, USA
| | - Deb P Jaisi
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, 19716, USA.
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Ippolito JA, Bjorneberg DL, Blecker SW, Massey MS. Mechanisms Responsible for Soil Phosphorus Availability Differences between Sprinkler and Furrow Irrigation. JOURNAL OF ENVIRONMENTAL QUALITY 2019; 48:1370-1379. [PMID: 31589736 DOI: 10.2134/jeq2019.01.0016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
From a historical perspective, human-induced soil erosion and resulting soil phosphorus (P) losses have likely occurred for thousands of years. In modern times, erosion risk and off-site P transport can be decreased if producers convert from furrow to sprinkler irrigation, but conversion may alter nutrient dynamics. Our study goal was to determine soil P dynamics in furrow- (in place since the early 1900s) versus sprinkler-irrigated (installed within the last decade) soils from four paired producer fields in Idaho. Furrow- and sprinkler-irrigated soils (0-5 cm; Aridisols) contained on average 38 and 20 mg kg of Olsen-extractable P (i.e., plant-available P), respectively; extractable P values over 40 mg kg limit Idaho producers to P application based on crop uptake only. Soil samples were also analyzed using a modified Hedley extraction. Furrow-irrigated soils contained greater inorganic P concentrations in the soluble+aluminum (Al)-bound+iron (Fe)-bound, occluded, and amorphous Fe-bound pools. Phosphorus -edge X-ray absorption near-edge structure (XANES) spectroscopy was unable to detect Fe-associated P but indicated greater amounts of apatite-like or octacalcium phosphate-like P in furrow-irrigated producer soils, while sprinkler-irrigated fields had lower amounts of apatite-like P and greater proportions of P bound to calcite. Findings from a controlled USDA-ARS sprinkler- versus furrow-irrigation study suggested that changes in P dynamics occur slowly over time, as few differences were observed. Overall findings suggest that Fe redox chemistry or changes in calcium (Ca)-associated P in flooded conditions altered P availability under furrow irrigation, even in aridic, calcareous soils, contributing to greater Olsen-extractable P concentrations in long-term furrow-irrigated fields.
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Ishida T, Uehara Y, Iwata T, Cid-Andres AP, Asano S, Ikeya T, Osaka K, Ide J, Privaldos OLA, Jesus IBBD, Peralta EM, Triño EMC, Ko CY, Paytan A, Tayasu I, Okuda N. Identification of Phosphorus Sources in a Watershed Using a Phosphate Oxygen Isoscape Approach. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:4707-4716. [PMID: 30938522 DOI: 10.1021/acs.est.8b05837] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Identifying nonpoint phosphorus (P) sources in a watershed is essential for addressing cultural eutrophication and for proposing best-management solutions. The oxygen isotope ratio of phosphate (δ18OPO4) can shed light on P sources and P cycling in ecosystems. This is the first assessment of the δ18OPO4 distribution in a whole catchment, namely, the Yasu River Watershed in Japan. The observed δ18OPO4 values in the river water varied spatially from 10.3‰ to 17.6‰. To identify P sources in the watershed, we used an isoscape approach involving a multiple-linear-regression model based on land use and lithological types. We constructed two isoscape models, one using data only from the whole watershed and the other using data from the small tributaries. The model results explain 69% and 96% of the spatial variation in the river water δ18OPO4. The lower R2 value for the whole watershed model is attributed to the relatively large travel time for P in the main stream of the lower catchment that can result in cumulative biological P recycling. Isoscape maps and a correlation analysis reveal the relative importance of P loading from paddy fields and bedrock. This work demonstrates the utility of δ18OPO4 isoscape models for assessing nonpoint P sources in watershed ecosystems.
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Affiliation(s)
- Takuya Ishida
- Research Institute for Humanity and Nature , 457-4, Motoyama , Kamigamo, Kyoto , 603-8047 , Japan
| | - Yoshitoshi Uehara
- Research Institute for Humanity and Nature , 457-4, Motoyama , Kamigamo, Kyoto , 603-8047 , Japan
| | - Tomoya Iwata
- Faculty of Life and Environmental Science , University of Yamanashi , 4-4-37, Takeda , Kofu , Yamanashi 400-8510 , Japan
| | - Abigail P Cid-Andres
- Department of Physical Sciences, College of Science , Polytechnic University of the Philippines , Anonas Street. Sta. Mesa , Manila 1016 , Philippines
| | - Satoshi Asano
- Lake Biwa Environment Research Institute , 5-34, Yanagasaki , Ohtsu , Shiga 520-0022 , Japan
| | - Tohru Ikeya
- Research Institute for Humanity and Nature , 457-4, Motoyama , Kamigamo, Kyoto , 603-8047 , Japan
| | - Ken'ichi Osaka
- School of Environmental Sciences , The University of Shiga Prefecture , 2500, Hasaka , Hikone , Shiga 522-8533 , Japan
| | - Jun'ichiro Ide
- Institute of Decision Science for a Sustainable Society , Kyushu University , 394, Tsubakuro , Sasaguri , Fukuoka 811-2415 , Japan
| | - Osbert Leo A Privaldos
- Laguna Lake Development Authority , National Ecology Center , East Avenue, Diliman , Quezon City , 1101 , Philippines
| | | | - Elfritzson M Peralta
- The Graduate School , University of Santo Tomas , España Boulevard , Manila 1015 , Philippines
| | - Ellis Mika C Triño
- The Graduate School , University of Santo Tomas , España Boulevard , Manila 1015 , Philippines
| | - Chia-Ying Ko
- Institute of Fisheries Science & Department of Life Science , National Taiwan University , No. 1, Sec. 4, Roosevelt Road , Taipei 10617 , Taiwan
| | - Adina Paytan
- Institute of Marine Sciences , University of California Santa Cruz , 1156 High Street , Santa Cruz , California 95064 , United States
| | - Ichiro Tayasu
- Research Institute for Humanity and Nature , 457-4, Motoyama , Kamigamo, Kyoto , 603-8047 , Japan
| | - Noboru Okuda
- Research Institute for Humanity and Nature , 457-4, Motoyama , Kamigamo, Kyoto , 603-8047 , Japan
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Abiotic phosphorus recycling from adsorbed ribonucleotides on a ferrihydrite-type mineral: Probing solution and surface species. J Colloid Interface Sci 2019; 547:171-182. [PMID: 30954001 DOI: 10.1016/j.jcis.2019.03.086] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 03/23/2019] [Accepted: 03/25/2019] [Indexed: 01/21/2023]
Abstract
Iron (Fe) (oxyhydr)oxide minerals, which are amongst most reactive minerals in soils and sediments, are known to exhibit strong adsorption of inorganic phosphate (Pi) and organophosphate (Po) compounds. Beyond synthetic Po compounds, much still remains unknown about the reactivity of these minerals to transform naturally-occurring Po compounds to Pi, particularly with respect to solution versus surface speciation of Po hydrolysis. To investigate this reactivity with a ferrihydrite-type mineral and ribonucleotides, we employed high-resolution liquid chromatography-mass spectrometry (LC-MS), X-ray absorption near-edge structure (XANES), Fourier-transform infrared (FTIR) spectroscopy, and molecular modeling. Kinetic experiments were conducted with the mineral (1 g L-1) reacted with adenosine monophosphate, diphosphate, or triphosphate (respectively AMP, ADP, ATP; 50 µM). Analysis of solution organic species by LC-MS implied that only adsorption occurred with AMP and ADP but both adsorption and dephosphorylation of ATP were evident. Maximum adsorption capacities per gram of mineral were 40.6 ± 0.8 µmol AMP, 35.7 ± 1.6 µmol ADP, and 10.9 ± 1.0 µmol ATP; solution dephosphorylated by-products accounted for 15% of initial ATP. Subsequent XANES analysis of the surface species revealed that 16% of adsorbed AMP and 30% of adsorbed ATP were subjected to dephosphorylation, which was not fully quantifiable from the solution measurements. Molecular simulations predicted that ADP and ATP were complexed mainly via the phosphate groups whereas AMP binding also involved multiple hydrogen bonds with the adenosine moiety; our FTIR data confirmed these binding confirmations. Our findings thus imply that specific adsorption mechanisms dictate the recycling and subsequent trapping of Pi from ribonucleotide-like biomolecules reacted with Fe (oxyhydr)oxide minerals.
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Laboratory Visible and Near-Infrared Spectroscopy with Genetic Algorithm-Based Partial Least Squares Regression for Assessing the Soil Phosphorus Content of Upland and Lowland Rice Fields in Madagascar. REMOTE SENSING 2019. [DOI: 10.3390/rs11050506] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
As a laboratory proximal sensing technique, the capability of visible and near-infrared (Vis-NIR) diffused reflectance spectroscopy with partial least squares (PLS) regression to determine soil properties has previously been demonstrated. However, the evaluation of the soil phosphorus (P) content—a major nutrient constraint for crop production in the tropics—is still a challenging task. PLS regression with waveband selection can improve the predictive ability of a calibration model, and a genetic algorithm (GA) has been widely applied as a suitable method for selecting wavebands in laboratory calibrations. To develop a laboratory-based proximal sensing method, this study investigated the potential to use GA-PLS regression analyses to estimate oxalate-extractable P in upland and lowland soils from laboratory Vis-NIR reflectance data. In terms of predictive ability, GA-PLS regression was compared with iterative stepwise elimination PLS (ISE-PLS) regression and standard full-spectrum PLS (FS-PLS) regression using soil samples collected in 2015 and 2016 from the surface of upland and lowland rice fields in Madagascar (n = 103). Overall, the GA-PLS model using first derivative reflectance (FDR) had the best predictive accuracy (R2 = 0.796) with a good prediction ability (residual predictive deviation (RPD) = 2.211). Selected wavebands in the GA-PLS model did not perfectly match wavelengths of previously known absorption features of soil nutrients, but in most cases, the selected wavebands were within 20 nm of previously known wavelength regions. Bootstrap procedures (N = 10,000 times) using selected wavebands also confirmed the improvements in accuracy and robustness of the GA-PLS model compared to those of the ISE-PLS and FS-PLS models. These results suggest that soil oxalate-extractable P can be predicted from Vis-NIR spectroscopy and that GA-PLS regression has the advantage of tuning optimum bands for PLS regression, contributing to a better predictive ability.
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Massey MS. X-Ray Spectroscopic Quantification of Struvite and Dittmarite Recovered from Wastewater. JOURNAL OF ENVIRONMENTAL QUALITY 2019; 48:193-198. [PMID: 30640358 DOI: 10.2134/jeq2018.08.0287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Phosphorus recovery from wastewater as struvite (MgNHPO⋅6HO) or dittmarite (MgNHPO⋅HO) can decrease water pollution risk, as well as produce a P-rich material suitable as fertilizer. However, most studies to date have focused on the removal of P from wastewater, rather than on characterization of the recovered P materials. The objective of this work was to apply microfocused X-ray fluorescence (XRF) spectroscopy, and both bulk and microfused X-ray absorption near edge structure (XANES) spectroscopy, to provide insight into the speciation of recovered P in various struvite-containing and struvite-like materials. Three materials were investigated: homogeneous crystalline struvite on apatite seed, homogeneous dittmarite, and heterogeneous struvite with sand contamination (referred to as the "sandy" material). The struvite materials were recovered from dairy wastewater, whereas the dittmarite was from a cheese processing plant. Phosphorus speciation in the crystalline struvite on apatite seed material was ∼17% apatite and 83% struvite; in the "sandy" material, P was ∼24% apatite and ∼76% struvite, with an uncertainty of approximately ±15%. The P -edge XANES spectra of recovered dittmarite appeared pure. These findings highlight the heterogeneity of recovered P materials and underscore the importance of P speciation to understand P release behavior and bioavailability from recovered phosphates.
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