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Li H, Song X, Wu D, Wei D, Ju X. Digestate induces significantly higher N 2O emission compared to urea under different soil properties and moisture. ENVIRONMENTAL RESEARCH 2024; 241:117617. [PMID: 37967706 DOI: 10.1016/j.envres.2023.117617] [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: 07/12/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/17/2023]
Abstract
Digestate is considered as an option for recycling resources and a part of the substitution for chemical fertilizers to reduce environmental impacts. However, its application may lead to significant nitrous oxide (N2O) emissions because of its high concentration of ammonium and degradable carbon. The research objectives are to evaluate how N2O emissions respond to digestate as compared to urea application and whether this depends on soil properties and moisture. Either digestate or urea (100 mg N kg-1) was applied with and without a nitrification inhibitor of 3,4-dimethylpyrazole phosphate (DMPP) to three soil types (fluvo-aquic soil, black soil, and latosol) under three different soil moisture conditions (45, 65, and 85% water-filled pore space (WFPS)) through microcosm incubations. Results showed that digestate- and urea-induced N2O emissions increased exponentially with soil moisture in the three studied soils, and the magnitude of the increase was much greater in the alkaline fluvo-aquic soil, coinciding with high net nitrification rate and transient nitrite accumulation. Compared with urea-amended soils, digestate led to significantly higher peaks in N2O and carbon dioxide (CO2) emissions, which might be due to stimulated rapid oxygen consumption and mineralized N supply. Digestate-induced N2O emissions were all more than one time higher than those induced by urea at the three moisture levels in the three studied soils, except at 85% WFPS in the fluvo-aquic soil. DMPP was more effective at mitigating N2O emissions (inhibitory efficacy: 73%-99%) in wetter digestate-fertilized soils. Overall, our study shows the contrasting effect of digestate to urea on N2O emissions under different soil properties and moisture levels. This is of particular value for determining the optimum of applying digestate under varying soil moisture conditions to minimize stimulated N2O emissions in specific soil properties.
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Affiliation(s)
- Haoruo Li
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China; College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiaotong Song
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Di Wu
- College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Dan Wei
- Institute of Plant Nutrition, Resources and Environment, Beijing Academy of Agricultural and Forestry Sciences, Beijing, 100097, China
| | - Xiaotang Ju
- College of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China.
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Zhang Q, Chen M, Leng Y, Wang X, Fu Y, Wang D, Zhao X, Gao W, Li N, Chen X, Fan C, Li Q. Organic substitution stimulates ammonia oxidation-driven N 2O emissions by distinctively enriching keystone species of ammonia-oxidizing archaea and bacteria in tropical arable soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 872:162183. [PMID: 36804975 DOI: 10.1016/j.scitotenv.2023.162183] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/01/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Partial organic substitution (POS) is pivotal in enhancing soil productivity and changing nitrous oxide (N2O) emissions by profoundly altering soil nitrogen (N) cycling, where ammonia oxidation is a fundamental core process. However, the regulatory mechanisms of N2O production by ammonia oxidizers at the microbial community level under POS regimes remain unclear. This study explored soil ammonia oxidation and related N2O production, further building an understanding of the correlations between ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) activity and community structure in tropical arable soils under four-year field management regimes (CK, without fertilizer N; N, with only inorganic N; M1N1, with 1/2 organic N + 1/2 inorganic N; M1N2, with 1/3 organic N + 2/3 inorganic N). AOA contributed more to potential ammonia oxidation (PAO) than AOB across all treatments. In comparison with CK, N treatment had no obvious effects on PAO and lowered related N2O emissions by decreasing soil pH and downregulating the abundance of AOA- and AOB-amoA. POS regimes significantly enhanced PAO and N2O emissions relative to N treatment by promoting the abundances and contributions of AOA and AOB. The stimulated AOA-dominated N2O production under M1N1 was correlated with promoted development of Nitrososphaera. By contrast, the increased AOB-dominated N2O production under M1N2 was linked to the enhanced development of Nitrosospira multiformis. Our study suggests organic substitutions with different proportions of inorganic and organic N distinctively regulate the development of specific species of ammonia oxidizers to increase associated N2O emissions. Accordingly, appropriate options should be adopted to reduce environmental risks under POS regimes in tropical croplands.
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Affiliation(s)
- Qi Zhang
- College of Ecology and Environment, Hainan University, Haikou 570228, China; Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Miao Chen
- Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Danzhou 571737, China; Key Laboratory of Green and Low Carbon Agriculture in Tropical China, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
| | - Youfeng Leng
- Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; College of Eco-environment Engineering, Guizhou Minzu University, Guiyang 550025, China
| | - Xiaotong Wang
- College of Ecology and Environment, Hainan University, Haikou 570228, China; Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Yajun Fu
- College of Ecology and Environment, Hainan University, Haikou 570228, China; Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Danfeng Wang
- Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiongwei Zhao
- College of Ecology and Environment, Hainan University, Haikou 570228, China; Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Wenlong Gao
- Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Danzhou 571737, China; Key Laboratory of Green and Low Carbon Agriculture in Tropical China, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
| | - Ning Li
- Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Danzhou 571737, China; Key Laboratory of Green and Low Carbon Agriculture in Tropical China, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
| | - Xin Chen
- Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Danzhou 571737, China; Key Laboratory of Green and Low Carbon Agriculture in Tropical China, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
| | - Changhua Fan
- Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Danzhou 571737, China; Key Laboratory of Green and Low Carbon Agriculture in Tropical China, Ministry of Agriculture and Rural Affairs, Haikou 571101, China.
| | - Qinfen Li
- Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Hainan Danzhou Tropical Agro-ecosystem National Observation and Research Station, Danzhou 571737, China; Key Laboratory of Green and Low Carbon Agriculture in Tropical China, Ministry of Agriculture and Rural Affairs, Haikou 571101, China.
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de Lima GG, Matos M, de Sá FP, Mashiba LN, Magalhães WLE, Rachwal MFG, Zanatta JA. Supraparticles as slow-release fertiliser in seedling potential growth of Eucalyptus urograndis and greenhouse gas flux impacts. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:23047-23059. [PMID: 36316547 DOI: 10.1007/s11356-022-23845-5] [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: 11/26/2021] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
Slow-release urea fertilisers have been shown to present acceptable values for plant yield and mitigate the harmful effect of soil emission gases. This study synthesises a slow-release fertiliser containing fumed-nanosilica, nanofibrillated cellulose as well as sodium alginate as a urea carrier to analyse the growth parameters of Eucalyptus urograndis seedlings and potential emission of soil gases, N2O, CH4, CO2 and ammonia volatilisation. The developed supraparticles, arranged layered nanoparticle structure, presented a decrease in the normal nitrogen content of urea of 19%, which is attributed to the binding of this element. A good electrostatic interaction between the elements was confirmed by the FTIR with 20% of nitrogen content from its chemical composition and an increase in thermal degradation of the main components when synthesised. The profile of urea release presented to be as first-order with 85% of this compound was released only after 60 days. These characteristics led to statistically increased growth of Eucalyptus seedlings compared to the controls, which improves with higher dosages of urea. Values of biomass and characteristics of the plant were used for principal component analysis which resulted in good cluster formation based on the upward concentration of urea added to the plant. Nevertheless, flux gases were statistically higher for certain time periods on lower urea particle concentration, while increased concentration presented N2O emissions within standard rates with no significant variation in the other measured gases, which was attributed to the soil microbial targeted consumption. Therefore, this material can be beneficial in the agriculture industry.
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Affiliation(s)
- Gabriel Goetten de Lima
- Programa de Pós-Graduação Em Engenharia E Ciência Dos Materiais - PIPE, Universidade Federal Do Paraná, Curitiba, Paraná, Brazil.
- Materials Research Institute, Technological University of the Shannon: Midlands Midwest, Athlone, Ireland.
| | - Mailson Matos
- Programa de Pós-Graduação Em Engenharia E Ciência Dos Materiais - PIPE, Universidade Federal Do Paraná, Curitiba, Paraná, Brazil
| | | | | | - Washington L E Magalhães
- Programa de Pós-Graduação Em Engenharia E Ciência Dos Materiais - PIPE, Universidade Federal Do Paraná, Curitiba, Paraná, Brazil
- Embrapa Florestas, Colombo, Brazil
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Zhang G, Song K, Huang Q, Zhu X, Gong H, Ma J, Xu H. Heavy metal pollution and net greenhouse gas emissions in a rice-wheat rotation system as influenced by partial organic substitution. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 307:114599. [PMID: 35092887 DOI: 10.1016/j.jenvman.2022.114599] [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: 10/06/2021] [Revised: 01/20/2022] [Accepted: 01/23/2022] [Indexed: 06/14/2023]
Abstract
Substituting nitrogen fertilizer with organic manure is a common fertilization practice in farmland, but its potential effect on heavy metal pollution and greenhouse gas (GHG) emissions remains unclear. A three-year field experiment was conducted in the rice-wheat rotation system, with two different substitution ratios (25% and 50%) of sewage sludge compost (SS) and pig manure compost (PM). With the substitutions of SS and PM, the heavy metals, including Cu, Zn, Cd, and Pb were accumulated in the soil, but the pollution load index was <1 (0.39-0.66), indicating that soil was not polluted. Heavy metals Ni and Cu were mainly found in rice chaff, while Zn and Cd were accumulated in rice stalk, and the accumulation of Pb occurred in the leaf. For wheat, Ni, Cu, and Pb were accumulated in chaff, while grain and stalk had the highest concentrations of Zn and Cd, respectively. Moreover, the bioconcentration factor of heavy metals was 0-0.787, and their contents were below the standard limits for foods for rice and wheat in China, implying that the grains were unpolluted. Given the 5-8 fold increase in the sequestration rate of soil organic carbon with SS and PM substitutions, the annual net GHG emissions were reduced by 115-166%. Most importantly, 50% SS substitution exhibited the lowest net GHG emissions and highest rice and wheat yields. Overall, the results suggested that 50% SS substitution would be a feasible fertilization strategy that not only is unlikely to pose a high risk of soil and grain pollution but also significantly mitigates net GHG emissions and maintains high yields.
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Affiliation(s)
- Guangbin Zhang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Kaifu Song
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiong Huang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoli Zhu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hua Gong
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Jing Ma
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Hua Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
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Liang F, Wen Y, Dong X, Wang Y, Pan G, Jiang F, Luo H, Jin W, Wang J, Song H. Response of activity and community composition of nitrite-oxidizing bacteria to partial substitution of chemical fertilizer by organic fertilizer. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:29332-29343. [PMID: 33559074 DOI: 10.1007/s11356-020-12038-7] [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: 09/20/2020] [Accepted: 12/08/2020] [Indexed: 06/12/2023]
Abstract
Nitrite oxidation as the second step of nitrification can become the determining step in disturbed soil systems. As a beneficial fertilization practice to maintain high crop yield and soil fertility, partial substitution of chemical fertilizer (CF) by organic fertilizer (OF) may exert a notable disturbance to soil systems. However, how nitrite oxidation responds to different proportions of CF to OF is still unclear. We sampled soils from a 4-year field experiment subject to a gradient of increasing proportions of OF to CF application. Activity, size, and structure of Nitrospira-like and Nitrobacter-like nitrite-oxidizing bacteria (NOB) community were measured. The results revealed that with increasing proportion of OF to CF application, potential nitrite oxidation activity (PNO) showed a marked decreasing trend. PNO was significantly correlated with the abundance of Nitrobacter-like but not Nitrospira-like NOB. The abundance of Nitrobacter-like was significantly influenced by soil organic matter, organic nitrogen (N), and available N. In addition, PNO was also affected by the structure of Nitrobacter-like NOB. The relative abundance of Nitrobacter hamburgensis, alkalicus, winogradskyi, and vulgaris responded differently to the proportions of OF to CF application. Organic N, organic matter, and available N were the main factor shaping their community structure. Overall, Nitrobacter-like NOB is more sensitive and plays a more important role than Nitrospira-like NOB in responding to different proportions of OF to CF application.
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Affiliation(s)
- Fei Liang
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Yongkang Wen
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Xiao Dong
- School of Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Yiyao Wang
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Guangyuan Pan
- Anhui General Station for Agricultural Technology Extension, Hefei, 230001, China
| | - Fangying Jiang
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Huaying Luo
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Wenjun Jin
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - Jun Wang
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China
| | - He Song
- College of Agronomy, Anhui Agricultural University, Hefei, 230036, China.
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Liu X, Tang Z, Zhang Q, Kong W. The contrasting effects of biochar and straw on N 2O emissions in the maize season in intensively farmed soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:29806-29819. [PMID: 33566298 DOI: 10.1007/s11356-021-12722-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
This study evaluated the combined effects of biochar and straw on N2O flux and the community compositions of nitrifiers and denitrifiers in the maize season in an intensively farmed area in northern China. The experiment consisted of four treatments: (1) CK (only chemical fertilizer application); (2) C (biochar application); (3) SR (straw application to the field); and (4) C+SR (the application of both biochar and straw). The results indicated that during the maize growing season, N2O flux decreased by 30.3% in the C treatment and increased by 13.2% and 37.0% in the SR and C+SR treatments compared with CK, respectively. NO3--N, NH4+-N, and microbial biomass carbon (MBC) were the main soil factors affecting N2O flux, and they were positively correlated with NO3--N and negatively correlated with MBC in the C treatment and positively correlated with NH4+-N in the SR and C+SR treatments. Both biochar addition and straw return shifted the community compositions of nitrifiers and denitrifiers. N2O production was mainly reduced by promoting the ammonia-oxidizing bacteria (AOB) gene abundance and inhibiting the nirK gene abundance in the C treatment but promoted by inhibiting the AOB and nosZ gene abundances in the SR and C+SR treatments. Nitrosospira (AOB) and Rhizobium (nirK) were the main contributors among the treatments. NO3--N, NH4+-N, and MBC were the main soil factors affecting the denitrifier communities. The predominant species associated with the nirK, nirS, and nosZ genes were positively correlated with NO3--N and MBC and negatively correlated with NH4+-N. These results provide valuable information on the mechanism of N2O production and reduction in biochar- and straw-amended soil under field conditions.
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Affiliation(s)
- Xingren Liu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Zhanming Tang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Qingwen Zhang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Weidong Kong
- Key Laboratory of Alpine Ecology, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China.
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Wu L, Li Z, Zhao F, Zhao B, Phillip FO, Feng J, Liu H, Yu K. Increased Organic Fertilizer and Reduced Chemical Fertilizer Increased Fungal Diversity and the Abundance of Beneficial Fungi on the Grape Berry Surface in Arid Areas. Front Microbiol 2021; 12:628503. [PMID: 34025598 PMCID: PMC8139630 DOI: 10.3389/fmicb.2021.628503] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/12/2021] [Indexed: 01/23/2023] Open
Abstract
Fertilizer practices can significantly impact the fruit quality and microbial diversity of the orchards. The fungi on the surface of fruits are essential for fruit storability and safety. However, it is not clear whether fertilization affects the fungal diversity and community structure on the surface of grape berries. Here, grape quality and the fungal diversity on the surface of grapes harvested from three fertilizer treatments were analyzed shortly after grape picking (T0) and following 8 days of storage (T1). The study involved three treatments: (1) common chemical fertilizer for 2 years (CH); (2) increased organic fertilizer and reduced chemical fertilizer for 1 year (A.O); and (3) increased organic fertilizer and reduced chemical fertilizer for 2 years (B.O). The application of increased organic fertilizer and reduced chemical fertilizer increased the soluble solids content (SSC) of the grape berries and decreased the pH of the grape juice. A total of 827,947 high-quality fungal sequences were recovered and assigned to 527 operational taxonomic units. Members of the Ascomycota phylum were dominant in all samples and accounted for 94.41% of the total number of detected sequences, followed by the Basidiomycota (5.05%), and unidentified fungi (0.54%). Alpha and beta diversity analyses revealed significantly different fungal populations in the three fertilizer treatments over the two time periods. The fungal diversity and richness on the grape berry surface in the B.O and A.O treatments were higher than those in the CH treatment. Among the detected fungi, the B.O treatments were mainly Pichia, Aureobasidium, and Candida genera, while the CH treatments were Botrytis, Aspergillus, and Penicillium. Moreover, significant differences were revealed between the two assessment times (T0 and T1). The samples from the T0 timepoint had higher fungal richness and diversity than the samples from T1 timepoint. Increasing organic fertilizer usage in grape management could improve grape quality and went on to increase the fungal diversity, as well as the relative abundance (RA) of beneficial fungi on grape berry surfaces. The correlation analysis suggested that the pH of the grape juice was significantly negatively correlated with fungal diversity parameters.
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Affiliation(s)
- Linnan Wu
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Zhiqiang Li
- Shihezi Academy of Agricultural Sciences, Shihezi, China
| | - Fengyun Zhao
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Benzhou Zhao
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Fesobi Olumide Phillip
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Jianrong Feng
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Huaifeng Liu
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
| | - Kun Yu
- Department of Horticulture, College of Agriculture, The Key Laboratory of Characteristics of Fruit and Vegetable Cultivation and Utilization of Germoplasm Resources of the Xinjiang Production and Construction Crops, Shihezi University, Shihezi, China
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Mao Y, Zhang H, Tang W, Zhao J, Wang Z, Fan A. Net anthropogenic nitrogen and phosphorus inputs in Pearl River Delta region (2008-2016). JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 282:111952. [PMID: 33461089 DOI: 10.1016/j.jenvman.2021.111952] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/28/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
Excess inputs of nitrogen (N) and phosphorus (P) are the main contributors of aquatic environmental deterioration. Due to the agricultural and industrial activities in the rapidly urbanized basin, the anthropogenic N and P cycle are significantly different from other regions. In this study, we took the Pearl River Delta as an example and introduced the budget list of N and P in the five survey years, including the net anthropogenic N inputs (NANI) and net anthropogenic P inputs (NAPI). The results revealed that the intensities of NANI and NAPI in this area increased from 2008 to 2010 and then decreased after 2010. The peak values were 21001 kg N km-2yr-1 and 4515 kg P km-2yr-1 for the intensities of NNAI and NAPI, respectively, while the lowest values decreased to 19186 kg N km-2yr-1 and 4103 kg P km-2yr-1 in 2016. The most important contribution of NANI and NAPI sources in this area were net N and P inputs for human food and animal feed with an average contribution of 61.41% and 76.83%, which indicated that large amounts of N and P were introduced into the environment through the food system. This study expanded the knowledge on regional environmental management from human dietary consumption, human life consumption, animal consumption and fertilizer consumption. Its reuse will be put into practice by understanding the driving factors of N and P inputs in each region of the basin, combining the urbanization characteristics.
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Affiliation(s)
- Yupeng Mao
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; 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, PR China; University of Chinese Academy of Science, Beijing, 100049, PR China
| | - Hong Zhang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Science, Beijing, 100049, PR China.
| | - Wenzhong Tang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Science, Beijing, 100049, PR China.
| | - Jianwei Zhao
- 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, PR China
| | - Zhipeng Wang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Science, Beijing, 100049, PR China
| | - Aoxiang Fan
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Science, Beijing, 100049, PR China; College of the Environment, China University of Geosciences, Wuhan, 430074, PR China
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