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Song Y, Cheng X, Song C, Li M, Gao S, Liu Z, Gao J, Wang X. Soil CO 2 and N 2O emissions and microbial abundances altered by temperature rise and nitrogen addition in active-layer soils of permafrost peatland. Front Microbiol 2022; 13:1093487. [PMID: 36583043 PMCID: PMC9792967 DOI: 10.3389/fmicb.2022.1093487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 11/23/2022] [Indexed: 12/14/2022] Open
Abstract
Changes in soil CO2 and N2O emissions due to climate change and nitrogen input will result in increased levels of atmospheric CO2 and N2O, thereby feeding back into Earth's climate. Understanding the responses of soil carbon and nitrogen emissions mediated by microbe from permafrost peatland to temperature rising is important for modeling the regional carbon and nitrogen balance. This study conducted a laboratory incubation experiment at 15 and 20°C to observe the impact of increasing temperature on soil CO2 and N2O emissions and soil microbial abundances in permafrost peatland. An NH4NO3 solution was added to soil at a concentration of 50 mg N kg-1 to investigate the effect of nitrogen addition. The results indicated that elevated temperature, available nitrogen, and their combined effects significantly increased CO2 and N2O emissions in permafrost peatland. However, the temperature sensitivities of soil CO2 and N2O emissions were not affected by nitrogen addition. Warming significantly increased the abundances of methanogens, methanotrophs, and nirK-type denitrifiers, and the contents of soil dissolved organic carbon (DOC) and ammonia nitrogen, whereas nirS-type denitrifiers, β-1,4-glucosidase (βG), cellobiohydrolase (CBH), and acid phosphatase (AP) activities significantly decreased. Nitrogen addition significantly increased soil nirS-type denitrifiers abundances, β-1,4-N- acetylglucosaminidase (NAG) activities, and ammonia nitrogen and nitrate nitrogen contents, but significantly reduced bacterial, methanogen abundances, CBH, and AP activities. A rising temperature and nitrogen addition had synergistic effects on soil fungal and methanotroph abundances, NAG activities, and DOC and DON contents. Soil CO2 emissions showed a significantly positive correlation with soil fungal abundances, NAG activities, and ammonia nitrogen and nitrate nitrogen contents. Soil N2O emissions showed positive correlations with soil fungal, methanotroph, and nirK-type denitrifiers abundances, and DOC, ammonia nitrogen, and nitrate contents. These results demonstrate the importance of soil microbes, labile carbon, and nitrogen for regulating soil carbon and nitrogen emissions. The results of this study can assist simulating the effects of global climate change on carbon and nitrogen cycling in permafrost peatlands.
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Affiliation(s)
- Yanyu Song
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
| | - Xiaofeng Cheng
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
| | - Changchun Song
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China,School of Hydraulic Engineering, Dalian University of Technology, Dalian, China,*Correspondence: Changchun Song,
| | - Mengting Li
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China,College of Tourism and Geographical Science, Jilin Normal University, Siping, China
| | - Siqi Gao
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China,College of Resource and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Zhendi Liu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China,College of Resource and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Jinli Gao
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
| | - Xianwei Wang
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, China
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Verma P, Sagar R. Soil respiration response to nitrogen fertilization experiment in tropical grassland. Ecol Res 2022. [DOI: 10.1111/1440-1703.12307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Preeti Verma
- Department of Botany Banaras Hindu University Varanasi India
- Department of Botany Government Degree College Basti India
| | - R. Sagar
- Department of Botany Banaras Hindu University Varanasi India
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Fu R, Xu X, Yu Y, Zhang Y, Sun Z, Tao X. Forest soil respiration response to increasing nitrogen deposition along an urban–rural gradient. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Lafuente A, Recio J, Ochoa-Hueso R, Gallardo A, Pérez-Corona ME, Manrique E, Durán J. Simulated nitrogen deposition influences soil greenhouse gas fluxes in a Mediterranean dryland. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 737:139610. [PMID: 32535308 DOI: 10.1016/j.scitotenv.2020.139610] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/15/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
Soil nitrogen (N) availability is a key driver of soil-atmosphere greenhouse gas (GHG) exchange, yet we are far from understanding how increases in N deposition due to human activities will influence the net soil-atmosphere fluxes of the three most important GHGs: nitrous oxide (N2O), methane (CH4) and carbon dioxide (CO2). We simulated four levels of N deposition (10, 20 and 50 kg N ha-1 yr-1, plus unfertilised control) to evaluate their effects on N2O, CH4 and CO2 soil fluxes in a semiarid shrubland in central Spain. After 8 years of experimental fertilisation, increasing N availability led to a consistent increase in N2O emissions, likely due to simultaneous increases in soil microbial nitrification and/or denitrification processes. However, only intermediate levels of N fertilisation reduced CH4 uptake, while increasing N fertilisation had no effects on CO2 fluxes, suggesting complex interactions between N deposition loads and GHG fluxes. Our study provides novel insight into the responses of GHGs to N deposition in drylands, forecasting increases in N2O emissions, and decreases in CH4 uptake rates, with likely consequences to the on-going climate change.
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Affiliation(s)
- Angela Lafuente
- Departamento de Biología y Geología, Física y Química Inorgánica, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, c/ Tulipán s/n, 28933 Móstoles, Spain.
| | - Jaime Recio
- Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Ciudad Universitaria, 28040 Madrid, Spain; Research Center for the Management of Environmental and Agricultural Risks (CEIGRAM), Universidad Politécnica de Madrid, Madrid 28040, Spain
| | - Raúl Ochoa-Hueso
- Departamento de Biología-IVAGRO, Universidad de Cádiz, Av. República Árabe Saharaui, 11510 Puerto Real, Cádiz, Spain
| | - Antonio Gallardo
- Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Sevilla, Spain
| | - M Esther Pérez-Corona
- Departamento de Biodiversidad, Ecología y Evolución (UD Ecología), Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, c/ José Antonio Novais 12, 28040 Madrid, Spain
| | - Esteban Manrique
- Real Jardín Botánico, Consejo Superior de Investigaciones Científicas, c/ Claudio Moyano, 1, 28014 Madrid, Spain
| | - Jorge Durán
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
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Preece C, Farré-Armengol G, Peñuelas J. Drought is a stronger driver of soil respiration and microbial communities than nitrogen or phosphorus addition in two Mediterranean tree species. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 735:139554. [PMID: 32492563 DOI: 10.1016/j.scitotenv.2020.139554] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/14/2020] [Accepted: 05/17/2020] [Indexed: 06/11/2023]
Abstract
The drivers of global change, such as increasing drought and nutrient deposition, are affecting soils and their microbial communities in many different habitats, but how these factors interact remains unclear. Quercus ilex and Pinus sylvestris are two important tree species in Mediterranean montane areas that respond differently to drought, which may be associated with the soils in which they grow. We measured soil respiration and physiologically profiled microbial communities to test the impact of drought and subsequent recovery on soil function and diversity for these two species. We also tested whether the addition of nitrogen and phosphorus modified these effects. Drought was the stronger driver of changes to the soil communities, decreasing diversity (Shannon index), and evenness for both species and decreasing soil respiration for Q. ilex when N was added. Soil respiration for P. sylvestris during the drought period was positively affected by N addition but was not affected by water stress. P addition during the drought period did not affect soil respiration for either tree species but did interact with soil-water content to affect community evenness for P. sylvestris. The two species also differed following the recovery from drought. Soil respiration for Q. ilex recovered fully after the drought treatment ended but decreased for P. sylvestris, whereas the soil community was more resilient for P. sylvestris than Q. ilex. Nutrient addition did not affect respiration or community composition or diversity during the recovery period. Soil respiration was generally weakly positively correlated with soil diversity. We demonstrate that short-term water stress and nutrient addition can have variable effects on the soil communities associated with different tree species and that the compositions of the communities can become uncoupled from soil respiration. Overall, we show that drought may be a stronger driver of changes to soil communities than nitrogen or phosphorus deposition.
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Affiliation(s)
- Catherine Preece
- CREAF, Cerdanyola del Vallès, 08193, Catalonia, Spain; CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra 08193, Catalonia, Spain.
| | - Gerard Farré-Armengol
- Department of Biosciences, University Salzburg, Hellbrunnerstraße 34, 5020 Salzburg, Austria
| | - Josep Peñuelas
- CREAF, Cerdanyola del Vallès, 08193, Catalonia, Spain; CSIC, Global Ecology Unit CREAF-CSIC-UAB, Bellaterra 08193, Catalonia, Spain
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Munzi S, Ochoa-Hueso R, Gerosa G, Marzuoli R. (E)merging directions on air pollution and climate change research in Mediterranean Basin ecosystems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:26155-26159. [PMID: 29218512 DOI: 10.1007/s11356-017-0688-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 11/03/2017] [Indexed: 06/07/2023]
Affiliation(s)
- Silvana Munzi
- Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisbon, Portugal.
| | - Raúl Ochoa-Hueso
- Departamento de Ecología, Universidad Autónoma de Madrid, 2, Darwin Street, 28049, Madrid, Spain
| | - Giacomo Gerosa
- Department of Mathematics and Physics, Catholic University of Brescia, Via dei Musei 41, Brescia, Italy
| | - Riccardo Marzuoli
- Department of Mathematics and Physics, Catholic University of Brescia, Via dei Musei 41, Brescia, Italy
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