首页|Importance of periphytic biofilms for carbon cycling in paddy fields:A review

Importance of periphytic biofilms for carbon cycling in paddy fields:A review

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Paddy fields play an important role in global carbon(C)cycling and are an important source of methane(CH4)emissions.Insights into the processes influencing the dynamics of soil organic C(SOC)in paddy fields are essential for maintaining global soil C stocks and mitigating climate change.Periphytic biofilms composed of microalgae,bacteria,and other microorganisms are ubiquitous in paddy fields,where they directly mediate the transfer of elements at the soil-water interface.However,their contributions to C turnover and exchange have been largely neglected.Periphytic biofilms affect and participate in soil C dynamics by altering both abiotic(e.g.,pH and redox potential)and biotic conditions(e.g.,microbial community composition and metabolism).This review summarizes the contributions of periphytic biofilms to soil C cycling processes,including carbon dioxide fixation,SOC mineralization,and CH4 emissions.Future research should be focused on:i)the mechanisms underlying periphytic biofilm-induced C fixation and turnover and ii)quantifying the contributions of periphytic biofilms to soil C uptake,stabilization,and sequestration in paddy fields.

carbon fixationcarbon mineralizationcarbon sequestrationmethane emissionmicrobial aggregatessoil organic carbon

Lei ZHOU、Yonghong WU、Junzhuo LIU、Pengfei SUN、Ying XU、Jan DOLFING、Robert G.M.SPENCER、Erik JEPPESEN

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State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008(China)

Zigui Three Gorges Reservoir Ecosystem,Observation and Research Station of Ministry of Water Resources of the People's Republic of China,Yichang 443605(China)

College of Nanjing,University of Chinese Academy of Sciences,Nanjing 211135(China)

Faculty of Energy and Environment,Northumbria University,Newcastle upon Tyne NE1 8QH(UK)

Department of Earth,Ocean and Atmospheric Science,Florida State University,Tallahassee FL 32306(USA)

Department of Ecoscience & Centre for Water Technology(WATEC),Aarhus University,Aarhus DK-8000(Denmark)

Sino-Danish Centre for Education and Research,Beijing 100049(China)

Limnology Laboratory,Department of Biological Sciences and Centre for Ecosystem Research and Implementation(EKOSAM),Middle East Technical University,Ankara 06800(Türkiye)

Institute of Marine Sciences,Middle East Technical University,Mersin 33731(Türkiye)

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国家自然科学基金国家自然科学基金国家重点研发计划江苏省自然科学基金中国博士后科学基金中国博士后科学基金State Key Laboratory of Lake Science and Environment Foundation,ChinaTUBITAK program BIDEB2232 of Türkiye

41825021422074472021YFD17008BK20220004BX20213252022M7232422022SKL008118C250

2024

10.1016/j.pedsph.2023.03.005

土壤圈(英文版)
中国土壤学会,中科院南京土壤研究所和土壤与农业可持续发展国家重点实验室

土壤圈(英文版)

CSTPCD
影响因子：0.477
ISSN：1002-0160
年,卷(期)：2024.34(1)
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