TY - JOUR
T1 - Importance of periphytic biofilms for carbon cycling in paddy fields
T2 - A review
AU - Zhou, Lei
AU - Wu, Yonghong
AU - Liu, Junzhuo
AU - Sun, Pengfei
AU - Xu, Ying
AU - Dolfing, Jan
AU - Spencer, Robert G. M.
AU - Jeppesen, Erik
N1 - Funding information: We acknowledge the financial support from the National Natural Science Foundation of China (Nos. 41825021 and 42207447), the National Key Research and Development Program of China (No. 2021YFD17008), the Provincial Natural Science Foundation of Jiangsu, China (No. BK20220004), the Postdoctoral Science Foundation of China (Nos. BX2021325 and 2022M723242), and the State Key Laboratory of Lake Science and Environment Foundation, China (No. 2022SKL008). EJ was supported by the TÜBITAK program BIDEB2232 of Türkiye (No. 118C250). We thank Ms. Anne Mette Poulsen for the language editing.
PY - 2024/2/1
Y1 - 2024/2/1
N2 - 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.
AB - 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.
KW - carbon fixation
KW - carbon mineralization
KW - carbon sequestration
KW - methane emission
KW - microbial aggregates
KW - soil organic carbon
UR - https://www.scopus.com/pages/publications/85185883760
U2 - 10.1016/j.pedsph.2023.03.005
DO - 10.1016/j.pedsph.2023.03.005
M3 - Review article
AN - SCOPUS:85185883760
SN - 1002-0160
VL - 34
SP - 36
EP - 43
JO - Pedosphere
JF - Pedosphere
IS - 1
ER -
