The soil Microbial Carbon Pump as a new concept for terrestrial carbon sequestration

作     者：Chao LIANG Xuefeng ZHU Chao LIANG;Xuefeng ZHU

作者机构：Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2021年第64卷第4期

页      面：545-558页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0708[理学-地球物理学] 0706[理学-大气科学] 0704[理学-天文学] 

基　　金：support from the EcoMicrobiology Lab and Soil and Environmental Biochemistry Lab in the Institute of Applied Ecology, Chinese Academy of Sciences supported by the National Natural Science Foundation of China (Grant Nos. 31930070 & 41977051)。 

主　　题：Soil Microbial Carbon Pump Entombing Effect Carbon cycling Soil microorganisms Soil organic carbon Microbial residues Amino sugars Soil fauna 

摘      要：Soil is a huge terrestrial carbon pool, which has higher carbon storage than the sum of atmospheric and terrestrial vegetation carbon. Small fluctuations in soil carbon pool can affect regional carbon flux and global climate change. As soil organic carbon plays key roles in soil carbon storage and sequestration, studying its composition, sources and stability mechanism is a key to deeply understand the functions of terrestrial ecosystem and how it will respond to climate changes. The recently-proposed concept of soil Microbial Carbon Pump(MCP) emphasizes the importance of soil microbial anabolism and its contributions to soil carbon formation and stabilization, which can be applied for elucidating the source, formation and sequestration of soil organic carbon. This article elaborates MCP-mediated soil carbon sequestration mechanism and its influencing factors, as well as representative scientific questions we may explore with the soil MCP conceptual framework.