土壤微生物碳泵概念体系2.0  

Soil microbial carbon pump conceptual framework 2.0

作　　者：朱雪峰 孔维栋[3] 黄懿梅[4] 肖可青[5] 罗煜 安韶山[7] 梁超[1,2] ZHU Xuefeng;KONG Weidong;HUANG Yimei;XIAO Keqing;LUO Yu;AN Shaoshan;LIANG Chao(Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China;Key Lab of Conservation Tillage and Ecological Agriculture,Shenyang 110016,China;Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100101,China;College of Natural Resources and Environment,Northwest A&F University,Yangling 712100,Shaanxi,China;Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;College of Environmental&Resource Sciences,Zhejiang University,Hangzhou 310058,China;Institute of Soil and Water Conservation,Northwest A&F University,Yangling 712100,Shaanxi,China)

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110016 [2]辽宁省现代保护性耕作与生态农业重点实验室,沈阳110016 [3]中国科学院青藏高原研究所,北京100101 [4]西北农林科技大学资源环境学院,陕西杨凌712100 [5]中国科学院生态环境研究中心,北京100085 [6]浙江大学环境与资源学院,杭州310058 [7]西北农林科技大学水土保持研究所,陕西杨凌712100

出　　处：《应用生态学报》2024年第1期102-110,共9页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金项目(32241037,32101382,31930070)资助。

摘　　要：土壤微生物在陆地生态系统元素循环中扮演着关键角色,对土壤健康、粮食安全和全球气候变化发挥着重要的调节作用。土壤微生物同化代谢产物对土壤碳储存与有机质维持的贡献不容忽视。近年来,以微生物代谢和死亡残体生成过程为核心提出的土壤微生物碳泵概念体系得到了广泛关注,它主要描述了以土壤异养微生物代谢为驱动的土壤有机碳形成和稳定化过程,是目前陆地生态系统碳固存的重要机制体系与研究热点。本文对该体系的研究进展进行了梳理,并提出了引入自养微生物固碳通道与结合土壤矿物碳泵概念的土壤微生物碳泵概念体系2.0,以期丰富和完善现有的微生物介导的陆地生态系统土壤碳循环与固持机制,为实现我国“双碳”目标提供理论支撑。Microorganisms are essential actors in the biogeochemical cycling of elements within terrestrial ecosystems,with significant influences on soil health,food security,and global climate change.The contribution of microbial anabolism-induced organic compounds is a non-negligible factor in the processes associated with soil carbon(C)storage and organic matter preservation.In recent years,the conceptual framework of soil microbial carbon pump(MCP),with a focus on microbial metabolism and necromass generation process,has gained widespread attention.It primarily describes the processes of soil organic C formation and stabilization driven by the metabolic activities of soil heterotrophic microorganisms,representing an important mechanism and a focal point in current research on terrestrial C sequestration.Here,we reviewed the progress in this field and introduced the soil MCP conceptual framework 2.0,which expands upon the existing MCP model by incorporating autotrophic microbial pathway for C sequestration and integrating the concept of soil mineral C pump.These advancements aimed to enrich and refine our understanding of microbial-mediated terrestrial ecosystem C cycling and sequestration mechanisms.This refined framework would provide theoretical support for achieving China’s“dual carbon”goals.

关 键 词：土壤微生物碳泵 微生物死亡残体 自养微生物 矿物碳泵 碳循环 

分 类 号：S154.3[农业科学—土壤学]