固碳
环境科学
土壤有机质
土壤碳
自养
生物地球化学循环
碳循环
土壤生物学
陆地生态系统
生态系统
地球科学
环境化学
生态学
土壤科学
土壤水分
化学
生物
二氧化碳
地质学
遗传学
细菌
作者
Xuefeng Zhu,Weidong Kong,Yimei Huang,Ke‐Qing Xiao,Yu Luo,Shaoshan An,Chao Liang
出处
期刊:PubMed
日期:2024-01-01
卷期号:35 (1): 102-110
被引量:2
标识
DOI:10.13287/j.1001-9332.202401.018
摘要
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.
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