期刊
ONE EARTH
卷 2, 期 4, 页码 349-360出版社
CELL PRESS
DOI: 10.1016/j.oneear.2020.03.006
关键词
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资金
- Swiss National Science Foundation [PZ00P3_179900]
- German Ministry for Economic Cooperation and Development
- Swiss National Science Foundation (SNF) [PZ00P3_179900] Funding Source: Swiss National Science Foundation (SNF)
Soil stores more carbon (C) than all vegetation and the atmosphere combined. Soil C stocks are broadly shaped by temperature, moisture, soil physical characteristics, vegetation, and microbial-mediated metabolic processes. The efficiency with which microorganisms use soil C regulates the balance between C storage in soil and the atmosphere. In this review, we discuss how microbial physiology and community assembly processes determine microbial growth rate and efficiency and, in turn, soil organic C cycling through the lens of community ecology. We introduce a conceptual framework cataloging life history (i.e., growth rate, resource acquisition, and stress tolerance) and assembly traits (i.e., competition, facilitation, and dispersal) that correspond with different growth efficiencies. We also compare how dominant mycorrhizal fungal type affects growth efficiency. We propose that further development and inclusion of specific community parameters in microbial-explicit Earth system models are needed for accurately predicting soil organic C responses to global change.
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