土壤有机碳微生物利用效率的元素计量学驱动机制研究进展
Stoichiometry mechanism of microbial utilization efficiency of soil organic carbon:a review
张红瑞 1王香香 1曹丹 1祝贞科 1葛体达1
作者信息
- 1. 宁波大学植物病毒学研究所,浙江 宁波 315000
- 折叠
摘要
土壤有机碳的微生物利用效率是描述微生物有机碳同化效率的重要参数,也是衡量土壤固碳潜力的重要指标,与土壤碳库的固定、转化、矿化以及温室气体的排放紧密相关.土壤微生物对有机碳的利用效率取决于微生物的种类、数量以及群落结构,理解和评估土壤有机碳微生物利用效率对于解析土壤碳循环和促进土壤固碳减排具有重要意义.因此,理解土壤有机碳微生物利用过程,及其与氮、磷等元素的计量学耦合关系,为揭示土壤有机碳周转的微生物过程机制提供理论依据.未来的研究应关注在多生态系统中多因子影响下的土壤有机碳微生物利用效率的阈值范围和调控机制,以期为生态系统固碳减排和实现"双碳"目标提供新思路.
Abstract
Soil microbial carbon use efficiency(CUE)is an important parameter to describe the efficiency of microbial carbon anabolism,and it is also a crucial indicator to assess the potential of soil organic carbon sequestration.The turnover and mineralization of soil organic carbon,and the CO2 emissions are closely related to CUE.The CUE depends on the microbial composition,abundance and community structure.It's significant to understand and evaluate CUE to promote soil carbon sequestration.Therefore,clarifying the relationships between CUE and the carbon∶nitrogen∶phosphorus stoichiometry provides a theoretical basis for revealing the microbial mechanism of soil organic carbon cycle.Future research on threshold and regulatory mechanism of CUE should focus on a variety of ecosystems and components,and offer new perspectives on how to reduce carbon emissions and increase soil organic carbon sequestration,and achieve the carbon peaking and carbon neutrality goals.
关键词
土壤碳循环/土壤微生物/碳源利用效率/元素计量学Key words
soil carbon cycle/soil microorganism/carbon use efficiency/stoichiometry引用本文复制引用
基金项目
宁波市重大科技任务攻关项目(2022Z168)
国家自然科学基金(42177334)
出版年
2024
NETL
NSTL
万方数据