广西师范大学学报（自然科学版） ›› 2022, Vol. 40 ›› Issue (5): 376-387.doi: 10.16088/j.issn.1001-6600.2022022810

• 综述 • 上一篇    下一篇

土壤养分及其化学计量特征对微生物碳利用效率的影响机制

朱婧1,2*, 刘鼎1,2, 王珊2, 黄祚水2, 梁建宏3,4,5*   

  1. 1.珍稀濒危动植物生态与环境保护教育部重点实验室(广西师范大学), 广西 桂林 541006;
    2.广西师范大学 环境与资源学院, 广西 桂林 541006;
    3.中国地质科学院 岩溶地质研究所, 广西 桂林 541004;
    4.自然资源部/ 广西岩溶动力学重点实验室, 广西 桂林 541004;
    5.自然资源部 岩溶生态系统与石漠化治理重点实验室, 广西 桂林 541004
  • 收稿日期:2022-02-28 修回日期:2022-04-05 出版日期:2022-09-25 发布日期:2022-10-18
  • 通讯作者: 朱婧(1982—), 女, 广西桂林人, 广西师范大学副教授, 博士。E-mail: zhuj@gxnu.edu.cn; 梁建宏(1982—), 男, 山西平遥人, 中国地质科学院岩溶地质研究所助理研究员, 博士。E-mail: johnhomliang@hotmail.com
  • 基金资助:
    国家自然科学基金(41967005); 广西自然科学基金(2020GXNSFBA159029, 2018GXNSFAA281350); 广西高校引进海外高层次人才百人计划专项经费。

Impacts of Soil Nutrients and Stoichiometry on Microbial Carbon Use Efficiency

ZHU Jing1,2*, LIU Ding1,2, WANG Shan2, HUANG Zuoshui2, LIANG Jianhong3,4,5*   

  1. 1. Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin Guangxi 541006, China;
    2. College of Environment and Resources, Guangxi Normal University, Guilin Guangxi 541006, China;
    3. Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin Guangxi 541004, China;
    4. Key Laboratory of Karst Dynamics, Ministry of Natural Resources/ Guangxi Zhuang Autonomous Region, Guilin Guangxi 541004, China;
    5. Key Laboratory of Karst Ecosystem and Treatment of Rocky Desertification, Ministry of Natural Resources, Guilin Guangxi 541004, China
  • Received:2022-02-28 Revised:2022-04-05 Online:2022-09-25 Published:2022-10-18

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摘要： 土壤微生物碳利用效率(CUE)用以评估生态系统中微生物将有机碳转化为自身生物量的效率,其大小反映生态系统碳同化和固持的能力。本文以土壤养分及其化学计量比对微生物CUE的影响为主线, 详细综述土壤有机质质量、养分可利用性、碳氮磷和胞外酶化学计量比以及由养分限制所引发的微生物群落结构改变和有机质激发效应等对CUE影响的机理,并讨论气候、生态系统类型和土地利用方式、土壤深度和理化性质等通过影响土壤养分状况而对微生物CUE产生的间接作用机制,在此基础上分析微生物CUE研究中研究方法和研究尺度上所面临的挑战,并展望未来关注的重点科学问题。

关键词: 养分限制, 土壤碳库, 群落结构, 胞外酶化学计量, 激发效应, 气候变化, 土地利用

Abstract: Soil microbial carbon use efficiency (CUE) is an index to evaluate the efficiency of microorganisms to incorporate organic carbon into microbial biomass in ecosystems. This index reflects ecosystems’ ability for carbon assimilation and sequestration. This paper mainly reviewed the researches on the impacts of soil nutrients and stoichiometry on microbial CUE, and summarized the mechanisms of the effects on CUE from the angles of the quality of soil organic matter, nutrient availability, stoichiometry of carbon, nitrogen, phosphorus and extracellular enzyme activities, nutrient limitation induced change in microbial community structure and organic priming effect. Furthermore, the indirect influences of climate, ecosystem and land-use types, soil depth and physiochemical characteristics to microbial CUE via their impacts on soil nutrient status were discussed. On the basis of the above analysis, the challenges in research approaches of microbial CUE and scales, and the future research directions were discussed.

Key words: nutrient limitation, soil carbon pool, community structure, extracellular enzyme stoichiometry, priming effect, climate change, land use

中图分类号: 

  • S154.36
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