Journal of Guangxi Normal University(Natural Science Edition) ›› 2022, Vol. 40 ›› Issue (5): 376-387.doi: 10.16088/j.issn.1001-6600.2022022810

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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

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

CLC Number: 

  • S154.36
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[5] QIN Chengfu, MO Fenmei. Structure ofC3-and C4-Critical Graphs[J]. Journal of Guangxi Normal University(Natural Science Edition), 2022, 40(4): 145 -153 .
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[7] TIAN Ruiqian, SONG Shuxiang, LIU Zhenyu, CEN Mingcan, JIANG Pinqun, CAI Chaobo. Research Progress of Successive Approximation Register Analog-to-Digital Converter[J]. Journal of Guangxi Normal University(Natural Science Edition), 2022, 40(5): 24 -35 .
[8] ZHANG Shichao, LI Jiaye. Knowledge Matrix Representation[J]. Journal of Guangxi Normal University(Natural Science Edition), 2022, 40(5): 36 -48 .
[9] LIANG Yuting, LUO Yuling, ZHANG Shunsheng. Review on Chaotic Image Encryption Based on Compressed Sensing[J]. Journal of Guangxi Normal University(Natural Science Edition), 2022, 40(5): 49 -58 .
[10] HAO Yaru, DONG Li, XU Ke, LI Xianxian. Interpretability of Pre-trained Language Models: A Survey[J]. Journal of Guangxi Normal University(Natural Science Edition), 2022, 40(5): 59 -71 .