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Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (2): 173-182.DOI: 10.7522/j.issn.1000-694X.2021.00109

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Research advances in stoichiometry of desert plant-soil system in China

Jiannan Lu1,2(), Kaijun Liu3, Ruixiong Wang1,2, Yanjie Li4, Zhiying Ning1,2, Xueping Chen1,2, Siteng Zhao1,2, Shaokun Wang1, Xueyong Zhao1()   

  1. 1.Urat Desert-Grassland Research Station /Naiman Desertification Research Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
    3.Urat Rear Banner Forestry and Grassland Administration,Bayannur 015500,Inner Mongolia,China
    4.School of Earth Sciences,Lanzhou University,Lanzhou 730000,China
  • Received:2021-04-30 Revised:2021-08-25 Online:2022-03-20 Published:2022-03-30
  • Contact: Xueyong Zhao

Abstract:

Desert ecosystem is an essential part of the terrestrial ecosystem in China, with a unique structure and function. Ecological stoichiometry focuses on the ratio of C, N, and P chemical elements, and their balance relationships have become a powerful tool for revealing ecological processes such as nutrient cycles and limitations in ecosystems. Plants have the ability to regulate nutrient elements among organs and respond to environmental changes. Soil C∶N∶P characterizes changes in soil nutrient supply capacity and storage. There is also a close relationship between N and P nutrient circulation in plant-soil system. From the perspectives of plant-organ element stoichiometry, plant-soil stoichiometry characteristics and its influencing factors at the regional scale, the role of C∶N∶P stoichiometric balance in the process of ontogeny, population dynamics and community structure formation, and interrelationships of ecological stoichiometry in plant-soil systems, we discussed the research progress of ecological stoichiometry of desert ecosystems in China in the past ten years and looked forward to the future research content.

Key words: desert, ecological stoichiometry, allometric growth, environmental response

CLC Number: