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Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (1): 48-56.DOI: 10.7522/j.issn.1000-694X.2021.00198

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Research progresses in ecological stoichiometry of C, N and P in desert ecosystems

Zhishan Zhang1(), Guisen Yang1,2, Lü Xingyu3, Rui Hu1, Lei Huang1   

  1. 1.Shapotou Desert Research and Experiment Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049
    3.College of Urban and Environmental Sciences,Peking University,Beijing 100871,China
  • Received:2021-08-20 Revised:2021-09-28 Online:2022-01-20 Published:2022-01-28

Abstract:

Ecological stoichiometry is one of the important researches directions of desert ecosystems, in which the relationship between the contents and ratios of main elements in biological organisms is studied, in order to reveal the elemental circulation rules among the components of the ecosystem. Therefore, comprehensively understanding the ecological stoichiometry of C, N and P in water and nutrient limited situations is of great significance to reveal the judgment of plant restrictive elements in desert ecosystems, the supply capacity of soil nutrients, and the availability of nutrients. In this paper, the latest researches trends and progresses of ecological stoichiometry of C, N and P in desert ecosystems were reviewed based on the stoichiometry of C, N and P in plants, litters, soil, soil microorganisms and soil enzymes. The relationships among plant-soil- microorganism-enzyme were also discussed. Finally, the future research directions of ecological stoichiometry of C, N and P in desert ecosystems were put forward. We do hope this review could provide theoretical guidance for the comprehensive understanding of the evolution process, stability maintenance mechanism and scientific management of sand-fixing revegetation.

Key words: desert ecosystems, ecological stoichiometry, C∶N∶P, research progresses

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