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中国沙漠 ›› 2022, Vol. 42 ›› Issue (1): 48-56.DOI: 10.7522/j.issn.1000-694X.2021.00198

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荒漠生态系统CNP生态化学计量研究进展

张志山1(), 杨贵森1,2, 吕星宇3, 虎瑞1, 黄磊1   

  1. 1.中国科学院西北生态环境资源研究院 沙坡头沙漠研究试验站,甘肃 兰州 730000
    2.中国科学院大学,北京 100049
    3.北京大学 城市环境学院,北京 100871
  • 收稿日期:2021-08-20 修回日期:2021-09-28 出版日期:2022-01-20 发布日期:2022-01-28
  • 作者简介:张志山(1974—),男,甘肃古浪人,研究员,主要从事干旱区生态学和生态水文学研究。E-mail: zszhang@lzb.ac.cn
  • 基金资助:
    国家自然科学基金项目(31971529)

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

摘要:

生态化学计量学是通过研究生物有机体主要元素含量及其比值的变化关系,揭示生态系统各组分间元素循环规律的一门学科,生态化学计量也是荒漠生态系统研究的重要内容。因此,综合掌握水分和养分限制环境下C、N、P生态化学计量的关系对揭示荒漠生态系统植物的限制性元素、土壤营养的供给能力、养分的有效性等都具有重要的意义。基于此,回顾和分析了国内外荒漠生态系统C、N、P生态化学计量最新研究和动态,分别从植物、凋落物、土壤、土壤微生物、土壤酶进行较为系统的评述,讨论了植物-土壤-微生物-酶四者的关系,提出了荒漠生态系统C、N、P生态化学计量的未来研究方向,期望为全面理解固沙植被的演变过程、稳定性维持机制及其科学管理提供理论指导。

关键词: 荒漠生态系统, 生态化学计量学, C∶N∶P, 研究进展

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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