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Journal of Desert Research >

2025 , Vol. 45 >Issue 2: 184 - 190

DOI: https://doi.org/10.7522/j.issn.1000-694X.2024.00121

A review of response of nitrous oxide emissions to anthropogenic perturbation in grassland soil

  • Haifu Fang ,
  • Xiang Chen ,
  • Hongling Yang ,
  • Li Cheng ,
  • Yulin Li
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  • 1.Naiman Desertification Research Station /, Northwest Institute of Eco-Environment and Resource，Chinese Academy of Sciences，Lanzhou 730000，China
    2.Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Northwest Institute of Eco-Environment and Resource，Chinese Academy of Sciences，Lanzhou 730000，China
    3.University of Chinese Academy of Sciences，Beijing 100049，China
    4.National Center of Pratacultural Technology Innovation （under preparation），Hohhot 010070，China

Received date: 2024-10-31

  Revised date: 2024-12-12

  Online published: 2025-03-26

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Abstract

The rise of nitrogen nitrogen （N2O） concentration has exacerbated global warming. In recent years， China has faced the phenomenon of severe expansion of grassland desertification， and the response to the study of grass soil N2O of grassland soil is increasing. However， there is a lack of systematic studies on the changes in N2O emissions from grassland soils due to anthropogenic disturbances in terms of soil physicochemical properties and microorganisms and environmental factors. Therefore， this paper reviews the response mechanisms of grassland soil N2O emissions to different disturbance types. Results showed that： ammonium nitrogen （NH4+-N） and nitric nitrogen （NO3--N） are substrates for soil microbial nitrogen and nitrification. Rather than reducing soluble organic matter （DOM） to restrict nitrifying microorganisms， suppression of functional denitrification genes and denitrification potentials， and eventually lead to a reduction in potential N2O emissions of the soil. Cutting the soil temperature of the sandy grassland and reducing the activity of soil enzymes， inducing soil microorganisms and activity， inhibit the breathing of microorganisms， and affect the soil nitrogen cycle. The change of fire to the flux of soil N2O is related to the intensity and duration of fire interference. Therefore， future research should further explore its internal mechanisms to provide theoretical support for grassland scientific management and greenhouse gas emission reduction.

Key words： grassland soils; nitrous oxide; anthropogenic perturbation

Cite this article

Haifu Fang , Xiang Chen , Hongling Yang , Li Cheng , Yulin Li . A review of response of nitrous oxide emissions to anthropogenic perturbation in grassland soil[J]. Journal of Desert Research, 2025 , 45(2) : 184 -190 . DOI: 10.7522/j.issn.1000-694X.2024.00121

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