img

Wechat

Adv search

Journal of Desert Research ›› 2023, Vol. 43 ›› Issue (4): 31-40.DOI: 10.7522/j.issn.1000-694X.2022.00166

Previous Articles     Next Articles

Desertification evolution in the sandy region to the east of the Yellow River in Ningxia from 2000 to 2020

Yaozong Wang1,2(), Xinbin Yue1, Jiali Xie3,4(), Zhipeng Liu1, Yuan Ma1, Yahui Wang3,4, Yan Gong1   

  1. 1.Ecological Environment Monitoring Center of Ningxia,Yinchuan 750002,China
    2.Ecological Environment Information and Emergency Center of Ningxia,Yinchuan 750001,China
    3.Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    4.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2022-11-08 Revised:2022-12-12 Online:2023-07-20 Published:2023-08-14
  • Contact: Jiali Xie

Abstract:

The sandy region to the east of the Yellow River in Ningxia is a transitional region in the agro-pastoral ecumenical zone in northern China. Understanding the law of the development of desertification in this region is helpful to coordinate the local man-land relationship and guide the implementation of ecological construction project. The Landsat data were used to extract the information of desertification land for five periods of 2000, 2005, 2010, 2015 and 2020 in the sandy region to the east of the Yellow River in Ningxia, then the temporal and spatial characteristics of desertification land were analyzed by combining the barycenter transfer model, and the effects of climate change and human activities on regional desertification evolution were stripped and recombined by multiple regression residual analysis method. The results show that the overall area of desertification land in the sandy region to the east of the Yellow River in Ningxia decreased, the degree of desertification was reduced, and the desertification was reversed from 2000 to 2020. The degree of desertification in the northern part of the region was more serious than that in the southern part. The barycenter of all kinds of desertification land moved northward, and the degree of desertification reversal was more significant in the south than in the north. Regional desertification reversal is mainly influenced by climate change and human activities.

Key words: sandy region to the east of the Yellow River in Ningxia, desertification, barycenter transfer, human activities, climate change

CLC Number: