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Journal of Desert Research ›› 2024, Vol. 44 ›› Issue (3): 75-84.DOI: 10.7522/j.issn.1000-694X.2023.00168

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Spatio-temporal variation and prediction of habitat quality in Wuding River Basin

Xiaoyu Zhang1(), Zixiang Zhou1(), Zhixiong Tang2, Yanxu Sun3   

  1. 1.Xi'an University of Science and Technology,Xi'an 710054,China
    2.Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha 410000,China
    3.Oriental Space-Time Big Data Technology (Shandong) Co. ,Ltd. ,Yantai 265100,Shandong,China
  • Received:2023-11-02 Revised:2023-12-11 Online:2024-05-20 Published:2024-06-11
  • Contact: Zixiang Zhou

Abstract:

The "14th Five-Year Plan" of China proposed to include the Loess Plateau as a key area in the ecological protection and restoration of the Yellow River, implementing integrated watershed management on an appropriate basis. As a typical vulnerable basin in the Loess Plateau, the study of its spatial and temporal changes in habitat quality is of great significance for promoting the improvement of regional ecological environment quality. This study evaluated and predicted the spatiotemporal evolution characteristics of habitat quality in the Wuding River basin at both the whole basin and sub-basin scales, and explored the driving factors of spatial differentiation in habitat quality. The results showed that: (1) During 2000-2020, the proportion of forests and grasslands in the Wuding River basin increased by 11.73%, the area of construction land more than doubled compared to 2000, and the proportion of unused land decreased by 8.46%. During 2020-2050, the land use change situation is expected to remain consistent with the period from 2000 to 2020, but the intensity of change will gradually decrease. (2) During 2000-2020, the habitat quality in the Wuding River basin increased over time, showing a small upward trend overall. During 2020-2050, the growth rate of habitat quality will slow down, and the intensity of change will also weaken, indicating a generally positive development. (3) Land use is the dominant factor driving habitat quality, followed by NDVI and soil type. The study results can provide reference for biodiversity conservation, natural environment protection, and sustainable development in the basin.

Key words: land use, habitat quality, InVEST model, PLUS model, Wuding River Basin

CLC Number: