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Arid Land Geography ›› 2025, Vol. 48 ›› Issue (11): 2019-2030.doi: 10.12118/j.issn.1000-6060.2024.573

• Ecology and Environment • Previous Articles     Next Articles

Ecological vulnerability assessment of Tarim Populus euphratica Forest Park based on SRP model

LIN Mofei(), GUAN Yawen(), LIAN Yifei   

  1. School of Architecture & Fine Art, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2024-09-22 Revised:2024-11-30 Online:2025-11-25 Published:2025-11-26
  • Contact: GUAN Yawen E-mail:murphylinlu@dlut.edu.cn;guanyawen0057@163.com

Abstract:

An ecological vulnerability assessment provides the foundation for sustainable regional development and restoration. This study utilized remote sensing data and socioeconomic statistics to construct an ecological vulnerability evaluation index system for the Tarim Populus euphratica Forest Park (Xinjiang, China). Based on the sensitivity-resilience-pressure model, the system incorporated 18 indicators, including ecological function, and was analyzed using a combined hierarchical analysis-entropy weighting method. This approach revealed the spatiotemporal characteristics and driving factors of the park’s ecological vulnerability from 2000 to 2020. The results are as follows: (1) The park’s average ecological vulnerability index was 0.30 in 2020, indicating a mild vulnerability level, with a spatial distribution of higher vulnerability in the eastern, western, and central areas and lower vulnerability in the southeast. (2) The park’s ecological vulnerability showed a fluctuating downward trend, moving from an index of 0.33 in 2000 to 0.47 in 2010, before improving to 0.29 in 2015 and then slightly degrading to 0.30 in 2020. Over this period, 44.52% of the area saw a decrease in vulnerability, while 28.60% experienced an increase. (3) A significant positive spatial correlation was consistently observed, with a Global Moran’s I greater than 0 (Z>2.58, P<0.01), indicating prominent low-low and high-high clustering. (4) Key single-factor drivers of vulnerability included the degree of water change, desertification, water conservation, and the vegetation index. The interactions among the factors demonstrated a non-linear and two-factor enhancement relationship. Remarkably, the synergistic effect between the degree of water change and water source conservation was the most significant driver of the park’s ecological vulnerability. These results offer a scientific reference for the ecological restoration, environmental protection, and sustainable management of the Tarim P. euphratica Forest Park.

Key words: ecological vulnerability, sensitivity-resilience-pressure model, analytic hierarchy process-entropy weight method, geodetector, Tarim Populus euphratica Forest Park