Evaluating Ecological Resilience in the Yangtze River Economic Belt in China: A PSR Model-Based Spatiotemporal Analysis (2008-2018)

Zhiyi Li; Lingyan Dong; Li Wang

doi:10.71222/j5nfjh48

Authors

Zhiyi Li Changjiang River Scientific Research Institute, Changjiang Water Resources Commission of the Ministry of Water Resources of China, Wuhan, China Author
Lingyan Dong Changjiang River Scientific Research Institute, Changjiang Water Resources Commission of the Ministry of Water Resources of China, Wuhan, China Author
Li Wang College of Geomatics, Xi'an University of Science and Technology, Xi'an, China Author

DOI:

https://doi.org/10.71222/j5nfjh48

Keywords:

Yangtze River Economic Belt (YREB), ecological resilience, PSR model, indicator system, regional assessment

Abstract

The assessment of ecological resilience holds significant theoretical importance for the high-quality development of the Yangtze River Economic Belt (YREB). This study constructs an ecological resilience evaluation system based on the Pressure-State-Response (PSR) model by selecting pressure, state, and response indicators. It investigates the spatiotemporal evolution of ecological resilience in the YREB from 2008 to 2018, regional disparities, and their underlying causes. The results indicate that: (1) The overall ecological resilience of the YREB exhibited a fluctuating upward trend during 2008-2018. (2) Distinct regional drivers were identified: ecological resilience in the upstream regions correlated strongly with response indicators, midstream regions showed closer ties to pressure indicators, and downstream regions demonstrated interdependencies between resilience and both state and response indicators. Specifically, fluctuations in the response index reflect the intensity of investment, variations in the pressure index indicate the pace of urbanization processes, and changes in the state index correspond to the dynamics of water resource conditions. This research provides a scientific foundation for ecological conservation and sustainable development in the YREB, elucidates the impact of human activities on ecological environments, and offers strategic insights for achieving high-quality development under the "Yangtze River Protection" framework.

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