Scholarlink

<p>The China’s Chengdu–Chongqing Urban Agglomeration (CCUA), located in the Yangtze River Economic Belt and centered on Chengdu and Chongqing, is an important growth pole in western China. However, rapid urbanization and intensive human activities have triggered significant ecological imbalances, threatening regional sustainability and the ecological health of the Yangtze River Basin. To address this critical challenge and provide scientific support for ecological protection policies, this study evaluates the ecological sensitivity of the CCUA. Taking the CCUA as the study area, this study constructed an ecological sensitivity evaluation index system for the CCUA, comprising six criterion layers: driving force, pressure, state, impact, response, and management, using the DPSIRM model. The spatial characteristics of the ecological sensitivity of the CCUA were also analyzed in-depth by establishing the Hierarchical Analysis method (AHP)-Ordered Weighted Average Arithmetic (OWA) weight distribution model. The results of the study show that under the optimistic scenario, the ecological sensitivity of the CCUA presents a spatial pattern of “high in the urban core and low in the periphery, high in the mountainous areas and low in the plains” and exhibits significant geographic-economic coupling characteristics, and the areas of no sensitivity, low sensitivity, moderate sensitivity, high sensitivity, and extreme sensitivity account for 5.30%, 35%, 42.37%, 16.65%, and 0.56% of the total area, respectively. In the pessimistic model, low-sensitive areas dominate, while the area of highly sensitive areas decreases sharply. In the neutral model, all sensitive areas exhibit a balanced distribution that is closer to the actual ecosystem’s multidimensional feedback. It is thus recommended that priority should be given to areas of high sensitivity in the formulation of ecological protection policies and that a differentiated three-tier control system of “strict control of the core - protection of mountainous areas - optimization of transition zones” should be established to provide a scientific basis for ecological environmental protection and sustainable land use in urban agglomerations.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Ecological sensitivity analysis of the Chengdu–Chongqing urban agglomeration toward the Yangtze river economic belt in China

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月15日

查看全文
  • Meicen Chen,
  • Ling Wang

摘要

The China’s Chengdu–Chongqing Urban Agglomeration (CCUA), located in the Yangtze River Economic Belt and centered on Chengdu and Chongqing, is an important growth pole in western China. However, rapid urbanization and intensive human activities have triggered significant ecological imbalances, threatening regional sustainability and the ecological health of the Yangtze River Basin. To address this critical challenge and provide scientific support for ecological protection policies, this study evaluates the ecological sensitivity of the CCUA. Taking the CCUA as the study area, this study constructed an ecological sensitivity evaluation index system for the CCUA, comprising six criterion layers: driving force, pressure, state, impact, response, and management, using the DPSIRM model. The spatial characteristics of the ecological sensitivity of the CCUA were also analyzed in-depth by establishing the Hierarchical Analysis method (AHP)-Ordered Weighted Average Arithmetic (OWA) weight distribution model. The results of the study show that under the optimistic scenario, the ecological sensitivity of the CCUA presents a spatial pattern of “high in the urban core and low in the periphery, high in the mountainous areas and low in the plains” and exhibits significant geographic-economic coupling characteristics, and the areas of no sensitivity, low sensitivity, moderate sensitivity, high sensitivity, and extreme sensitivity account for 5.30%, 35%, 42.37%, 16.65%, and 0.56% of the total area, respectively. In the pessimistic model, low-sensitive areas dominate, while the area of highly sensitive areas decreases sharply. In the neutral model, all sensitive areas exhibit a balanced distribution that is closer to the actual ecosystem’s multidimensional feedback. It is thus recommended that priority should be given to areas of high sensitivity in the formulation of ecological protection policies and that a differentiated three-tier control system of “strict control of the core - protection of mountainous areas - optimization of transition zones” should be established to provide a scientific basis for ecological environmental protection and sustainable land use in urban agglomerations.