长江流域资源与环境 >> 2024, Vol. 33 >> Issue (1): 175-188.doi: 10.11870/cjlyzyyhj202401015

• 生态环境 • 上一篇    下一篇

四川省生态韧性与生态风险的时空变化及生态分区构建

朱容,干晓宇*,李梓杉   

  1. (四川大学建筑与环境学院,四川 成都 610065)
  • 出版日期:2024-01-20 发布日期:2024-02-01

Spatio-temporal Changes of Ecological Resilience and Ecological Risk and Construction of Ecological Zones in Sichuan Province

(College of Architecture and Environment, Sichuan University, Chengdu 610065,China)   

  1. (College of Architecture and Environment, Sichuan University, Chengdu 610065,China)
  • Online:2024-01-20 Published:2024-02-01

摘要: 城市的快速扩张增加了生态系统所承受的压力和胁迫,进而导致一系列的生态问题。探究生态系统化解风险的韧性强度以及城市面临的生态风险强度,有助于权衡区域资源开发建设与生态保护。以四川省为研究区,通过构建定量评价指标,分析了四川省生态韧性水平和生态风险水平的时空变化特征,并采用Z-score标准化方法识别了研究区“韧性-风险”生态分区。结果表明:(1)动态变化特征方面,2000~2020年间,四川省综合生态韧性水平整体呈波动下降的变化趋势,而综合生态风险水平整体趋于稳定,但局部地区则有所恶化;(2)空间分布特征方面,四川省生态韧性呈现出“东西两端低,中间高”的空间分布格局,而生态风险则呈现出“西低东高”的空间分异特征;(3)结合“韧性-风险”生态分区,可将四川省划分为重点保护区、合理开发区、保护权衡区和开发权衡区。“韧性-风险”生态分区的构建,可以更精准地通过严守生态红线等管控策略提高研究区生态韧性及降低生态风险,是未来四川省实现可持续发展的有效途径。

Abstract: The rapid expansion of cities increases the pressure and stress on urban ecosystems, leading to a series of ecological problems. Exploring the resilience of ecosystems and the intensity of ecological risks can help balancing regional development and ecological protection. Taking Sichuan Province as the research area, this paper analyzed the spatio-temporal variation characteristics of ecological resilience and ecological risk levels by constructing quantitative evaluation indicators. The Z-score standardized method was used to identify the "resilience-risk" ecological zone in the study area. The results showed that: (1) in terms of dynamic change characteristics, the overall ecological resilience level of Sichuan Province showed a declining trend during 2000-2020, while the overall ecological risk level tended to be stable; (2) in terms of spatial distribution characteristics, the ecological resilience of Sichuan Province showed a spatial pattern of "low in the east and west, high in the middle", while the ecological risk showed a spatial pattern of "low in the west and high in the east"; (3) combined with the "resilience-risk" ecological zoning, Sichuan Province may be divided into four areas, including key protection areas, rational development zones, protection tradeoff zones and development tradeoff zones. The construction of "resilience-risk" ecological zones can accurately improve the ecological resilience of the study area and reduce ecological risks by implementing strict control measures such as defending the ecological protection red line, which is an effective way to achieve sustainable development in Sichuan Province in the future.

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