成渝城市群生态保护红线分析及其配套政策建议  

Analysis on Ecological Protection Red Line of Chengdu-Chongqing Urban Agglomeration and Suggestions on Supporting Policy

作　　者：杨妃 李志刚[2] YANG Fei;LI Zhigang(College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China;College of Management Science,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]成都理工大学地球科学学院,成都610059 [2]成都理工大学管理科学学院,成都610059

出　　处：《西南大学学报（自然科学版）》2022年第9期133-143,共11页Journal of Southwest University(Natural Science Edition)

基　　金：国家社会科学基金项目(19XJY003).

摘　　要：生态保护红线的确定,为区域生态安全格局构建和生态空间保护政策的制定提供了重要的参考价值.以成渝城市群为例,综合考虑生态服务功能重要性、生态敏感性和自然保护区,确定研究区生态保护红线范围,运用修正的生态服务价值(ecosystem service value,ESV)评估模型,对红线内的ESV进行估算.结果显示:①成渝城市群生态保护红线的面积为45718.86 km^(2),占研究区总面积的24.71%,2000-2020年生态保护红线区域草地、耕地和湿地的面积减少,林地、水域和建设用地等土地利用类型的面积增加;②红线区ESV总量呈上升状态,但增幅减小,土壤保持、气体调节、生物多样性和水文调节是最主要的生态系统服务类型,且林地贡献了生态保护红线区域77.79%的ESV;③生态保护红线区单位面积ESV是整个研究区的1.36倍,各土地利用类型单位面积ESV从大到小依次为水域、湿地、林地、灌丛.研究区的生态环境治理得到改善,但治理力度有待进一步加强,应制定合理的区域配套政策,优化土地利用结构,提升治理能力现代化水平,实现成渝城市群高质量发展.The determination of ecological protection red line provides important reference significance for the construction of regional ecological security patterns and the formulation of ecological space protection policies.Taking the Chengdu-Chongqing urban agglomeration as the research object,comprehensively considering the importance of ecosystem services function,ecological sensitivity and nature reserve,the ecological protection red line of the Chengdu-Chongqing urban agglomeration was determined.This study uses the reconstructed ecosystem service value(ESV)assessment model to estimate the ESV within the ecological protection red line.The results show that:①The ecological protection red line zone of the Chengdu-Chongqing urban agglomeration covers an area of 45718.86 km^(2),accounting for 24.71%of the total area of the study area.From 2000 to 2020,the areas of grassland,cultivated land and wetland in the ecological protection red line area decreased,and the areas of land use types such as woodland,water area and construction land increased.②The ecosystem services value in the red line of the study area showed an upward trend,but the rate of increase decreased.Among them,soil conservation,air regulation,biodiversity and hydrological regulation are the most important functions,and woodland contributes 77.79%of ESV in the ecological protection red line area.③The ESV per unit area of the red line area of ecological protection was about 1.36 times that of the entire study area.The value of the ecosystem service unit area of each land use type was water area,wetland,woodland,and shrub in descending order.The ecological environment management of the study area has been improved,but the governance efforts need to be further strengthened.It is necessary to formulate reasonable regional supporting policies,optimize the land use structures,enhance the modernization level of governance capacity,and realize the high-quality development of Chengdu-Chongqing urban agglomeration.

关 键 词：生态保护红线 生态系统服务 配套政策 土地利用变化 

分 类 号：X321[环境科学与工程—环境工程]