生态红线划定方法及其在长江岸线中的应用

长江岸线产业发展和生态环境的矛盾突出,划分长江岸线的生态红线对于长江生态保护以及岸线的有序开发具有重要的意义。通过梳理生态红线的概念和内涵,概述生态红线的研究现状和理论基础,从生态敏感性、生态功能重要性、禁止开发区3个方面,建立长江岸线生态红线评价指标体系,最终阐明长江岸线生态红线的划定技术方法和流程。研究结果表明:长江岸线生态红线一级保护区长度为597.11 km,占长江岸线长度的7.55%,包括荆州、咸宁、安庆等部分岸段。生态红线一级保护区实施最严格的管控措施,禁止任何开发建设的活动。长江岸线生态红线二级保护区长度为1 171.29 km,占长江岸线总长度的14.81%,包括岳阳、池州、苏州等部分岸段。生态红线二级保护区应严格空间开发活动的强度,确保生态红线功能不降低,红线面积不减小,且不超过资源利用上线。该研究对于岸线科学合理利用和长江生态环境保护具有重要的理论价值和实践意义。

Ecological Red Line Demarcation Method and Its Application in the Yangtze River Coastline

The contradiction between industrial development and ecological environment along the Yangtze river is prominent. The demarcation of the ecological red line along the Yangtze river is of great significance to the ecological protection and the orderly development of the Yangtze river coastline. This paper combs the concept and connotation of the ecological red line, and summarizes the research status and theoretical basis of the ecological red line. This paper establishes the evaluation index system of ecological red line of the Yangtze River coastline from three aspects: ecological sensitivity, importance of ecological function and prohibition of development zones. Finally, the technical method and process of delimiting the ecological red line along the Yangtze River coastline are established. The ecological red line demarcation method is applied to the Yangtze river coastline. The research results show that the length of the first-grade protection zone of the ecological red line on the Yangtze River coastline is 597.11 km, accounting for 7.55% of the length of the Yangtze River coastline. It includes Jingzhou, Xianning, Anqing and other parts of the coastline. The ecological red line first-level protection zone implements the most stringent control measures and prohibits any development and construction activities. The length of the second-level protection zone of the ecological red line on the Yangtze River coastline is 1171.29 km, accounting for 14.81% of the total length of the Yangtze River coastline. It includes some shore sections such as Yueyang, Chizhou and Suzhou. The intensity of space development activities should be strictly controlled in the secondary ecological red line protection zone. The secondary protection zone should ensure that the ecological red line function is not reduced, the red line area is not reduced, and the resource utilization is not exceeded. This study has important theoretical and practical value and significance for constructing the ecological security pattern of the Yangtze River coastline.