面向国土空间规划的生态保护重要性评价——以陕西省韩城市为例

    IMPORTANCE EVALUATION OF ECOLOGICAL PROTECTION FOR TERRITORIAL SPATIAL PLANNING: A Case Study of Hancheng City, Shaanxi Province

    • 摘要: 结合韩城市自然资源禀赋特征及生态环境问题,采用多类型基础数据,以生态系统服务功能、生态敏感性两个指标及其次级指标逐级构建生态保护重要性评价体系,为韩城市国土空间规划、科学划定生态保护红线提供理论依据. 研究结果表明: 韩城市生态系统服务功能高等级区域面积为442.00 km2,以生物多样性维护功能为主导; 生态敏感性高等级区域占韩城市总面积的45.46%,以土地沙化、石漠化占主导作用; 生态保护高等级区域占韩城市总面积的52.51%,呈现出以黄龙山自然保护区为核心向东部、南部扩大的格局; 对生态保护重要性影响较高指标为土地沙化、石漠化和生物多样性维护功能.

       

      Abstract: Combined with the characteristics of natural resources endowment and ecological environment in Hancheng City, multiple types of basic data are used to progressively construct an evaluation system of ecological protection importance based on the ecosystem service function and ecological sensitivity indexes as well as their secondary indexes, which provides theoretical basis for the territorial spatial planning and scientific delineation of ecological protection redline in Hancheng City. The results show that the high-level area of ecosystem service function is 442.00 km2, dominated by biodiversity conservation function. The high-level area of ecological sensitivity accounts for 45.46% of the total area of Hancheng City, with land sandification and rock desertification playing the leading role. The high-level area of ecological protection accounts for 52.51% of the total area the city, showing an expanding trend to east and south from the Huanglong Mountain Nature Reserve. The soil sandification, rock desertification and biodiversity conservation function have great impact on the importance of ecological conservation.

       

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