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鉴于南水北调中线工程水源区生态补偿是协调水源区与受水区区域发展的重要机制,先依据中国大陆单位面积生态服务价值当量测算水源区生态服务价值量,再按照区域生态服务价值与GDP比值计算了水源区不同行政区域的生态补偿优先系数,最后按照水源区生态补偿优先级别划分方法将水源区生态补偿优先次序划分为四个级别。结果表明,中线水源区最高级别的补偿区域共有6个县,其中5个县隶属陕西省,1个县隶属湖北省;生态补偿级别较低的县(区)共有4个,主要包括汉台区、张湾区、茅箭区和神农架林区等。
In view of that the ecological compensation in the water source area of the midline of the South-to-North Water Diversion Project is an important mechanism for coordinating the development of water source areas and water receiving areas, the ecological service value of water source areas is first estimated based on the equivalent value of ecological services per unit area of China and then calculated according to the ratio of regional ecosystem services to GDP According to the priority classification of ecological compensation in water source area, the ecological compensation priority of water source area is divided into four levels. The results show that there are 6 counties with the highest level of compensation in the middle-line water area, of which 5 are under the jurisdiction of Shaanxi Province and 1 is under the jurisdiction of Hubei Province. There are 4 counties (districts) with low ecological compensation rates, including Hantai Zhangwan District, Maojian District and Shennongjia Forest District.