基于灰水足迹的长江经济带水资源生态补偿标准研究

建立基于水污染的水资源生态补偿标准模型是当前生态经济领域的研究热点之一。通过核算长江经济带11省市2006～2015年的灰水足迹,构建了长江经济带省际水资源生态补偿模型,对长江经济带省际水资源生态横向补偿问题进行了探讨。结果表明:(1)2007～2016年间,长江经济带在经济总量迅速增长的背景下,总灰水足迹基本维持不变,且农业灰水足迹始终占最大比重;(2)从灰水足迹负荷指数看,下游省份负荷较高,上中游负荷相对较低;(3)从生态补偿横向支付情况看,上海、江苏、安徽、湖北一直为水资源生态补偿支付地区,而云南、贵州、四川、湖南、江西一直为水资源生态受偿区域。

Study on Ecological Compensation Standards of Water Resources Based on Grey Water Footprint:A Case of the Yangtze River Economic Belt

Establishing a water resources ecological compensation standard model is one of the research hotpots in the current ecological economy. This paper constructs an inter-provincial ecological compensation model of water resources for the Yangtze River economic belt by accounting for the grey water footprint of the eleven provinces/cities in the Yangtze River economic belt from 2007 to 2016. The results indicate:(1)The total grey water footprint of the Yangtze River economic belt in 2007-2016 showed a small fluctuation trend, with the highest proportion of agricultural grey water footprint;(2)The grey water footprint load index of the eleven provinces/cities in the Yangtze River economic belt is roughly divided into five categories, with the high indexes main locate in downstream areas and the low indexes are most in upper and middle Yangtze River; (3) From the perspective of inter-provincial ecological compensation, it could be found, in 2007-2016, some regions such as Yunnan, Guizhou, Sichuan, Hunan, and Jiangxi, has always been the areas for receiving ecological compensation, while other areas like Shanghai, Jiangsu, Anhui, and Hubei are regions to pay ecological compensation.