【摘要】 以汉江干流10个地级市为研究对象,计算2008-2015年水足迹参数,实现水足迹的时空分析;从PSR视角,构建水资源可持续利用综合评价体系,采用熵权灰靶模型评价2015年汉江干流水资源可持续利用强度。结果表明:①2008-2015年汉江干流水足迹呈缓慢增长态势,增长率24.28亿m~3/a;农业水足迹占比最大,平均为87.78%。②水足迹经济效益仅武汉市最高,为62.72元/m~3,其余各市集中在9～22.72元/m~3;水资源压力指数仅汉中、安康和十堰三市较小。③2015年汉江干流各市综合水资源可持续利用水平多集中在中、差等级,仅上游的汉中和安康市为优等级;就准则层而言,均表现为上游的可持续性优于中下游,其中,响应层的可持续性最佳,压力层的可持续性最差。更多还原

【Abstract】 In this paper, the water resources in main stream of Hanjiang River was taken as the research object. Firstly, the water footprints of 10 cities around main stream of Hangjiang River from 2008 to 2015 were calculated to realize the spatial-temporal features analysis of the water footprint parameters. Then, based on PSR theory, a comprehensive index system, including water footprint indexes and regular indicators, was constructed for the sustainable utilization of water resources. Afterwards, the entropy weight method and grey target model were used to evaluate the spatial difference of sustainable utilization level of water resources in main stream of Hanjiang River in 2015. The results showed as follows: ① the total water footprint was slowly increasing during 2008 to 2015 with the increase rate of 24.28×10~8 m~3 per year, and water footprint of agricultural production played the dominant percentage in the total water footprint, averagely accounting for 87.78%. ② The largest economic benefits per unit water footprint was in Wuhan with 62.72 yuan/m~3, while the values were concentrated between 9 and 22.72 yuan/m~3 in the all remaining cities. And the weakest pressure index of water resource was in Hanzhong, Ankang and Shiyan, while the values exceeded 2 in the remaining cities. ③ In 2015, the sustainable utilization of water resources was dominated by the middle and poor grades in middle and lower reaches of main stream of Hanjiang River, and only Hanzhong and Ankang in upstream reached good level. Similarly, standard layers also presented better level in upstream than in middle and lower reaches for sustainable utilization level of water resources.更多还原