山东省灰水足迹区域均衡性分析

Analysis of the Regional Equilibrium of Grey Water Footprint in Shandong Province

为了解山东省水环境整体均衡状况,采用灰水足迹法定量分析水污染状况,并通过基尼系数以及不平衡指数中的匹配距离对山东省灰水足迹进行区域均衡性评价。研究表明:①山东省灰水足迹在2005-2017年总体呈现出下降的趋势。在灰水足迹组成中,农业所占比例最大,其次是生活,工业所占比例最小。②人均灰水足迹地区差异较小,而灰水足迹强度和水环境压力地区差异较为明显。工业灰水足迹均衡性最差,农业灰水足迹均衡性最好。③菏泽市、德州市和聊城市的地区灰水足迹过大,临沂市的水环境压力最小,青岛市的灰水足迹强度最小,菏泽市灰水足迹强度最大。在此基础上,就提高山东省灰水足迹区域均衡性和匹配性提出了一些切实可行的建议。

In order to understand the overall equilibrium of water environment in Shandong Province,this paper uses the grey water footprint method to quantitatively analyze the water pollution status,and evaluates the regional equilibrium of the grey water footprint in Shandong Province through the Gini coefficient and the matching distance in the imbalance index.The research result showed that:①The grey water footprint of Shandong Province had shown a downward trend from 2005 to 2017.In the composition of the grey water footprint,agriculture accounts for the largest proportion,followed by life,and industry accounts for the smallest proportion.②The regional difference in grey water footprint per capita is relatively small,while regional difference in grey water footprint intensity and water environmental pressure is more obvious.The balance of industrial grey water footprint is the worst,and that of the agricultural grey water footprint is the best.③The regional grey water footprint of Heze City,Dezhou City and Liaocheng City is too large,Linyi City has the lowest water environment pressure,Qingdao City has the lowest grey water footprint intensity,and Heze City has the highest grey water footprint intensity.On this basis,some practical suggestions are put forward to improve the balance and matching of grey water footprint in Shandong Province.