Research On The Decoupling Of Ecological Footprint-Based Water Resources And Urbanization In Hebei Province

Urbanization is a necessary stage of social and economic development,and its negative externalities have become a hot issue at present.Meanwhile,water resources,as a basic and strategic resource in urban development,have an important impact on the development of urbanization.Hebei province is one of the provinces with the most severe water shortage in China.Ecological footprint research plays an important role in measuring the sustainable use of regional resources.Based on the comprehensive evaluation of water ecological footprint and urbanization development level in Hebei province,this paper studies the decoupling relationship between the two and the driving factors,so as to provide a theoretical basis for the policy making of sustainable utilization of water resources in the urbanization process of Hebei province under the background of the integration of Beijing,Tianjin and Hebei.First of all,it analyzes the situation of water resources and current situation of urbanization development in Hebei province,and summarizes relevant policies of water resources management and urbanization development.Secondly,through the ecological footprint model,the sustainable development capacity of water resources in Hebei province was studied and analyzed from the aspects of water ecological footprint,water resource carrying capacity,water ecological deficit and water resource carrying capacity.At the same time,through the comprehensive development index model,the development level of urbanization in Hebei province was comprehensively evaluated from four aspects: population,economy,space and society.Finally,Tapio model was used to analyze the decoupling relationship between urbanization and water ecological footprint in Hebei province from the comprehensive perspective of total water ecological footprint and the single perspective of different water accounts,and the main influencing factors of urbanization on water ecological footprint decoupling were explored through the decomposition of LMDI factors.The results show that :(1)the total water ecological footprint of Hebei province from 2000 to 2017 increased first and then decreased.Among them,the ecological footprint of agricultural water and sewage accounts for the largest proportion.Water resources are in the stage of ecological deficit for a long time,the prospect of continued development is not objective,and the overall situation is unsustainable.(2)the comprehensive development index of urbanization in Hebei province shows an obvious upward trend,among which economic urbanization and social urbanization have a greater impact on the overall urbanization level.(3)the decoupling state of water ecological footprint and urbanization in Hebei province shows a stable trend of alternating between weak decoupling and strong decoupling.Among them,the decoupling state of urbanization on agricultural water,industrial water and sewage ecological footprint has been continuously optimized.(4)the economic effect,structural effect and population effect in the urbanization process of Hebei province hinder the decoupling of water ecological footprint from urbanization,while the technological effect is the main driving factor to promote the decoupling of water resources from urbanization.Based on the research,the paper puts forward policies and measures such as transforming the urbanization development mode,establishing water-saving urban and rural system,strengthening water resources management,carrying out groundwater overexploitation treatment and water pollution treatment,and constantly optimizing the decoupling state of water resources from urbanization in Hebei province.