The Importance Of Water Ecosystem Service Functions Evaluation In Hebei Province

Water resource is an essential basic natural resources to human survival, isone of the most important factors constraining environment and human survival and development. Hebei Province is a great water-deficient area, the unnormal water ecosystem service functions has become a bottleneck of influence and restrict economic, social sustainable development in the current and future. The paper evaluates the importance of Hebei water ecosystems service functions, divides Hebei water ecosystems importance into 4, intention in the first line of taking steps to the first critical areas and urgent protection, and then gradually extended to other areas. It will be important practical significance to the sustainable development of water resources in Hebei Province.The main contents of the paper includs: the first part, it introducs connotations of water ecosystems service functions. The second part, it introducs status of Hebei water ecosystem services function, and identifies the major problems of the current Hebei water ecosystems service functions. We start from a very important region for solving problems, urgent protect the first critical areas, and then gradually extend. The third part, it evaluates the importance of Hebei water ecosystem service functions, scientifically selects indicators, sets a evaluation indice of Hebei water ecosystem service functions, evaluats the Hebei water ecosystems service functions;Then using selection largest method, it comprehensivly evaluats Hebei water ecosystems service functions, and using Arcview systems, integrates assessment results and maps of Hebei water ecosystem service functions. The forth part, it looks forward to different types of water ecosystems protection measures to Hebei water ecosystem service functions critical areas. The researchs provides scientific basis for decision-making and information, for conducting appropriate protection and ecological construction projects ecological functions, to weaker Hebei water ecosystems service functions.Researchs show that:(1) Water resource in Hebei is seriously shortage, water ecosystem service functions is very weak, and has weakened;Water ecological processes ecological impedes or uses up;Ecosystem structure broken, the function harden;Water ecology regulation and control mechanism insufficient and water ecological awareness is low.(2) Hebei water ecosystem service functions critical areas include Baiyang Dian, Hengshui Ocean, Luan River estuary upstream (MengLuan River), Haixing, Nandagang and other protected areas;Gangnan, Huangbizhuang, Yuecheng, Dalang Dian, the West Ocean, Dou River, Yang River, Shi River, Tang River, Taolinkou, Zhuzhuang, Daheiting and Qiuzhuang mid-sized reservoirs;Luan River systems ants spit River, Dou River, Yixun River upstream, Yongding River water upstream of the Yang river, Huliu river, Sanggan River and the Sha River Wangkuai Daqing River water reservoir below, The Fuyang River, Hutuo River and Ye River of Ziya river systems, Qingzhang River and Zhang River of Zhangwei south Rive.(3) We should carries out ecological restoration to water ecosystem critical areas, appropriate development, the protection of its water resources, prevention degradation;We should establish water rights systems for very critical reservoirs, the rational allocation of water resources, prevention of pollution upstream;We should maintain their attention to the patterns of diversity and prevent water pollution to critical development rivers.The major work done in the following areas:(1) It systemly summarizes the connotations of the water ecosystem service functions, including the provision of resource, regulatory functions, cultural functions and life support functions of the four categories;(2) It the first time ystematicly and comprehensivly evaluats to water ecosystem service functions;(3) It scientificly sets evaluation indices, and their quantification, that is a difficult and innovative point;This text only first discusses water ecosystems service functions, and there are still many shortcomings, and by the author limited ability, omissions and anomalies inevitable, I urge experts criticize me.