| Qinhuangdao is located in the shortage of water resources in north China’s province ofHebei in the northeast. It is a hydropenic region of "resource shortage" and "watershortage" coexistence. In recent years, along with the further deepening of reform andopening up, the rapid development of national economy, urbanization and people’s livingstandards improved significantly. The shortage of water resources and pollution hasbecome the bottleneck of restricting sustainable development of Qinhuangdao, and wateruse efficiency and management level and at the same time needs to be improved. So toexplore water resources development and utilization status, how to effectively controlwater, reasonable planning of the water, is the realization of sustainable utilization of waterresources and social sustainable development of the fundamental problems in Qinhuangdao.In order to break the restriction of water shortages on the local development inQinhuangdao, promote the healthy development, a thorough research on the problem ofwater shortages in Qinhuangdao, the main research contents are as follows:First of all, the application of integrated water resources planning in the field ofwater-saving, puts forward the concept of integrated water resources planning and itsimplementation significance, in the light of the concrete situation of Qinhuangdao, thepossible difficulties and countermeasures are put forward.Second, the water conservation of Qinhuangdao as a system was studied. It isresearched and analyzed water supply, water used, water saving and sewage disposal inQinhuangdao. Research is mainly focused on the variation characteristics of water calendaryear in Qinhuangdao, the potential of water saving, and to forecast the future waterdemand and water saving is closely related to the problem, and objective evaluation of theexisting problems in Qinhuangdao.Third, it adoptions method of systematically dynamics carry on city waterrequirement that overcome tradition predict the drawbacks of method. It can predict thewhole level of development of the system with fewer variables, because of lacking thebasic data and quantitative expression is difficult to establish, and guarantee certainprecision. This method analyzed that the social water cycle part and the causal relationshipbetween various factors and map out the system flow diagram. It determines the comprehensive water consumption per capita, sewage back and other variables. Systemdynamics equation is established at the same time, determine the parameters andassignment, calculation and software debugging each equation input simulation model as aresult, to predict water requirement. It can be pursuant to water resources in the overallplanning of Qinhuangdao, analyzed the supply and demand balance of water resources andput forward the amount of water necessary to the development of Qinhuangdao.Finally, according to predict water requirement of Qinhuangdao, it set of practicalwater conservation planning goals and water-saving implementation strategies. Watersaving strategies mainly include open source and throttling, namely, the development andutilization of all kinds of water resources and reduce the waste of water resources; Calledfor by the competent department of water resources by making regional water resourcesprofessional planning, optimize water management and form a complete set of policies andmeasures, etc. to ensure water conservation planning to finish; strengthen the public’sawareness of floods and launched a variety of ways to save water; increase thedevelopment and utilization of unconventional water such as wastewater reuse, rainwaterutilization and seawater desalination, and so on. |
