Evaluation And Balance Analysis Between Supply & Requirement Of Water Resource In Liaocheng City

Evaluation and balance analysis between supply and demand of the water resource of Liaocheng city is propitious to the mastery of the rules of its dynamic variety.Searching effective measures for the scientific, reasonable and continuable exploitation and utilization is the base of the planning of water resource. It is also very important to the continuable and stable development of the economy and is of practical importance directive to social production and human life.The investigation and evaluation of the water resource of Liaocheng city are discussed in this paper, which involves evaluations to the resource of surface water and groundwater, the total amount of water resource, the quality of surface water and groundwater. For the evaluation to the surface water, after the analysis to the rainfall frequency, the runoff reduction method is adopted based on the zoning of water resource with assistance of mathematical statistics and empirical model. The reasonableness check and consistency analysis are also performed. For the evaluation to the groundwater resource, the major method is the regional equilibrium,and the hydrological geology data is selected experientially, assisted by analytic method, etc..The evaluation results indicate that the mean annual quantity of surface water resource of Liaocheng city is 266,760,000m~3 and that of groundwater is 1,325,560,000m~3, and the total amount of water resource is 1,184,670,000m~3. The available quantity of water resource is 1,092,270,000m~3. Without consideration of the workable reserve of the groundwater formed by interbasin water diversion, the mean annual available quantity of water resource is 839,250,000m~3.On the basis of the evaluation, in accordance with the forecast of the economy development up to 2010, this paper analyzes the equilibrium of supply and demand of water resource, offers the optimization and engineering scheme and suggests the policy measures in order to remit the serious regional water depletion and promote the continuable development of the economy and society of Liaocheng city.