河道内生态需水量研究

Research on river ecological water demand

随着社会经济发展对水资源的需求日益增加,河道内生态需水量往往得不到满足,导致河道生态环境逐步退化。阐述了河道内生态需水的确定原则,分析了现行各种计算方法的原理及其适用条件,在此基础上,针对多沙河流特点,提出将河道内生态需水量分为汛期输沙需水量和非汛期生态需水量。以沙河水系为例,选择黄庄水文站断面,对其河道内生态需水量进行研究。

As human beings＇ requirements to water resource become more and more,river ecological water demand isn＇t being met and river ecological environment degradation become serious. This paper analyzed the determination principle of river ecological water demand and discussed the applicable conditions of current calculation methods. On this basis,the author put forward to divide the river ecological water demand into sediment transport water in flood season and ecological base flow in nonflood season according to sandy river characteristics. Taking the Sha River as a case,this paper chose Huangzhuang hydrological station,and studied the calculation of the river ecological water demand.