基于多种水文学方法估算渭河关中段生态基流  

ECOLOGICAL BASEFLOW IN THE GUANZHONG REACH OF THE WEI RIVER ESTIMATED BY USING DIFFERENT HYDROLOGICAL METHODS

作　　者：于松延[1] 徐宗学[1] 武玮[1] 

机构地区：[1]北京师范大学水科学研究院,水沙科学教育部重点实验室,北京100875

出　　处：《北京师范大学学报（自然科学版）》2013年第2期175-179,共5页Journal of Beijing Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(51279005);国家水体污染控制与治理科技重大专项资助项目(2009ZX07212-002-003)

摘　　要：根据林家村和华县两个水文站1961—1980年径流资料,采用Tennant法、Texas法等6种水文学方法分析估算渭河关中段生态基流量,结合渭河径流年内分布特点对比分析计算结果.其结果表明,Tennant法表现最优,Texas法表现其次.在此基础上将生态基流量与不同水平年的河道实际流量进行对比,评估分析河道生态基流的保证程度,结果显示近年来渭河关中段生态基流量在一定程度上难以得到有效保障,渭河干流大规模的引水工程严重影响了河道生态功能的实现,基于生态基流的生态调度、灌溉节水等措施亟需尽快实施.Ecological baseflow at Linjiacun and Huaxian stations was estimated by using six hydrological methods including the Tennant method, Texas method et al. with the runoff data during 1961-1980. The results showed that the Tennant method was the most suitable one in the Guanzhong reach of the Wei River, and the Texas method was in the second place. Then the estimated ecological baseflow was compared with the actual runoff in different representative years to evaluate the degree of safeguard for ecological water requirement. The results indicated that to some extent it was difficult to maintain the ecological baseflow in the study area. In order to improve the ecological functions, some kinds of measures such as ecological operation of reservoirs and watersaving irrigation, should be implemented in the future.

关 键 词：生态基流 渭河 关中段 

分 类 号：TV74[水利工程—水利水电工程]