CAJ | 학술논문

根据清河干流八棵树水文站、开原水文站1988－2009年径流量资料，选取Tennant法、90％保证率最枯月平均流量法、NGPRP法等5种水文学方法对清河干流生态基流进行了计算，通过对各水文学方法计算结果的对比分析，发现Tennant法更适合用于清河干流生态基流的计算。根据不同水平年清河干流生态基流Tennant法的计算结果，并与清河干流实际径流进行对比分析，表明随着不同水平年降雨量的减少，清河干流生态需水的满足程度逐渐减小。
근거청하간류팔과수수문참、개원수문참1988－2009년경류량자료，선취Tennant법、90％보증솔최고월평균류량법、NGPRP법등5충수문학방법대청하간류생태기류진행료계산，통과대각수문학방법계산결과적대비분석，발현Tennant법경괄합용우청하간류생태기류적계산。근거불동수평년청하간류생태기류Tennant법적계산결과，병여청하간류실제경류진행대비분석，표명수착불동수평년강우량적감소，청하간류생태수수적만족정도축점감소。
Based on the runoff data in Bakeshu station and Kaiyuan station from 1988 to 2009 ,the paper chose five hydrological methods including Tennant method , average flow method in the driest month with 90%frequency , NGPRP method to calculate the ecological baseflow of Qinghe river .According to the comparasiom and analysis of calculation result ,it discovered that Tennant method is the most sutible for baseflow calculation in main stream of Qinghe river .Based on the result of Tennant mthod ,the paper com-pared which with actual runoff .As the descrease of annual rainfall , it is more difficult to maintain the ec-ological baseflow in Qinghe river .