摘要
通过计算沙河水平口水文站以上流域1960年-2006年径流量，得出径流量变化趋势。运用模比系数差积曲线、数理统计法等从流域降雨量、用水量及下垫面条件三个方面分析各自对径流量变化贡献程度，得出下垫面变化对径流变化的影响最大结论。
This paper calculates 1960-2006 annual runoff in the upstream basin of Shuipingkou hydrological station in Shahe River and draws trend of runoff volume. Utilizing accumulative curve of modulus coefficient and mathematical statistics method, it analyzes the influence to run-off volume from the aspects of rainfall, water consumption and underlying surface, and draws a conclusion that the greatest influence on the runoff volume is the underlying surface transformation.
出处
《南水北调与水利科技》
CAS
CSCD
2011年第A02期85-87,90,共4页
South-to-North Water Transfers and Water Science & Technology
关键词
径流量
影响因素
贡献程度
water inflow
influence factor
degree of influence
