水科学进展2016，Vol.27Issue(1)：11-21,11.DOI:10.14042/j.cnki.32.1309.2016.01.002
小尺度径流空间差异性及成因探索——以青海省黄南州为例
Runoff spatial difference of small-scale in Huangnan, Qinghai province and its cause
摘要
Abstract
Meso-and large-scale hydrological measurements cannot indicate the spatial difference of small watershed. For exploring the spatial difference of small-scale runoff, the fifty rivers in Huangnan, Qinghai with the sampled area in 10—100 km2 are measured on August 14 to 23, 2013. Moreover, the temporal upscaling are also conducted. The results show that the differences of daily discharge modulus could be 20 times higher. It could be more than 4 times e-ven for the regions with similar precipitation. We find the runoff synchronicity in normal season for 3 stations with me-so-scale measurements. Based on this character, the daily runoff properity can be deduced to annual time scale. The precipitation and slope could play a dominant role in the spatial difference of small-scale runoff. The reconstructed pre-cipitation, precipitation loss and slope runoff model in this study can provide a useful tool in spatial scale conversion and accuracy improvement of hydrological analysis.关键词
径流/同步性/尺度/空间差异/青海黄南Key words
runoff/synchronicity/scale/spatial difference/Huangnan in Qinghai province分类
地球科学引用本文复制引用
段水强..小尺度径流空间差异性及成因探索——以青海省黄南州为例[J].水科学进展,2016,27(1):11-21,11.基金项目
国家自然科学基金资助项目(41261004) The study is financially supported by the National Natural Science Foundation of China(No. 41261004) . （41261004）
