水土保持通报2011，Vol.31Issue(5)：28-31,4.
基于水文要素的黄土丘陵区次降雨泥沙输移比模型
Modeling Sediment Delivery Ratio of Single Rainfall Events in Hilly-Gullied Loess Region Based on Hydrologic Elements
摘要
Abstract
Qiaogou watershed,located in the hilly-gullied loess region,was chosen as the study area.Based on the observed data from the natural runoff plots and hydrological stations built on different landscape positions,the temporal and spatial characteristics of sediment delivery ratios（SDR） under single rainfall events were discussed.The dominant factors affecting the SDR were determined by correlation analysis.The results show that the antecedent soil moisture content,rainfall characteristics,runoff erosivity power and sediment relative bulk density were the main factors controlling the SDR in this area.Using these dominant elements,a sediment delivery ratio formula was built by nonlinear regression analysis.关键词
泥沙输移比/次降雨/径流侵蚀力/黄土区Key words
sediment delivery ratio/single rainfall/runoff erosivity power/hilly-gullied loess region分类
建筑与水利引用本文复制引用
王玲玲,姚文艺,王昭艳,杨吉山..基于水文要素的黄土丘陵区次降雨泥沙输移比模型[J].水土保持通报,2011,31(5):28-31,4.基金项目
黄土高原土壤侵蚀与旱地农业国家重点实验室基金项目“黄土丘陵区小流域次暴雨泥沙输移过程研究” （）
黄河水利科学研究院基本业务费专项“黄土高原分布式水沙模型的尺度转换研究” （）
水利部公益性行业科研专项“黄土高原多沙粗沙区产水产沙数学模型研究与应用” （）
