文献类型：期刊文献

中文题名：不同坡度和前期土壤含水率条件下裸地降雨产流试验研究

英文题名：Rainfall runoff test on bare soil with different slope gradient and soil moisture content

作者：穆文彬[1,2] 李义豪[1,3] 李传哲[1] 刘佳[1] 程双虎[4] 赵娜娜[5]

第一作者：穆文彬

机构：[1]中国水利水电科学研究院流域与水循环模拟与调控国家重点实验室;[2]华北水利水电大学黄河科学研究院;[3]东华大学环境科学与工程学院;[4]河北省水文水资源勘测局;[5]中国林业科学研究院湿地研究所

年份：2016

卷号：14

期号：6

起止页码：6-11

中文期刊名：南水北调与水利科技

外文期刊名：South-to-North Water Transfers and Water Science & Technology

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

基金：水利部绩效评估试点项目"变化环境下平原区降水产流演变机理研究"(1232);国家自然科学基金项目(51209225;51409270);国家国际科技合作专项(2013DFG70990)~~

语种：中文

中文关键词：前期土壤含水率;坡度;降雨产流;土壤入渗率;裸地

外文关键词：antecedent soil moisture content; slope gradient; rainfall-runoff; soil infiltration rate; bare soil;

分类号：P334.2

摘要：坡度和前期土壤含水率是降雨产流过程的重要影响因素。为研究华北半干旱地区的降雨产流机制,采用人工模拟降雨的方法,进行了不同坡度(5°、10°和15°)和前期土壤含水率(0.20、0.25和0.30)条件下的降雨产流试验。结果表明:在整个降雨产流过程中,地表径流量随坡度和前期土壤含水率的增加而增大,累积径流量与产流历时呈线性函数关系;土壤入渗率和产流滞时均随前期土壤含水率和坡度的增加而减小,且前期土壤含水率对土壤入渗率和产流滞时的影响较坡度更加明显;Horton模型对降雨入渗关系的拟合结果优于Kostiakov和Philip模型。
Antecedent soil moisture content and slope gradient are significant influential factors for rainfall-runoff（RR）process.In order to study the RR mechanism of semi-arid region in the North China,artificial RR simulation test was carried out in the condition of different slope gradient and antecedent soil moisture content.According to the results：（1）In the whole RR process,the overland flow increased with the increase of antecedent soil moisture and slope,and the relationship between cumulative runoff and rainfall duration complied with a linear function.（2）Soil infiltration rate and runoff lag time decreased with the increase of antecedent soil moisture content and slope,and the influence of antecedent soil moisture on soil infiltration rate and runoff lag time was more obvious than that of slope.（3）Horton model was better than Kostiakov and Philip model in fitting the relationship between rainfall and infiltration.