SCS模型在小型集水区降雨径流计算中的应用  

SCS MODEL APPLICATION ON CALCULATION OF SMALL WATERSHEDS RAIN RUNOFF

作　　者：徐秋宁[1] 马孝义[1] 安梦雄[1] 姬雅珍[1] 

机构地区：[1]西北农林科技大学水利与建设工程学院,陕西杨凌712100

出　　处：《西南农业大学学报（自然科学版）》2002年第2期97-100,107,共5页Journal of Southwest Agricultural University

基　　金：国家自然科学基金 (49871 0 4 0 );陕西省科技攻关项目 (98K0 3 -G4)资助项目

摘　　要：用SCS降水—径流模型对陕北、渭北多个小型集水区降雨径流量进行了分析与计算。结果表明 :SCS降水—径流模型考虑了径流与土壤特性和土地利用情况的关系 ,简单易行 ,所需参数少 ,是一种较好的小型集水区径流计算方法 ,可用于小流域、沟道等小型集水区可集雨量的计算。该文还分析了模型参数与陕北、渭北土壤分区特征的关系 ,确定了陕北。SCS model was applied to calculate runoff amounts of several typical small watersheds in Northern Shaanxi and Weibei. The results showed that SCS model, which describes the relationship of runoff with soil characteristics and land utilization, was simple to use and needed relatively few parameters for the calculation of water harvesting amount of small watersheds. The relationship between model parameters and soil characteristics was analyzed. The model patameters of different districts in Northern Shaaxi and Weibei were decided.

关 键 词：可集雨量 SCS模型 土壤分区 降雨径流 计算 集雨节水灌溉 

分 类 号：S273.1[农业科学—农业水土工程]