摘要
以黄河万家寨水库流域河口镇至万家寨坝址区间(下称河万区间)为研究区域,利用GIS/RS技术获取了该流域水循环空间分布信息,构建了黄河河万区间流域的SWAT模型,采用输入模块、水文单元和河网汇流对入库径流进行了模拟运算,并根据头道拐和万家寨水文站的实测月径流量资料,对2000—2009年万家寨水库的入库月径流量进行了系统的模拟、敏感性分析和参数率定,并用2000—2006年数据进行了模型校正和用2007—2009年数据进行了模型验证,同时对运行结果做了误差分析、降雨—径流关系分析及水量平衡分析。结果表明,SWAT模型基本上能反映河万区间的月径流水文过程,具有一定的适用性,为进一步预测降雨径流提供了技术支撑。
The interval between Hekou town and Wanjiazhai reservoir of Wanjiazhai river basin of the Yellow River was chose as the study area,in which the space distribution of water cycle obtained by GIS/RS technology.The hydrological model based on SWAT（Soil and Water Assessment Tool） model was set up in the study area.Monthly runoff was simulated by SCS runoff method with the actual measurement data of day runoff on the hydrological stations of Toudaoguai and Wanjiazhai from 2000 to 2009,in which 2000 to 2006 was taken as the calibration period and 2007 to 2009 was taken as the validation.Not only the systematic simulation,the sensitive analysis and the parameter calibration in calibration period,but also error analysis,precipitation-runoff analysis and water balance analysis in validation period were taken.At the same time,the uncertainty of the incoming flow was considered.The results showed that the SWAT system on the structure was reasonable,the correlation coefficient reaches more than 0.97 and Nash-Sutcliffe model efficiency coefficient reaches more than 0.96 both in the calibration period and in the validation.In the general,the simulation system could reflect the inflow runoff process perfectly.Therefore,the simulation result could provide the positive reference for the comprehensive utilization of water resources and proper reservoir operation in the Hewan valley of the Yellow River.
出处
《高原气象》
CSCD
北大核心
2012年第5期1446-1453,共8页
Plateau Meteorology
基金
内蒙古气象局科技创新项目(nmgxkjcx201012)资助
关键词
SWAT模型
入库径流模拟
黄河河万区间(河口镇至万家寨水库)
SWAT model
Simulation on runoff into the reservior
Hewan valley of Yellow River（between Hekou and Wanjiazhai reservior）
