陆面-水文耦合模型系统在淮河流域的构建及应用  

Land Surface-Hydrology Coupled Model:Establishing and Applying to the Huaihe River Basin

作　　者：翟春玲[1,2] 余钟波[2] 郝振纯[2] 孙永宾[1] 姚峰[1] 王铭业[1] 刘臣亮[1] 韩尚峰[1] 谷黄河[2] 王兴平[1,2] 

机构地区：[1]国网电力科学研究院/南京南瑞集团公司,江苏南京210003 [2]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098

出　　处：《冰川冻土》2012年第1期139-146,共8页Journal of Glaciology and Geocryology

基　　金：国家重点基础研究发展计划(973计划)项目(2010CB951101);国家自然科学基金项目(40830639;40911130507;50979022);水文水资源与水利工程科学国家重点实验室专项经费(1069-50986312;1069-50985512)资助

摘　　要：以淮河流域为研究对象,选择分布式水文模型HMS,结合GIS技术,通过构建数字流域,提取流域特征信息,最终构建了分布式陆面-水文耦合模型(LSX-HMS).采用扰动分析法进行参数敏感性分析,利用实测水文资料进行参数率定和模型验证,确定性系数达0.760～0.939,表明该耦合模型在淮河流域具有较好的适用性.应用LSX-HMS对淮河蚌埠以上集水区域1980—1987年8a平均降水、蒸散发、日径流量和相对土壤含水量的空间分布进行了模拟.结果表明:各水文要素的空间分布存在较大的差异性,降水要素的分布呈随纬度递减的趋势;蒸散发和径流量两个变量都是上游小,中下游大;相对土壤含水量在研究区西部及西南部的山区和丘陵区较低,平原区较高.研究成果为淮河流域水土资源合理开发利用、调配和管理提供依据.With the distributed hydrology model system（HMS） and Geographical Information System and the technology of remote sensing for data spatial analysis,by building digital watershed,and then extracting watershed characteristic information,a land surface-hydrology coupled model（LSX-HMS） was established for the Huaihe River basin.The perturbation analysis for parameter sensitivity is employed.Measured hydrologic data were used to calibrate and validate the model.The Nash-Sutcliffe coefficient ranges from 0.760～0.939,indicating that the coupled model has good applicability in the basin.The spatial distribution of 8-year（from 1980 to 1987） average precipitation,evapotranspiration,streamflow and soil moisture are simulated by the LSX-HMS model.It is found that there is a large difference among the spatial distribution of each hydrological variable,precipitation decreases with latitude,evapotranspiration and streamflow are small in upstream and are large in middle and downstream,soil moisture is lower in the basion＇s west and southwest with mountain and hills and is higher in the region with plain.This research provides a basis for developing,utilizing,allocating and managing water and soil resources in the Huaihe river basin.

关 键 词：LSX-HMS模型 参数敏感性分析 淮河流域 耦合模型 

分 类 号：P339[天文地球—水文科学]