摘要
为了高效简便地提取河网信息,文中以呼伦湖流域克鲁伦河为例,运用SWAT模型,对克鲁伦河进行河网划分,并对克鲁伦河国内部分进行地形分析。结果表明:当集水面积阈值为100 km2时,划分结果与流域实际最为接近;克鲁伦河国内部分大部分地势平坦,不易造成水土流失;北岸草原腹地太阳辐射较强,促进植物生长,同时也会引起土壤干旱。
To extract the information of river network efficiently, the Kerulen River in Hulun lake basin was used as an illustration. The SWAT model was applied in the Kerulen River to get its river network partitioning. The terrain of its domestic part was analyzed. It is indicated that when the threshold of the catchment is 100 km2, the extraction result is close to the actual basin. Most of the domestic part of the Kerulen River is flat that it cannot cause the soil erosion easily. The solar radiation of the north prairie heartland is strong that it will promote the plant growth but at the same time it can also cause soil drought.
出处
《山西水利科技》
2015年第4期55-58,共4页
Shanxi Hydrotechnics
