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涇河流域位于东經106°～109°,北緯34°30′～37°15′之間。流域面積47800平方公里,本流全長443公里。子午嶺縱貫于东,拔海1300～1800公尺为涇洛分界;南部及西南有关山、六盤山,拔海1700～3200公尺,是涇渭分水嶺;北部羊圈山則为一較高的黄土邱陵,拔海約1900公尺,与清水河、山水河分界;中部略偏东南为廣大的黄土高原,拔海約1200～1500公尺,低于边緣山地邱陵約400～2000公尺,呈盆地狀,
The Jinghe River Basin is located between 106 ° ~ 109 ° E longitude and 34 ° 30 ’~ 37 ° 15’ north latitude. The basin area of 47800 square kilometers, the flow of 443 kilometers in length. Ziwu Ridge runs through the east and pull the sea 1300 ~ 1800 meters for the Jing Luo demarcation; southern and southwest of the mountains, Liupanshan, pull the sea 1700 ~ 3200 meters, is Jing Wei watershed; Northern Sheep Mountain was a higher Loess Qiu Ling, pull the sea about 1900 meters, and the Qingshui River, landscape river demarcation; southeast of the central part of the vast loess plateau, pull the sea about 1200 ~ 1500 meters, lower than the edge of the mountain Qiu Ling about 400 ~ 2000 Meters, was basin-shaped,