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一、水资源概况及开发利用情况1、概况榆林市位于陕西省最北部,东濒黄河,北接内蒙,西临宁夏、甘肃,南与延安市接壤,地理坐标为东径107°15′—111°14′北纬36°50′—39°35′,总土地面积43578km~2,占陕西省总土地面积的21.2%,海拔高度900—1500m。黄河由本市东界南下,境内长441.0km。地貌形态可划分为风沙区、黄土丘陵沟壑区、土石山区和河源梁涧区四种不同类型的区域。
I. General Situation of Water Resources and Exploitation and Utilization 1. Overview Yulin City is located in the northernmost part of Shaanxi Province. It borders on the Yellow River to the east, Inner Mongolia to the north, Ningxia, Gansu to the west, and Yan’an City to the south. The geographical coordinates are 107 ° 15’- 111 ° 14 ’north latitude 36 ° 50’-39 ° 35’, the total land area of 43578km ~ 2, accounting for 21.2% of the total land area in Shaanxi Province, the altitude of 900-1500m. The Yellow River east from the city south, the territory of 441.0km long. Landform morphology can be divided into wind and sand area, loess hill and gully area, earth and rock mountain area and Liangyuan four areas of Heyuan.