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1小流域基本情况1.1自然条件辉县市吾玉河小流域位于辉县市西部上八里镇,地理位置介于东经113°30′～113°34′,北纬32°30′～32°33′之间,属海河流域卫河水系。地貌类型属中低山区,该流域地势总体上为西北高东南低,最高海拨1490.00 m,最低海拔108.00 m,相对高差1382.00 m,流域内沟壑纵横,土薄石厚,植被稀少,冲
1 Basic Conditions of Small Watersheds 1.1 Natural Conditions The Wuyuhe Small Watershed of Huixian County is located in Shangbally Town, western part of Huixian City. Its geographical location is between 113 ° 30 ’to 113 ° 34’ east longitude and 32 ° 30 ’to 32 ° 33’ north latitude Between, is the Haihe River Wei River system. The topography of the basin belongs to middle and low mountainous area. The topography of the basin is generally high in the northwest and southeast, with the highest altitude of 1490.00 m, the lowest elevation of 108.00 m and the relative height difference of 1382.00 m. The ravines in the drainage basin are long and thin,