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1基本情况古浪县是甘肃省18个干旱县之一,位于河西走廊东端,东靠景泰,南连天祝,西北与武威接壤,北邻腾格里沙漠,总土地面积5287 km~2。地形基本分3种类型:南部山区,平均海拔2 500 m,含浅山地和高寒二阴地;中部为绿洲灌溉农业区。海拔1 700~2 000 m,含黄河提灌,库水灌溉和井灌3个灌区;北部为荒漠区。全县区域类别多,自然条件差异大,年平均气温5.57℃,年平均降水量290 mm,蒸发量2 292 mm,无霜期154 d左右。
1 Basic Situation Gulang County is one of 18 drought counties in Gansu Province. It is located at the east end of Hexi Corridor, east of Jingtai, south of Tianzhu, northwest of Wuwei and north of Tengger Desert with a total land area of 5287 km ~ 2. The terrain is divided into three basic types: the southern mountainous area, with an average elevation of 2 500 m, including shallow mountains and alpine two overcast areas; and the middle part is an oasis irrigated agricultural area. Eleven 700 ~ 2 000 m above sea level, including the Yellow River irrigation, irrigation and well irrigation three irrigation areas; the northern desert. There are many categories in the county with large differences in natural conditions. The annual average temperature is 5.57 ℃, the annual average rainfall is 290 mm, the evaporation is 2 292 mm, and the frost-free period is about 154 days.