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1 海淀区的水土资源及灾害 海淀区位于北京市的西北部,全区总面积426.03km~2。地势西高东低,西部海拔100m以上的山地面积为70.50km~2,占总面积的16.5％;东部和南部是海拔50m左右的平原,面
1 Water and Land Resources and Hazards in Haidian District Haidian District is located in the northwest of Beijing. The total area of the area is 426.03km ~ 2. The terrain is high in the west and low in the east. The mountainous area above 100m above sea level in the west is 70.50km ~ 2, accounting for 16.5% of the total area. The eastern and southern plains are about 50m above sea level