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1 自然环境状况驻马店市位于河南省东南部,西部是伏牛、桐柏两山余脉,东部为冲积平原,其间有洼、岗地分布,平原占全区面积的68.6%,地势由西北向东南倾斜,地面坡降为0.1%～0.25%,最高海拔983m,最低处海拔32m。多年平均降水量为920mm,区域内降水具有以下特征:①年际变化大;②四季分配不均匀;③地区差异明显;④强度大:日最大降水量泌阳县、确山
1 natural environment Zhumadian City is located in southeastern Henan Province, the western part of the Funiu, Tongbai two mountains of the veins, the eastern alluvial plain, between the depression, the post distribution, the plain area of 68.6% of the total area, topography from northwest to southeast Tilt, the ground slope is 0.1% ~ 0.25%, the highest elevation of 983m, the lowest elevation of 32m. The average annual precipitation is 920mm. The regional precipitation has the following characteristics: ① large interannual variation; ② uneven distribution of seasons; ③ obvious regional differences; ④ strong intensity: maximum daily precipitation Biyang County,