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1 概述唐河流域属北亚热带湿润地区,夏秋两季多东南风,炎热多雨,冬春季盛行西北风,气候干燥少雨。流域多年平均降水量为820mm,最大年降水量为1294.6mm,最小年降水量为551.4m
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1 概述唐河流域属北亚热带湿润地区,夏秋两季多东南风,炎热多雨,冬春季盛行西北风,气候干燥少雨。流域多年平均降水量为820mm,最大年降水量为1294.6mm,最小年降水量为551.4mm。由于本流域上游为伏牛山山区,中下游地处南阳盆地,降雨量受地形的影响,在地区上分布不均匀,由上游向下游递减。年降水量大多集中在6～9月,占全年的70％,因此洪水一
1 Overview The Tanghe Basin belongs to the humid north subtropics. There are many southeastern winds in summer and autumn, which are hot and rainy. The winter and spring prevails in the northwest, and the climate is dry and drizzle. The average annual precipitation in the basin is 820 mm, the maximum annual rainfall is 1294.6 mm, and the minimum annual precipitation is 551.4 mm. Since the upper reaches of the basin are Funiu Mountain, the middle and lower reaches are located in the Nanyang Basin. The rainfall is affected by the terrain and unevenly distributed in the region, decreasing from upstream to downstream. The annual precipitation is mostly concentrated in June to September, accounting for 70% of the year, so the flood one
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