期刊论文

中文

水土保持研究

1005-3409

2013

20

5

145-149

湖南农业大学东方科技学院科技创新项目（DFCXY201111）；

本校为第一机构

利用湖南省21个站点1961-2010年的日降水量数据和数理统计方法分析了近50 a湖南省年、季、月降水特征,以期为水资源的开发和防洪等提供数据参考.结果表明:(1)湖南省降水量主要集中在4-8月,占全年的63.09％;春夏两季多雨,约占全年降水量的36％和35％,秋冬两季少雨,仅占17％和12％.(2)降水最大年份2002年达1 964.95mm,最小年份1974年仅为1 104.19 mm,各年代年平均降水量比较接近,介于1 354.00～1 513.08mm之间;(3)全省多年平均暴雨量为305.75 mm,主要集中在5-8月,50 a年平均暴雨发生次数为4.1次;年暴雨量最大值为572.07 mm,出现在2002年,而最少的年份仅有150.12 mm,出现在1985年.总之湖南省降水量...

Based on the daily rainfall data at 21 stations in Hunan Province, the spatiotemporal features of an- nual, seasonal and monthly rainfall in the period of 1961 to 2010 were analyzed in order to provide data sup- port for sustainable use of water resource and flood controlling. The results were as follows： The rainfall in Hu＇nan Province mainly occurred from April to August, which accounted for 63.09% of total precipitation of the whole year. Rainfall in spring and summer occupied 36% and 35% of the annual precipitation while 17% and 12% in au...