摘要
利用朱庄水库流域的长系列水文资料,用数理统计的方法分析流域内的降水量、径流量和蒸发量的变化特征及变化原因。分析结果:降水量呈递减趋势,根据该流域现有资料系列分析,平均每年减少2.7mm,减少数量最大的在7、8月;径流量变化也呈递减趋势,平均每年减少0.0557亿m3。减少幅度最大出现在8月份;水面蒸发量也呈递减趋势,平均每年下降10.2mm,汛期的水面蒸发量的减少量大于非汛期。受人类活动的影响下,使水文要素的特征和变化规律发生变化,研究和分析区域的水文要素变化规律,对开发利用水资源有重要意义。
This paper uses a long series of hydrological data of Zhuzhuang reservoir basin, and with the method of mathematical statistics to analyze the variation characteristics and changes reasons of precipitation, runoff and evaporation. The results show that： the precipitation decreased, according to the existing data series, the average annual reduce 2.7mm, the maximum reduce is in July and August; the runoff change also showed a decreasing tendency, and the average annual decrease is 5.57million cubic meters. The most drastic reduction is in August; water surface evaporation is degressive trend, and the average annual decline in 10.2mm, the water surface evaporation reducing weights greater than in non flood season. Influenced by human activities, the hydrological characteristics and regularity change, doing research and analysis of regional hydrological changes are important to the development and utilization of water resources.
出处
《水科学与工程技术》
2012年第6期9-12,共4页
Water Sciences and Engineering Technology
关键词
朱庄水库流域
人类活动
水文要素
变化特征
水资源开发利用
Zhuzhuang Reservoir Basin
human activity
hydrological factor
variation characteristics
the development and utilization of water resources
