摘要
降水是地球上陆地各种水体的直接或间接补给源。根据青海湖流域降水量资料采用Kendall秩次检验、Spearman秩次检验及线性趋势回归检验3种方法对流域内降水量变化趋势进行了分析计算,得出了降水量增加趋势比较明显的结论,说明青海湖水位近十几年下降趋势变缓是由于降水量的增加引起的。研究结果为该流域降水和水资源预测提供参考。
Precipitation is the direct or indirect supply source of various water body in land. According to Qinghai lake basin precipitation data and using the three methods of Kendall rank time, Spearman rank time and linear trend regression test , the paper calculated and analyzed the variation trend of precipitation in the basin , and got the conclusion that the increase trend of precipitation is obvious, the decline of wa- ter level in Qinghai lake for ten years become slow because of the increase of precipitation. The result can provide reference for the prediction basin rainfall and water resources.
出处
《水资源与水工程学报》
2013年第4期217-219,224,共4页
Journal of Water Resources and Water Engineering
关键词
降水量
变化趋势
青海湖
precipitation
change trend
Qinghai Lake
