摘要
采用Mann-Kendall检验法和谱分析方法,分析了宝鸡市1954-2004年的降水资料,得出了年降水序列存在着减少的趋势,而季降水序列分别存在着不同的变化趋势,特别是春季和冬季,春季降水呈现出较为显著的减少趋势,冬季降水则与之相反,呈现出增加的趋势,夏秋两季的趋势不明显;得出了年降水和季降水序列的周期变化规律.通过本文的分析,将会为宝鸡市降水的中长期预测及水资源的合理利用提供参考.
Mann-Kendall test and methods of spectrum analysis were adopted to analyze the data of precipitation from 1954 to 2004 in this paper. The result indicated that the annual precipitation was decreasing, while the tendency of seasonal precipitation series was different. Especially in winter and spring, the precipitation of spring reduced remarkably, while winter precipitation was on the rise. The law of annual and seasonal precipitation period was given. Advice was given for the medium and long term prediction and rational utilization of water resources.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
北大核心
2007年第1期47-50,共4页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
国家科技部"西部开发"重大项目(2004BA901A13)
