The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
Three Gorges Area The Trend Analysis of Annual Runoff Time Series in the Jialing River
Author(s): 
Pages: 33-36
Year: Issue:  5
Journal: Journal of Chongqing Normal University(Natural Sci

Keyword:  径流量 降水量 趋势性 嘉陵江;
Abstract: 以嘉陵江流域作为研究范围,以其控制性水文站北碚站实测数据为研究依据。采用肯德尔(Kendall)秩次相关法、累积距平法、Mann-Kendall统计检验方法及相关性分析法对径流量、降水量进行分析。分析得出嘉陵江流域Ken-dall标准化变量M=-2.52,径流量呈显著下降趋势,且在1992年发生突变。累积距平法分析表明:流域有二个显著的丰水段、一个平水段、二个显著的枯水段。降水量同径流量的变化存在明显的相关性,相关系数为0.75,呈显著相关关系。降水和人类活动是嘉陵江径流量发生变化最主要的原因。
Related Articles
No related articles found