人民长江2013，Vol.44Issue(7)：6-10,5.
长江入海径流量突变性和趋势性分析
Mutability and variation trend of discharges into sea from Yangtze River
摘要
Abstract
To study the variation of runoff trend in Yangtze River Estuary under the influence of climate change and human fac-tors, based on the daily-averaged discharges of Datong Station on Yangtze River, Pettitt mutability point tests are employed to detect the mutability point of discharge series in a year, dry season, flood season, flood recession period and each month, respec-tively. The average discharge series are divided into several segments by mutability points. The tendency of discharges of each segment or as a whole is explored by Mann-Kendall method. The results show that the mutation point of annual discharge series into the sea appeared in middle 50s, late 70s and 80s of 20th Century, and early 21st Century; however, the mutation trend is not obvious.关键词
入海径流/突变性/趋势性/Pettitt检验/M-K趋势检验/长江/大通站Key words
discharge into the sea/mutability/trend/Pettitt mutation point test/Mann-Kendall trend test/Yangtze River/Datong Station分类
建筑与水利引用本文复制引用
刘嘉琦,龚政,张长宽..长江入海径流量突变性和趋势性分析[J].人民长江,2013,44(7):6-10,5.基金项目
国家重点基础研究发展计划“973”项目(2010CB429001) （2010CB429001）
国家科技支撑计划课题(2012BAB03B02) （2012BAB03B02）
新世纪优秀人才支持计划资助 （）
