水资源与水工程学报2016，Vol.27Issue(6)：13-19,7.DOI:10.11705/j.issn.1672-643X.2016.06.03
汉江上游径流变化趋势及特征分析
Trends and characteristics of runoff for upper Hanjiang River
摘要
Abstract
The middle route of the South to North Water Transfer Project is originated from Danjiangkou reservoir in the middle and upper reaches of the Hanjiang River. As the water source area of water diver-sion project, it is of great significance to study the trends and characteristics of runoff in the upper rea-ches of the Hanjiang River. The trends and variations of annual runoff for typical stations were analyzed using the cumulative anomaly and Mann Kendall methods, and Sliding t test and sequential clustering were used to analyze the change of annual runoff. Taking four hydrological stations including Wuhou, Yangxian, Shiquan, Hanzhong in the upper reaches of Hanjiang River as examples, the results showed that the runoff amount in the upper reaches of Hanjiang River showed a trend of decreasing since 1950s, the decreasing trend was significant especially after 1990s. The changing trend of annual runoff in each station was similar, and the average runoff has the phenomenon of alternating high or low. The abrupt a-nalysis showed that the abrupt points of the runoff for the four stations are all in 1990 . The decrease of runoff in the upper reaches of the Hanjiang River was mainly affected by the decrease of precipitation and the increase of water using in social economy.关键词
径流/变化特征/突变检验/汉江上游/南水北调Key words
runoff/variation characteristics/abrupt tests/upper reaches of Hanjiang River/South to North Water Transfer Project分类
建筑与水利引用本文复制引用
严栋飞,解建仓,姜仁贵,吴昊,李杨..汉江上游径流变化趋势及特征分析[J].水资源与水工程学报,2016,27(6):13-19,7.基金项目
国家自然科学基金项目(51509201、51679188) （51509201、51679188）
国家重点研发计划项目(2016YFC0401409) （2016YFC0401409）
中国博士后科学基金资助项目(2016M590964) （2016M590964）
陕西省高校科协青年人才托举计划项目(20160217) （20160217）
