摘要
为研究西江流域中游的径流变化对气候变化的季节性响应,探寻径流变化的季节性特征,为西江流域中游的防汛减灾工作提供决策参考及建议。通过距平法、斯皮尔曼秩次相关检验法、R/S分析法,分析梧州站的径流变化及气候变化特征,得出西江流域中游梧州站冬、春、夏气温均有上升趋势,冬季的增幅高于春季和夏季,平均气温增幅达到了0.31℃/10a;西江流域中游冬季和夏季的平均日最低气温增加幅度较大,且增加趋势均为极显著,但四季的降水量变化并不平稳。其中,四季年降水量除冬季外都有减少的趋势,趋势大多不显著。同时,西江流域梧州站冬、春、夏径流总量都有增加趋势,秋季径流总量则呈现下降趋势。气温与径流量呈负相关,降水与径流量呈显著性正相关。
For the middle reaches of Xijiang River Basin,in order to study the seasonal response of its runoff change to climate change,find out the seasonal characteristics of its runoff change,and provide reference and suggestions for its flood control and disaster mitigation,this paper analyzes the characteristics of runoff and climate changes by the anomaly method,spearman rank correlation test and R/S method.The results show that the temperature in winter,spring and summer is rising,with higher growth rate in winter than spring and summer,and the average growth rate of temperature reaches 0.31℃/10a.Moreover,the average daily minimum temperature increases significantly in winter and summer.The change of precipitation in four seasons is not stable.Among them,the precipitation decreases in all seasons except winter,but not significant.Furthermore,the total runoff of Wuzhou station increases in winter,spring and summer,and decreases in autumn.In conclusion,there is a negative correlation between temperature and runoff,and a significant positive correlation between precipitation and runoff.
作者
孙雯
王月
杨聪剑
梁彬兰
SUN Wen;WANG Yue;YANG Congjian;LIANG Binlan(College of Environment and Resources,Guangxi Normal University,Guilin 541004,China;Key Laboratory of Karst Ecology and Environment Change Research of Guangxi Department of Education,Guilin 541004,China;Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection,Ministry of Education,Guilin 541004,China)
出处
《人民珠江》
2019年第12期1-5,12,共6页
Pearl River
基金
广西大学生创新创业计划项目(201810602281)
广西自然科学基金项目(2017GXNSFBA198129)
国家自然科学基金项目(41701038)
广西高校中青年教师基础能力提升项目“广西极端气候事件时空特征及植被响应研究”(KY2016YB061)
广西师范大学重点项目(2016ZD006)
关键词
气温
降水
季节性
径流
梧州站
temperature
precipitation
seasonal
runoff
Wuzhou station
