水土保持研究2025，Vol.32Issue(6)：105-112,8.DOI:10.13869/j.cnki.rswc.2025.06.018
嵌套流域径流演变特征及驱动因素分析
Analysis of runoff evolution characteristics and driving factors in nested watersheds
摘要
Abstract
[Objective]To investigate the evolution patterns of precipitation and runoff in nested watersheds,thereby providing theoretical references for the optimal allocation of water resources in watersheds.[Methods]Using the observed precipitation and runoff data from 1961 to 2017 in the Xiangjiang River watershed and its sub-watershed,the Zhengshui watershed,this study applied the Mann-Kendall test,Pettitt test,wavelet analysis,and double mass curve method to compare the variation trends,abrupt change characteristics,and periodic characteristics of precipitation and runoff in the nested watershed,and to quantify the effects of precipitation and human activities on runoff changes.[Results]From 1961 to 2017,precipitation in both the Xiangjiang River and Zhengshui watersheds showed similar evolution patterns,with no significant variation trend or abrupt change.Both watersheds showed periodic variations in precipitation with cycles of 34 and 55 years.Runoff changes differed between the two watersheds.Runoff in the Xiangjiang River watershed showed no abrupt change,whereas annual runoff in the Zhengshui watershed exhibited an abrupt change in 1989.In the Xiangjiang River watershed,runoff variation was highly positively correlated with precipitation,while in the Zhengshui watershed,runoff trends diverged from those of precipitation.Annual runoff significantly increased after the year of abrupt change,with preci-pitation contributing 12.76％and human activities contributing 87.24％to the runoff increase.[Conclusions]Runoff evolution in the Xiangjiang River watershed is primarily controlled by precipitation,while human activities are the dominant factor influencing runoff changes in the Zhengshui watershed.关键词
水文学/归因分析/双累积曲线/嵌套流域/突变分析Key words
hydrology/attribution analysis/double mass curve/nested watershed/abrupt change analysis分类
天文与地球科学引用本文复制引用
欧阳海文,段良霞,袁红,周清,谢红霞..嵌套流域径流演变特征及驱动因素分析[J].水土保持研究,2025,32(6):105-112,8.基金项目
国家自然科学基金项目"红壤坡面植被覆盖结构对泥沙输移过程的影响机制"(42177322) （42177322）
