水科学进展2025，Vol.36Issue(4)：596-609,14.DOI:10.14042/j.cnki.32.1309.2025.04.005
气候与植被协同变化下的径流响应研究
The response of runoff to coordinated changes in climate and vegetation:a case study at northern foothills of Qinling Mountains
摘要
Abstract
To enhance the understanding of runoff responses to climate and vegetation changes,co-variation diagnosis based on Copula functions,structural equation modeling,and elasticity coefficients were employed in the less human-impacted northern foothills of the Qinling Mountains,to analyze the runoff response patterns under the collaborative changes of climate and vegetation.The results showed:①From 1980 to 2022,the basin exhibited a trend of nonsignificant increase in precipitation,significant increase in leaf area index.②Improvement in vegetation conditions led to a decrease in the proportion of precipitation converted into runoff.③Temperatures is the primary climatic factor driving regional vegetation changes,which in turn affected runoff.④Vegetation changes adapting to climate change amplified the runoff response to temperature changes while reducing the runoff response to precipitation changes;a 1℃ increase in temperature directly caused a 2.7%reduction in regional runoff and indirectly led to a 3.8%reduction by driving vegetation changes;a 10%increase in precipitation directly increased regional runoff by 17.2%,but indirectly reduced runoff by 1.5%through driving vegetation changes.This study holds significant scientific importance for understanding the hydrological response patterns of watersheds under the co-variation of climate and vegetation.关键词
径流响应/气候变化/植被变化/秦岭Key words
runoff response/climate change/vegetation change/Qinling Mountains分类
天文与地球科学引用本文复制引用
张豪,鲍振鑫,王婕,孟宪红,余承霖,朱俊杰..气候与植被协同变化下的径流响应研究[J].水科学进展,2025,36(4):596-609,14.基金项目
国家重点研发计划项目(2022YFC3205200) （2022YFC3205200）
国家自然科学基金项目(52479020)The study is financially supported by the National Key R&D Program of China(No.2022YFC3205200)and the National Natural Science Foundation of China(No.52479020). （52479020）
