水资源与水工程学报2025，Vol.36Issue(2)：40-48,9.DOI:10.11705/j.issn.1672-643X.2025.02.05
长江源区蓝绿水对气候暖湿化和植被绿化的响应
Responses of blue and green water to climate warming-wetting and vegetation greening in the Yangtze River Source Region
摘要
Abstract
The Yangtze River Source Region(YRSR)is situated in a climate-sensitive zone,which is vulnerable to global climate change and human activities.The critical variations in its blue and green wa-ter resources have a profound impact on the management and sustainable development of water resources across the entire Yangtze River Basin.We investigated the spatiotemporal responses of blue and green water to climate warming-wetting trends and vegetation greening under land use changes,using the soil and water assessment tool(SWAT)model.Four combination scenarios considering climate warming-wetting and vegetation greening were established for quantitative analysis.The results indicate that pre-cipitation and mean temperature in the YRSR exhibited significant upward trends from 1981 to 2020.During 1990-2020,7,842.7 km2 of unused land was converted to grassland,while the leaf area index(LAI)showed a non-significant increasing trend.Under the combined effects of climate warming-wet-ting and vegetation greening,both blue and green water in the basin increased,with climate warming-wetting dominating the hydrological changes,contributing 70.24%and 96.28%to blue and green water variations,respectively.The warmer and wetter climate not only promoted vegetation greening but also in-directly enhanced water resources availability.Meanwhile,vegetation greening accelerated the conversion of blue water to green water,indicating that increased vegetation coverage optimized water resources dis-tribution within the basin.关键词
蓝、绿水/气候暖湿化/植被绿化/土地利用变化/SWAT模型/长江源区Key words
blue and green water/climate warming and wetting/vegetation greening/land use change/soil and water assessment tool(SWAT)model/the Yangtze River Source Region分类
水利科学引用本文复制引用
朱萌宇,倪福全,邓玉,任化准,王宇轩,吴明炎,岳紫莹,江楠,文玮..长江源区蓝绿水对气候暖湿化和植被绿化的响应[J].水资源与水工程学报,2025,36(2):40-48,9.基金项目
四川省教育厅农村水安全工程研究中心项目(035Z2289) （035Z2289）
