A distributed modeling approach to water balance implications from changing land cover dynamics in permafrost environments
作者机构：The National Key Laboratory of Water Disaster PreventionCollege of Hydrology and Water ResourcesHohai UniversityNanjing 210098China College of Hydrology and Water ResourcesHohai UniversityNanjing 210098China School of Energy and EnvironmentCity University of Hong KongKowloonHong Kong Special Administrative Regions of China Australian Rivers InstituteGriffith UniversityNathanQLD 4111Australia International Water Management Institute(IWMI)Lahore 54000Pakistan National Tibetan Plateau Data CenterState Key Laboratory of Tibetan Plateau Earth SystemEnvironment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China
出 版 物：《Geography and Sustainability》 (地理学与可持续性（英文）)
年 卷 期：2024年第5卷第4期
页 面：561-576页
核心收录：
学科分类：082802[工学-农业水土工程] 090707[农学-水土保持与荒漠化防治] 0907[农学-林学] 08[工学] 0828[工学-农业工程] 09[农学]
基 金：supported by the Key Program of the National Natural Science Foundation of China(Grant No.41830752) the General Program of the National Natural Science Foundation of China(Grants No.42101397,42071033,41961134003)
主 题：Cold region Land cover change Permafrost hydrology SWAT model Source region Yangtze river
摘 要：There is 78%permafrost and seasonal frozen soil in the Yangtze River’s Source Region(SRYR),which is situated in the middle of the Qinghai-Xizang *** distinct scenarios were developed in the Soil and Water Assessment Tool(SWAT)to model the effects of land cover change(LCC)on various water balance *** and percolation of groundwater have decreased by *** demonstrates the seasonal contributions of subsurface water,which diminish when soil *** winter,when surface water inputs are low,groundwater storage becomes even more critical to ensure water supply due to this periodic *** impermeable layer underneath the active layer thickness decreases GWQ and PERC in LCC+permafrost *** water transport and storage phase reached a critical point in August when precipitation,permafrost thawing,and snowmelt caused LATQ to *** prevent waterlogging and save water for dry periods,it is necessary to control this peak flow *** processes,permafrost dynamics,and land cover changes in the SRYR are difficult,according to the *** interactions enhance water circulation throughout the year,recharge of groundwater supplies,surface runoff,and lateral *** the region’s water resource management to be effective in sustaining ecohydrology,ensuring appropriate water storage,and alleviating freshwater scarcity,these dynamics must be considered.
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