%0 Journal Article
%T HydrologicModelingoftheHeiheWatershedbyDLBRMinNorthwestChina
%J 冰川冻土
%P 410-421
%D 2009
%I 科学出版社
%X ABSTRACTWatershortageisachronicprobleminaridNorthwestChina.Theincreasingpopulationgrowthandexpandingurbanizationaswellaspotentialclimatechangeimpactsarelikelytoworsenthesituation,threateningdomestic,irrigation,andindustrialsuppliesandeventhesurvivaloftheecosystemsinNorthwestChina.ThispaperdescribesthepreliminaryworkofadaptingtheDistributedLargeBasinRunoffModeltotheHeiheWatershed(thesecondlargestinlandriverinaridNorthwesternChina,withadrainageareaof128,000km2)forunderstandingdistributionofglacial/snowmelt,groundwater,surfacerunoff,andevapotranspiration,andforassessinghydrologicalimpactsofclimatechangeandglacialrecessiononwatersupplyinthemiddleandlowerreachesofthewatershed.PreliminarysimulationresultsshowthatQilianMountainintheupperreachareaproducesmostrunoffintheHeihewatershed.Thesimulateddailyriverflowsofthe1990-2000indicatethattheHeiheRiverdischargesabout1billionm3ofwaterfromthemiddlereach(atZhengyixiastation)tolowerreach,withsurfacerunoffandinterflowcontributing51and49percentrespectively.Thesandylowersoilzoneinthemiddlereachhasthehighestevapotranspirationrateandalsocontributesnearlyhalfoftheriverflow.WorkunderwayfocusesontheDLBRMmodelimprovementandincorporationoftheclimatechangeandmanagementscenariostothehydrologicalsimulationsinthewatershed.
%K Distributed
%K Large
%K Basin
%K Runoff
%K Model
%K (DLBRM)
%K Heihe
%K Watershed
%K in
%K Northwestern
%K China
%K Water
%K Shortage
%K Climate
%U http://bcdt.westgis.ac.cn/CN/abstract/abstract172.shtml