摘要
Regionaldroughtanalysisprovidesusefulinformationforsustainablewaterresourcesmanagement.Inthispaper,astandardizedprecipitationindex(SPI)atmultipletimescaleswasusedtoinvestigatethespatialpatternsandtrendsofdroughtintheHanRiverBasin,oneofthelargesttributariesofYangtzeRiver,China.Itwasfoundthat,intermsofdroughtseverity,theupperbasinoftheHanRiveristheleast,whilethegrowingtrendisthemostconspicuous;alessconspicuousgrowingtrendcanbeobservedinthemiddlebasin;andthereisaninsignificantdecreasingtrendinthelowerbasin.Meanwhile,theimpactofdroughtontheMiddleRouteoftheSouth-to-NorthWaterTransferProjectwasinvestigated,anditissuggestedthatwaterintakemustbereducedintimesofdrought,particularlywhensuccessiveorsimultaneousdroughtsintheupperandmiddlebasinsoftheHanRiverBasinoccur.TheresultscanprovidesubstantialinformationforfuturewaterallocationschemesoftheSouth-to-NorthWaterTransferProject.
出版日期
2011年06月16日（中国期刊网平台首次上网日期，不代表论文的发表时间）
