Severe Drought Events as Revealed in the Climate Records of China and Their Temperature Situations over the Last 1000 Years

(整期优先)网络出版时间:2005-04-14
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Thetotal15severedroughtsarediscoveredwiththeaidofthe'RetrievalSystemofChineseHistoricalClimateRecords'forthelast1000years.Thedroughtsareextensivetoenvelopemorethan4provincesandpersistenttocover3yrormore,andtheirseverityisequivalenttoorinexcessofthatinthe1930sinChina.Accordingtothedocumentaryrecordsandrestorationsitcanbeinferredthatmostdroughtsaremoreseverethanthoseinthelast50years.The15droughtsmayeitheroccurwarmorinacoldclimatebackground,with11ofthe15casesinthecoldphase.ThisindicatesthedifferenceinclimatecorrespondencebetweenChinaandnorthernAmerica,showingtheseverityoftheeventsinChinatobeinacoldinsteadofawarmclimatesituation.ThatislikelytorelatetothemonsoonclimateineasternAsia.