摘要
Monthlymeansurfaceairtemperaturesandprecipitationat20meteorologicalstationsintheJinshaRiverValley(JRV)ofsouthwestChinawereanalyzedfortemporal-spatialvariationpatternsduringtheperiod1961-2010.ThemagnitudeofatrendwasestimatedusingSen’sNonparametricEstimatorofSlopeapproach.ThestatisticalsignificanceofatrendwasassessedbytheMKtest.Theresultsshowedthatmeanannualairtemperaturehasbeenincreasingby0.08℃/decadeduringthepast50yearsasawhole.Theclimatechangetrendinairtemperaturewasmoresignificantinthewinter(0.13℃/decade)thaninthesummer(0.03℃/decade).Annualprecipitationtendedtoincreaseslightlythereafterandtheincreasingwasmainlyduringthecrop-growingseason.Boththegreatestvariationoftheannualmeantemperatureandannualprecipitationwereobservedatthedry-hotvalleyareaofmiddlereaches.Significantwarmingrateswerefoundintheupperreacheswhereasthedry-hotbasinsofmiddlereachesexperiencedacoolingtrendduringthepastdecades.Despiteoftheoverallincreasinginprecipitation,moreobviousupward-trendswerefoundinthedry-hotbasinsofmiddlereacheswhereastheupperreacheshadadroughttrendduringthepastdecades.
出版日期
2016年02月12日（中国期刊网平台首次上网日期，不代表论文的发表时间）
