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1、巴丹吉林沙漠西南緣胡楊(Populuseuphratica)徑向生長對(duì)氣候的響應(yīng)秦莉1,尚華明1,蘇佳佳2,袁玉江1*,張同文1收稿日期:2015-;修訂日期:2015-基金項(xiàng)目:科技部公益性行業(yè)(氣象)科研專項(xiàng)(GYHY201206014)、國家自然科學(xué)基金(41405139)和中國沙漠氣象科學(xué)研究基金(Sqj2014014)共同資助作者簡介:秦莉(1985.11-),女,蒙古族,新疆烏魯木齊人,助理研究員,主要從事樹木年輪氣候?qū)W研究E-mail:Qinhappy@sina.com*通訊作者:袁玉江(1955.2-),研究員E-mail:yuan
2、yuj5502@sina.com,喻樹龍1,范子昂1,陳峰1,2(1.中國氣象局烏魯木齊沙漠氣象研究所,中國氣象局樹木年輪理化研究重點(diǎn)開放實(shí)驗(yàn)室,新疆樹木年輪生態(tài)實(shí)驗(yàn)室,新疆烏魯木齊830002;2.蘭州大學(xué)資源環(huán)境學(xué)院西部環(huán)境教育部重點(diǎn)實(shí)驗(yàn)室,甘肅蘭州730000)摘要:利用2014年采自巴丹吉林沙漠西南緣的胡楊樣本,建立了該地區(qū)胡楊樹輪寬度年表,選用相關(guān)函數(shù)法結(jié)合高臺(tái)氣象站歷年逐月降水和溫度(月平均氣溫、月平均最高氣溫、月平均最低氣溫)等主要?dú)夂蛞蜃?,分析巴丹吉林沙漠西南緣胡楊樹輪?duì)氣候的響應(yīng);研究表明,黑泉鄉(xiāng)胡楊樹輪寬度標(biāo)準(zhǔn)化年表與生長季平均
3、氣溫相關(guān)較好,具有明顯的正相關(guān)關(guān)系。而生長季3-9月的平均氣溫與胡楊樹輪寬度年表的相關(guān)高達(dá)0.629(P<0.0001),3-9月的平均氣溫可能是該地區(qū)胡楊樹木徑向生長的主要限制性因子且具有明確的樹木生理學(xué)意義。關(guān)鍵詞:樹木年輪;徑向生長;巴丹吉林沙漠;氣候變化;胡楊(Populuseuphratica)RadialGrowthofPopuluseuphraticaResponsetoClimateChangeatSouthwestEdgeofBadainJaranDesertQINLi1,SHANGHua-ming1,SUJia-jia2,YUA
4、NYu-jiang1,ZHANGTong-wen1,YUShu-long1,FANZi-ang1,CHENFeng1,2(1.InstituteofDesertMeteorology,ChinaMeteorologicalAdministration;KeyLaboratoryofTree-ringPhysicalandChemicalResearchofChinaMeteorologicalAdministration;KeyLaboratoryofTree-ringEcologyofXinjiangUigurAutonomousRegion,U
5、rumqi830002,China;2.KeyLaboratoryofWesternChina'sEnvironmentalSystems(MinistryofEducation),CollegeofEarthandEnvironmentalSciences,LanzhouUniversity,Lanzhou,730000,China)Abstract:Inthisstudy,wedevelopedatree-ringwidthchronologyusingthePopuluseuphraticatree-ringsamples.Thesample
6、swerecollectedfromthesouthwestedgeofBadainJaranDesertin2014.Thetree-ringwidthchronologyresponsetoclimatewasanalyzedusingmonthlyprecipitation,averagemaximumtemperature,meanminimumtemperatureandaveragetemperaturefromGaotaimeteorologicalstation.Responsefunctionanalysishaveshownth
7、atthetemperatureofgrowingseasonislimitingfactorfortreeradialgrowth,therehaveabestcorrelationbetweentree-ringwidthchronologyandtemperatureinJune(r=0.512,p<0.0001).Themeantemperature(March–September)maybethemainlimitingfactorofPopuluseuphraticaradialgrowthatsouthwestedgeofBadain
8、JaranDesert,andithasaclearphysiologicalsignificance.KeyWords: