沙漠与绿洲气象Issue(1)：39-46,8.
博州中东部树轮宽度年表特征及其气候响应
Tree-ring Width Chronologies Characteristics in the Middle and East of Boertala Mongolia Autonomous Prefecture and Their Response to Climate Change
摘要
Abstract
This paper analyzed characteristics of the tree-ring standardized chronologies from the nine sampling points in the middle and east of Boertala Mongolia Autonomous Prefecture and their response to climate change. The results indicated that:(1)JPB,BEK,XHZ,HSM chronologies which located near the lower limit of the forest and JPK chronology which located near the upper limit of the forest contained more climatic information.(2)The climate in the middle and east of Boertala Mongolia Autonomous Prefecture appeared obviously consistent influence to the radial growth of tree rings,most lasting in the current year or the next 3 years.(3)The correlation coefficients which located to lower treeline of forest were superior to upper treeline.(4)There was positive correlation between the tree-ring standardized chronologies and the mean lowest temperature from December last year to current September(the highest coefficient 0.583,the significance level 0.0001)in upper treeline region, while there is positive correlation between the tree-ring width and the precipitation from June last year to current May(expecially in June, the highest coefficient 0.644,the significance level 0.0001)lower treeline of forest region.The results suggest that the major climate factor is tempreture in upper treeline region but it is precipitation in lower treeline of forest region.关键词
树轮宽度年表/气候响应/博尔塔拉蒙古自治州/中东部地区Key words
tree-ring chronologies/reponse to climate change/middle and east/Boertala Mongolia Autonomous Prefecture分类
天文与地球科学引用本文复制引用
蔺甲,袁玉江,魏文寿,李漠岩,喻树龙..博州中东部树轮宽度年表特征及其气候响应[J].沙漠与绿洲气象,2013,(1):39-46,8.基金项目
国家自然科学基金(41071072,40975056)、科技部公益性行业(气象)科研专项(GYHY201106013,GYHY200806011, GYHY2012060014)、国家重点基础研究发展计划项目(2010CB951001)共同资助 （41071072,40975056）
