帕米尔东北部昆仑圆柏850 a树轮宽度年表的建立及其气候意义  

An 850-year Tree-Ring Width Chronology of Juniperus Jarkendensis for Northeastern Pamirs and Its Climatic Implications

作　　者：尚华明[1,2,3] 魏文寿[1,2,3] 袁玉江[1,2,3] 木太力普.托乎提 陆恒[5] 张同文[1,2,3] 范子昂[1,2,3] 陈峰[1,2,3] 秦莉[1,2,3] 

机构地区：[1]中国气象局乌鲁木齐沙漠气象研究所 [2]新疆树木年轮生态实验室 [3]中国气象局树轮年轮理化研究重点实验室,新疆乌鲁木齐830002 [4]新疆帕米尔高原湿地自然保护区管理站,新疆阿图什845350 [5]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011

出　　处：《沙漠与绿洲气象》2015年第1期6-11,共6页Desert and Oasis Meteorology

基　　金：气象行业专项(GYHY201206014);国家科技支撑计划课题(2012BAC23B01);国家自然科学基金(41205124);自治区重点实验室专项资金项目(2014KL017)共同资助

摘　　要：利用帕米尔高原东北缘的昆仑圆柏树轮资料建立了850 a的树轮宽度年表(1165—2014年),是目前新疆最长的树轮年表。树轮宽度指数与乌恰站的气象资料相关分析表明:树轮宽度主要受水分条件限制,与降水量、降水日数和水汽压呈一致的正相关,其中树轮宽度标准年表与乌恰上年10月—当年7月的降水量的相关系数达到0.671。宽度年表与最高气温和最低气温呈反相关:当年生长季及其前期的最高气温与轮宽指数负相关,而最低气温(当年5月以外)与树木的生长正相关,表明生长季的较高的最高气温和冬季的较低的最低气温不利于树木的生长。树轮宽度指数与CRU格点降水资料的空间相关分析表明其能较好地反映帕米尔高原东部的降水变化,其次与新疆天山山区中部和南疆平原区的降水也具有较好的相关性。An 850-year tree-ring width chronology of Juniperus jarkendensis for northeastern Pamir, the longest one in Xinjiang, was established here. The statistical parameters including mean sensitivity, percentage of missing ring, first order autocorrelation and expressed population signal etc. indicate the capacity for abundant climatic information. Correlation analysis between tree-ring width standard index and meteorological factors from Wuqia meteorological station including precipitation, numbers of precipitation days, vapor pressure and temperature shows that tree ring width is primarily limited by moisture status. The highest correlation coefficient of 0.671 is found between ring width index and precipitation from October of the previous year to July of the current year. The mean monthly maximum and minimum temperature showed distinct relationships with tree-ring width. The maximum temperature during growth and pre-growth season is negative related with ring width,however, monthly mean lowest temperature, except for May in current year is positive related with ring width. Spatial correlation analysis between tree-ring width index and CRU grid precipitation data showed its good representation on precipitation for eastern Pamir, and central Tianshan mountains in Xinjiang and plain area in south Xinjiang.

关 键 词：帕米尔 昆仑圆柏 树木年轮 气候意义 

分 类 号：P467[天文地球—大气科学及气象学]