巴丹吉林沙漠西南缘胡杨径向生长对气候的响应  

Radial Growth of Populus euphratica Response to Climate Change at Southwest Edge of Badain Jaran Desert

作　　者：秦莉[1] 尚华明[1] 苏佳佳[2] 袁玉江[1] 张同文[1] 喻树龙[1] 范子昂[1] 陈峰[1,2] 

机构地区：[1]中国气象局乌鲁木齐沙漠气象研究所,中国气象局树木年轮理化研究重点开放实验室,新疆树木年轮生态实验室,新疆乌鲁木齐830002 [2]兰州大学资源环境学院西部环境教育部重点实验室,甘肃兰州730000

出　　处：《沙漠与绿洲气象》2016年第2期77-81,共5页Desert and Oasis Meteorology

基　　金：科技部公益性行业(气象)科研专项(GYHY201206014);国家自然科学基金(41205070);中国沙漠气象科学研究基金(Sqj2015010,Sqj2014014)

摘　　要：利用2014年采自巴丹吉林沙漠西南缘的胡杨样本,建立了该地区胡杨树轮宽度年表,选用相关函数法结合高台气象站历年逐月降水和温度(月平均气温、月平均最高气温、月平均最低气温)等主要气候因子,分析巴丹吉林沙漠西南缘胡杨树轮对气候的响应;研究表明,黑泉乡胡杨树轮宽度标准化年表与生长季平均气温相关较好,具有明显的正相关关系。而生长季3—9月的平均气温与胡杨树轮宽度年表的相关高达0.629(P<0.0001),3—9月的平均气温可能是该地区胡杨树木径向生长的主要限制性因子且具有明确的树木生理学意义。In this study, we developed a tree-ring width chronology using tree-ring cores of the Populus euphratica which collected from the southwest edge of Badain Jaran Desert in 2014. Using monthly precipitation, average maximum temperature, mean minimum temperature and average temperature from Gaotai meteorological station, the climate response of tree-ring widths was analyzed. Climate response analysis showed that the temperature during the growing season is limiting factor for the radial growth, and highest correlation（r=0.512, p〈0.0001）between tree-ring width chronology and June temperature is found. The mean temperature （March-September）may be the main limiting factor of Populus euphratica radial growth at southwest edge of Badain Jaran Desert, and it has a clear physiological significance.

关 键 词：树木年轮 径向生长 巴丹吉林沙漠 气候变化 胡杨(Populus EUPHRATICA Oliv.) 

分 类 号：P532[天文地球—古生物学与地层学]