沙漠与绿洲气象Issue(1)：54-58,5.DOI:10.3969/j.issn.1002-0799.2016.01.008
不同去趋势方法对格尔木地区胡杨宽度年表的气候意义影响分析
Different Detrending Method Impact on Climate Information of Pop ulus Eup hratic a Tree-Ring Chronology from Golmud
摘要
Abstract
In this paper, tree-ring samples of Populus euphratica on southern margin of Qaidam Basin, Qinghai Province were collected in 2014, and the tree-ring chronology were developed using three different detrending methods, including spline function detrending method (SPL),negative exponential fitting detrending method (NEP) and regional curve detrending method (RCS). Combined temperature and precipitation data from Golmud meteorological station, to analyzed Populus euphratica radial growth response to climate in the different detrending methods used correlation and response function method. Studies have shown that the RCS standardized chronology contain more climate information. And the tree-ring chronologies have a good response to mean temperature and mean maximum temperature in growing season, the highest correlation coefficient could reach to 0.411 (p <0.01),there have a best relationship between RCS standardization chronology and mean maximum temperature from June to October. The mean maximum temperature in growing season may be a limiting factor of Populus euphratica radial growth on southern margin of Qaidam Basin, Qinghai Province, and it has physiological significance. The RCS chronology has a best response to climate in three different detrending methods.关键词
树木年轮/胡杨(Populus euphratica oliv.)/去趋势方法/气候响应Key words
Tree-ring/Populus euphratica oliv./detrending method/climate response分类
天文与地球科学引用本文复制引用
秦莉,尚华明,苏佳佳,袁玉江,喻树龙,张同文,陈峰,范子昂..不同去趋势方法对格尔木地区胡杨宽度年表的气候意义影响分析[J].沙漠与绿洲气象,2016,(1):54-58,5.基金项目
科技部公益性行业（气象）科研专项（GYHY201206014），国家自然科学基金（41405139），国家自然科学基金（41205070）和中国沙漠气象科学研究基金（Sqj201404）共同资助。 （）
