树轮学的一些基本研究方法和存在的问题

被引:7
作者
方克艳
刘昶智
勾晓华
李颖俊
机构
[1] 兰州大学西部环境与气候变化研究院
关键词
树轮年代学; 差异性响应; RCS去趋势方法; 零信号去趋势方法;
D O I
10.13885/j.issn.0455-2059.2012.05.005
中图分类号
S718.4 [树木学];
学科分类号
071012 ; 0713 ;
摘要
树轮年代学近年来取得了长足的进展,国内不同地区开展了大量的树轮气候重建.树轮低频信号的提取一直是树轮气候学面临的重要问题,RCS去趋势方法由于不受样本长度的限制,被大量运用于树轮去趋势处理过程中以保存气候变化的低频趋势.然而近年的研究又发现该方法存在一些固有问题,在运用该方法时需要特别注意.零信号去趋势方法被证明能有效地缓解一些树轮去趋势方法存在的固有问题.
引用
收藏
页码:41 / 46
页数:6
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