不同林龄、树种落叶松人工林径向生长与气候变化的关系

温晓示,陈彬杭,张树斌,徐凯,叶新宇,倪伟杰,王襄平

Relationships of radial growth with climate change in larch plantations of different stand ages and species

Xiao-Shi WEN,Bin-Hang CHEN,Shu-Bin ZHANG,Kai XU,Xin-Yu YE,Wei-Jie NI,Xiang-Ping WANG

附录I 年轮宽度指数与气温、帕尔默干旱指数的PCA1、2轴得分与环境因子、林分结构特征多元回归分析

Supplement I Multiple regression analysis of the scores for PCA axes 1 and 2 of ring width index and air temperature, palmer drought severity index with environmental factors and stand structural characteristics

PCA1 PCA2 df % SS p df % SS p 树种 Tree species 1 0.729 0.535 1 5.567 0.167 林分密度 Stem density 1 28.043 0.004** 1 0.625 0.625 林龄 Stand age 1 8.225 0.061 1 64.605 0.000*** 蓄积量 Wood volume 1 34.052 0.002** 1 4.956 0.190 潜在蒸发量Potential evapotranspiration 1 11.502 0.032* 1 1.905 0.400 年降水量 Annual precipitation 1 2.555 0.260 1 0.662 0.615 立地条件 Site quality 2 1.012 0.755 2 2.356 0.631 残差 Residuals 8 13.882 8 19.323