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

表3 季节气候因子在年轮宽度指数与气温、帕尔默干旱指数主成分分析各轴的载荷值

Table 3 Loading of seasonal climatic factors in each axis of the principal components of ring width index and air temperature, palmer drought severity index

变量 Variable Comp. 1 Comp. 2 Comp. 3 Comp. 4 P_Sum_T -0.253 0.361 -0.318 0.233 P_Aut_T -0.115 0.507 -0.048 0.084 P_Win_T -0.330 -0.035 0.426 0.005 C_Spr_T -0.310 0.134 -0.427 0.167 C_Sum_T -0.171 0.381 0.440 -0.555 C_Aut _T 0.146 0.427 -0.353 -0.445 P_Sum_PDSI 0.219 0.405 0.212 0.475 P_Aut_PDSI 0.291 0.261 0.363 0.356 P_Win_PDSI 0.365 0.105 -0.053 -0.133 C_Spr_PDSI 0.359 0.102 0.002 -0.183 C_Sum_PDSI 0.374 -0.066 -0.052 -0.022 C_Aut_PDSI 0.364 -0.092 -0.178 0.019