四川攀西地区云南松群落物种多样性和谱系多样性对紫茎泽兰入侵的影响

陈旭, 王国严, 彭培好, 李景吉, 石松林, 张廷斌

Effects of taxonomic and phylogenetic diversity of resident Pinus yunnanensis communities on Ageratina adenophora invasion in the Panxi region, Sichuan Province

Xu Chen, Guoyan Wang, Peihao Peng, Jingji Li, Songlin Shi, Tingbin Zhang

表2 攀西地区云南松林环境因子和生物因子对紫茎泽兰入侵强度的影响

Table 2 Effects of environmental and biological factors on the invasion of Ageratina adenophora in Pinus yunnanensis forests in Panxi region

因子 Factor 数值范围 Numerical ranges χ2 P 第一主成分 First principal component -3.35 to 3.16 0.23 0.63 第二主成分 Second principal component -3.02 to 3.43 0.72 0.39 灌木层Shannon-Wiener指数 Shannon-Wiener index of shrub layer 0.14-2.26 4.06 0.04* 灌木层净种间亲缘关系指数 Net relatedness index of shrub layer -1.27 to 3.11 0.46 0.49 灌木层目标物种净种间亲缘关系指数 Net relatedness index of shrub layer to the target species -1.29 to 2.39 0.05 0.81 草本层Shannon-Wiener指数 Shannon-Wiener index of herb layer 0.93-2.37 1.99 0.15 草本层群落净种间亲缘关系指数 Net relatedness index of herb layer -1.32 to 1.31 3.21 0.07 草本层目标物种净种间亲缘关系指数 Net relatedness index of herb layer to the target species -1.74 to 1.44 4.28 0.03*