树冠结构对典型阔叶红松林生产力的影响
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哈努拉•塔斯肯, 蔡慧颖, 金光泽
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Effects of canopy structure on productivity in a typical mixed broadleaved-Korean pine forest
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Hanula TASIKEN, CAI Hui-Ying, JIN Guang-Ze
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表6 均匀度指数、树冠可塑性、林分胸高断面积和环境因素对典型阔叶红松林生产力的直接、间接和总效应
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Table 6 Direct, indirect, and total standardized effects of evenness index (EI), canopy plasticity (CP), stand basal area (SBA) and environmental factors on productivity in a typical mixed broadleaved-Korean pine forest
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预测因子
Predictor | 直接效应
Direct effect | 间接效应途径
Pathways of indirect effect | 间接效应
Indirect effect | 总效应
Total effect | | 环境因子 Environmental factor | -0.264 (p= 0.024) | 总计 Summed | 0.073 (p > 0.05) | -0.191 (p > 0.05) | | 通过均匀度指数 Via EI | -0.136 (p= 0.011) | | 通过树冠可塑性 Via CP | 0.004 (p > 0.05) | | 通过林分胸高断面积 Via SBA | 0.205 (p= 0.006) | | 均匀度指数 EI | 0.417 (p< 0.001) | 总计 Summed | -0.195 (p= 0.014) | 0.222 (p= 0.030) | | 通过树冠可塑性 Via CP | -0.017 (p > 0.05) | | 通过林分胸高断面积 Via SBA | -0.178 (p= 0.005) | | 树冠可塑性CP | -0.045 (p > 0.05) | 总计 Summed | 0.171 (p= 0.005) | 0.126 (p > 0.05) | | 通过林分胸高断面积 Via SBA | 0.171 (p= 0.005) | | 林分胸高断面积 SBA | 0.544 (p < 0.001) | | | 0.544 (p < 0.001) |
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