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5 均匀度指数、树冠垂直分层、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 5 Direct, indirect, and total standardized effects of evenness index (EI), canopy vertical stratification (CVS), stand basal area (SBA) and environmental factor 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 | 0.177 (p > 0.05) | 总计 Summed | 0.064 (p > 0.05) | -0.146 (p > 0.05) | | 通过均匀度指数 Via EI | -0.080 (p > 0.05) | | 通过树冠垂直分层 Via CVS | 0.036 (p > 0.05) | | 通过林分胸高断面积 Via SBA | 0.137 (p= 0.021) | | 均匀度指数 EI | 0.244 (p= 0.007) | 总计 Summed | -0.067 (p > 0.05) | 0.263 (p= 0.006) | | 通过树冠垂直分层 Via CVS | 0.020 (p > 0.05) | | 通过林分胸高断面积 Via SBA | 0.086 (p > 0.05) | | 树冠垂直分层 CVS | 0.434 (p< 0.001) | 总计 Summed | 0.126 (p > 0.05) | 0.560 (p< 0.001) | | 通过林分胸高断面积 Via SBA | 0.126 (p > 0.05) | | 林分胸高断面积 SBA | 0.208 (p > 0.05) | | | 0.208 (p > 0.05) |
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