tree layer中文什么意思

例句与用法

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1. There was no significant difference of diversity index between the tree layer and the shrub layer
   乔木层与灌木层之间多样性各项指标总体无显著差别。
2. Effects of selective cutting of different intensities on the tree layer structure and species diversity of evergreen broadleaved forest
   择伐作业对常绿阔叶林乔木层树种结构及物种多样性的影响
3. Effects of different intensities of artificial disturbance on tree layer of castanopsis carlesis forest using method of diversity measure
   多样性的测度方法探讨不同人为干扰强度对米槠林乔木层的影响
4. The vertical structure of each forest community were obvious and could be divided into tree layer , shrub layer , herbage layer and lianas
   各群落垂直结构十分明显，可分为乔木层、灌木层、草本层和层间植物。
5. The species diversity index of the tree layer was a bit low , and the general trend was shrub layer > treelayer > herb layer
   乔木层物种多样性指数偏低,垂直结构各层次间物种多样性大小依次为灌木层>乔木层>草本层。