overstory
英
美
n. 上层木,树冠层,主林层
COCA.40550
双语例句
- Reproduce naturally in the open rather than under an overstory.
宁在空旷地而不是树冠下自然繁殖。 - The permanent plot survey data were used to analyze the relationship among the average height, DBH and age of overstory trees of Pinus massoniana natural forest.
利用二类调查固定样地资料，分析了马尾松天然林上层木平均高、胸径与年龄三者之间的关系。 - The main factors affecting the habitat requirements of alpine blood pheasants in the initial mating period, according to the priority sequence, are slope position, distance to water resource, distance to highway, overstory cover, vegetation height, and slope orientation.
影响高山血雉生境需求的主要因子，按重要性大小排列依次为坡位、离水源距离、离公路距离、植被郁闭度、植被高度和坡向。