tree species composition

常见例句

Height of trees and shrubs, density of trees and shrubs, shrub species, shrub coverage, tree composition and canopy are employed to evaluate the forest community.
森林群落指標主要包括：林木高度、灌木高度、灌木株數、林木株數、灌木種類、雲冷杉林木組成比例、灌木蓋度和森林鬱閉度。
A transfering probability matrix model of linearly generalized diameter growth was used to deal with the tree species composition problem of mixed unevenly aged forest.
對直逕生長轉移概率矩陣模型進行了線性擴展，用以研究混交異齡林的樹種組成問題。
The dynamics effects of cutting intensity on the tree layer species composition and diversity of natural mixed stand of conifer and broad-leaved trees (low intensity, 13.
和皆伐）作業對天然針濶混交林喬木層樹種組成及物種多樣性的動態影響。