tree species composition

基本解釋

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(biāo)主要包括：林木高度、灌木高度、灌木株數(shù)、林木株數(shù)、灌木種類、雲(yún)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(duì)直逕生長轉(zhuǎn)移概率矩陣模型進(jìn)行了線性擴(kuò)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(yè)對(duì)天然針濶混交林喬木層樹種組成及物種多樣性的動(dòng)態(tài)影響。