树种组成 meaning in English
composition
Examples
- Whereas , for the natural forest consisted of native species , the niche overlap was low and the interspecies relationship was harmonious . the composition structure of community thereby was more stable
而由本地树种组成的天然林，生态位重叠小，种间关系协调，群落组成结构的稳定性更高。 - Thinning stands with the thinning intensity of about 20 % and 30 % had no significant effects on species diversity , biomass of shrub and herb , and physical properties of soil
各林分的树种组成在12年间基本没有发生变化，即间伐没有显著地改变林分的树种组成，目前的树种组成即落叶松、其他针叶树（云杉、冷杉和红松）和阔叶树组成比约为6 : 3 : 1可能是相对稳定的群落。 - Based on investigation of natural forest vegetation in chaoguanxigou watershed of rocky mountain area of north of china , the composition of species , structure of dbh of trees and species diversity of trees and shrubs in the course of forest succession are researched
摘要基于华北土石山区潮关西沟流域天然森林植被调查的基础上，对森林植被群落演替中群落树种组成、胸径结构和生物多样性变化进行了研究。 - Experimental plots were established for thinning effects on stand and tree growth , tree species composition , species diversity and soil factors etc . in the mixed larch - spruce - fir stands which originated from planted larch pure forest by observations for 12 years after thinning
摘要以15块人工落叶松纯林演化后形成的落叶松云冷杉混交林为对象，间伐后12年观测结果，研究间伐对林分和树木生长、树种组成、物种多样性及土壤等因子的影响。