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树种组成
[林] species composition
- 本文还对其林分起源、树相、树种组成、径阶分布等进行详细的研究。
The studies of stands origin, forest form, species composition, diameter distribution, growth process of average tree were also conducted. - 采用样地调查法，对日本冲绳岛北部的亚热带常绿阔叶林的林分结构，树种组成以及土壤特性等进行了调查分析。
Structure, species composition, and soil properties of a subtropical evergreen broad-leaved forest in Okinawa, Japan, were examined by establishment of plots at thirty sites. - 分析了海南岛霸王岭自然保护区热带山地雨林林隙内树种的种类组成、数量动态以及林隙年龄和林隙面积对树种组成及数量的影响。
Species composition, quantitative dynamics and effects of gap age and gap size on species compositions were studied in the tropical montane rain forest of Bawangling Natural Reserve, Hainan Island.
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