基于深圳围岭公园现有人工次生林植物群落的特点及其自然条件，合理的进行林分改造设计。
Based on the man-made with the secondary community characteristics and the natural conditions in Weiling Park of Shenzhen city, authors make a design for the stand rebuilding reasonably.
对在无自然稀疏和有自然稀疏状况下有关植物群落的竞争密度效应的两个倒数方程的差异进行了理论分析。
The differences between the two reciprocal equations of the competition-density effect in nonself-thinning populations and self-thinning populations were analyzed theoretically.
通过沿海拔梯度的系统调查，对小寨子沟自然保护区大熊猫生境的植物群落种类组成和结构进行了初步研究。
Community composition and structure of giant panda habitat were studied by systematic survey along altitudinal gradients in Xizozhaizigou Nature Reserve.
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