海南岛热带山地雨林种类组成的局域分布与垂直分布

对海南岛四大山地雨林区常见植物种类的局域及垂直分布进行了研究，结果表明，海南岛热带山地雨林的种类组成，除了在各林区有一定数量相同的种外，各林区之间种类成分也存在着显著的差异，由于各林区生态因子的差异，使得生态幅度不同的物种在垂直方向上的分布也产生明显的差异，生态幅度较小的物种仅局限于某一地段，生态幅度较广，适应性较强的种类则有较广泛的分布。

Local and vertical distribution of floristic composition species in tropical montane rain forests, Hainan Island.

This paper deals with locals and vertical distribution of common plant species in four main tropical montane rain forestes in Hainan Island.The results showed that although each forest area contained certain same dominant or fundamental species on species composition in those forests distribution in the east,middle and west of Hainan,distinctive differences of species composition also existed in the every forest regions.The ecological factor differences in each forest area lead to distribution differences in vertical distribution of species with different ecological amplitude.Since temperature,humidity,wind,topography,and soil varied with the different altitude,the distribution of various ecological amplitude species diverged in the ecological factor effect.The species with narrower ecological amplitude distributed only in limited area.For example,the temperature sensitive species of tropical floristic composition located just in mountain valley because of the ecological influence.Some pure subtropical species only distributed in tropical hill or sub alpine area.However,the species with wider ecological amplitude or adaptation located from low to high altitude and from valley to mountain ridge.