岩溶地区马尾松群落成因研究

对广西岩溶山区生态重建示范点都安县三只羊乡岜马屯和全州县白宝乡行水田村的两个马尾松(Pinus massoniana)群落的外貌及结构特征、种类组成、土壤状况等进行了调查分析和相似性对比研究,并与砂、页岩地区的马尾松群落进行比较.得出:在特殊的情况下岩溶地区的碳酸盐岩地层的土壤形成酸性,是岩溶山区能形成马尾松群落的主要原因.

Study on the Origin of Pinus massoniana Community of Karst Areas

The physiognomy,community structure,plant species composition and soil property of two communities of Pinus massoniana,which distribute respectively in Sanzhiyang town of Duan county and Baibao town of Quanzhuo county,where are the demonstration sites of the project "The ecological rehabilitation in the karst mountain area of Guangxi",were investigated and analyzed,and the similarities between two communities were studied as well.Further more,they were also contrasted with the Pinus massoniana communities distributing in sandstone and shale acidic soil areas.It is concluded that under some special natural conditions,the changing into acidic soil of the karstal soil is the key cause inducing the establishment of Pinus massoniana community in carbonate rock area.