Phylogenetic Structure of Rare Plant Communities in Shanxi Mang River
[Objective]The aim was to explore the endangered mechanism of rare plant communities in Shanxi Mang River.[Method]As the research object of rare plant community for the national natural protection area of Mang River,Shanxi,it was analyzed the change rules of five space sizes(100,400,900,1 600 and 2 500 m2)and six diameter classes(DBH<5 cm,5 cm≤DBH<10 cm,10 cm≤DBH<15 cm, 15 cm≤DBH<20 cm,20 cm≤DBH<25 cm, DBH≥25 cm)for the phylogenetic structure of plant communities and different researching directions to research the cause of the construction of communities.[Result]The degree of phylogenetic aggregation for the rare plant commu-nities was bigger and bigger with the improvement of diameter class.The community revealed the phylogenetic aggregation,and the aggregation degree of phylogenetic structure was relatively steady.[Conclusion]In the research,it is the phylogenetic structure at different space sizes and diameter classes for the rare plant communities of Mang River, Shanxi,all of these reveal that the roles of niche theory is more important and the communities of neural theory is inconsistent at random.
Community constructionPedigree structureSpace scaleDiameter levelMang River National Nature Reserve
国家科技期刊平台
NSTL
万方数据
维普
