Study on species diversity of natural community of Monimopetalum chinense
A total of 9 natural community survey sites with Monimopetalum chinense were set up in Jiulingshan National Nature Reserve of Jiangxi Province,and the species diversity of the natural community was investigated and analyzed.The species composition at each level of the community was statistically analyzed,and its important value and species diversity index were calculated,and the relationship between species diversity and altitude was coupled.The results showed that:(1)There were 60 species of vascular plants in 39 families,51 genera,and Cunninghamia lanceolata was the dominant species in the community,followed by M.chinense.(2)The species diversity indexes of tree layer,shrub layer,herb layer and woody climber layer in the community were different,but not significant.In the vertical structure of community,the diversity index was shrub>tree>woody climber>woody climber.(3)The importance value of M.chinense in the woody climber layer was 62.78%,ranking the first place and occupying an absolute dominant position;(4)Species richness,Pielou evenness index,Simpson index and Shannon-Wiener index was no significant correlation with altitude.There was a high ecological niche in the community,and the competition between species was not significant.
species diversityMonimopetalum chinensenatural communityJiulingshan
NETL
NSTL
万方数据
