Community Structure and Diversity of Quercus acutissima Forest in Laojun Mountain,Luanchuan,Henan Province
To study the dynamics of community structure and its species diversity,a sample plot of Quercus acutissima forest was set up in Laojunshan National Nature Reserve in Luoyang City,Henan Province.Community structure characteristics and diversity were investigated in the year of 2018 and 2023,respectively.The results showed that in the 5-year interval,the tree density of the Q.acutissima forest decreased.The species composition decreased from 52 families,86 genera,110 species to 41 families,72 genera,102 species.The common species increased from 70 to 79.The species richness index increased.Meanwhile,the dominant species at each layer and the constructive species were relatively stable.The communities between the year of 2018 and 2023 had some similarities.The individuals distributions along the scale of DBH(diameter at breast height)and tree height showed an inverted"J"shape.The species diversity index of the shrub layer wss the largest and increased at 2023,and that of the herb layer increased as well,while that of the tree layer decreased.There were some changes of community structure characteristics and species diversity in 5-year,but it still showed good stability on the whole.
forest communitycommunity structurespecies diversityscale of diameter at breast heightscale of heightQuercus acutissima forestLaojunshan mountain
NETL
NSTL
万方数据
维普
