森林与环境学报2026，Vol.46Issue(1)：82-90,9.DOI:10.13324/j.cnki.jfcf.202507005
濒危植物夏蜡梅3种林型的群落特征比较
Comparison of community characteristics of three stand types of the endangered plant Calycanthus chinensis
摘要
Abstract
To reveal the habitat adaptation mechanisms of Calycanthus chinensis in different vegetation types,this study selected three typical forest types—deciduous evergreen broadleaf mixed forest(abbreviated as mixed forest),Chinese fir(Cunninghamia lanceolata)forest,and Moso bamboo(Phyllostachys edulis)forest—in Tiantai County,Zhejiang Province for community investigation.The quadrat sampling method was employed to survey the tree,shrub,and herb layers,and the community composition,species diversity,and stand structure were characterized.The results showed that a total of 231 vascular plant species were recorded across the three stand types,with species richness ranked as mixed forest>Moso bamboo forest>Chinese fir forest.Significant differences in species composition were detected among stand types(P=0.001).Stand structural analyses revealed that the density of woody plants both in mixed and Chinese fir forests exhibited a"J"-shaped distribution pattern of with increases in diameter and tree height,whereas it presented an inverse"J"-shaped pattern in the Moso bamboo forest.The population structure of Calycanthus chinensis showed a discontinuous(multi-peaked)distribution pattern.The Shannon-Wiener and Pielou indices of the tree layer followed the trend of mixed forest>Chinese fir forest>Moso bamboo forest.Furthermore,the multiple diversity indices of the tree and shrub layers in the mixed forest had significantly positive correlations with the growth indicators of Calycanthus chinensis(P<0.05),whereas the density of Moso bamboo individuals showed a significant(0.01≤P<0.05)or extremely significant(P<0.001)negative correlation with the growth of Calycanthus chinensis.These findings suggest that mixed forests and Moso bamboo forests should be prioritized as core habitats for Calycanthus chinensis population recovery.Ecological management should focus on enhancing tree and shrub layer diversity in mixed forests and implementing moderate thinning in Moso bamboo forests to create suitable growth conditions of Calycanthus chinensis populations.关键词
夏蜡梅/植物群落/林分结构/重要值/α多样性/群落结构Key words
Calycanthus chinensis/plant community/stand structure/importance value/α diversity/community structure分类
农业科技引用本文复制引用
YU Zhen,QIN Jiao,JIN Zexin,WANG Xiaoyan..濒危植物夏蜡梅3种林型的群落特征比较[J].森林与环境学报,2026,46(1):82-90,9.基金项目
浙江省自然科学基金项目"濒危植物夏蜡梅与土著AM真菌共生体对土壤磷水平的响应"(LTY22C030004). （LTY22C030004）
