江西赣江源国家级自然保护区香果树种群及群落结构分析

Study on the population structure and community structure of Emmenopterys henryi in Ganjiangyuan National Nature Reserve,Jiangxi Province

香果树为国家二级重点保护植物,种群数量多数不超100株。本文通过对江西赣江源国家级自然保护区香果树种群每木调查,对所在群落植物多样性进行样地调查,结果表明:保护区内共发现活体香果树48株,Ⅳ级幼树最多,占58.33%。种群中幼树死亡率较高;6个样地内共统计到129种维管植物,分属于62科103属;样地1、样地2的乔木层生物多样性指数较高。香果树所在群落植物以高位芽植物为主。

Emmenopterys henryi is a national second-class key protected wild plant.Most populations quantity were less than 100.In this paper,we investigated each plant of E.henryi,and the diversity of the community in Ganjiangyuan National Nature Reserve,Jiangxi Province.The results showed that 48 living E.henryi were found in the reserve,and the saplings of grade Ⅳ were the most,accounting for 58.33%.Sapling mortality was higher in the population.A total of 129 vascular plant species belonging to 62 families and 103 genera were recorded in 6 plots.The biodiversity index of tree layer in plot 1 and plot 2 was higher.The community plants of the E.henryi were mainly phanerophyte.