湖南阳明山国家森林公园映山红群落特征研究

摘要

Using the method of sample plot,the Rhododendron simsii community in Yangming Mountain National Forest Park in Hunan was investigated and the community composition,the structure and species di-versity were studied.The results showed that in the Rhododendron simsii community Rhododendron simsii,Ca-mellia sinensis and Hydrangea paniculata were the dominant species.The community was composed of 23 spe-cies,belonging to 13 families 18 genuses and 9 geographical distribution types;the tropical genera were slightly more than the temperate genera;in term of life form,the microphanerophytes(66.38%)were dominant and the dominating characters of leaf were mesophyll,microphyll(95.66%),simple,coriaceous,unentire.Diversity in-dex analysis showed that the simpson index was 0.41,Shannon-wiener index was 1.28 and pielou evenness in-dex was 0.40,which shows that the stability and uniformity of the community are poor,it is still in the early-middle stage of succession,thereafter the succession of the community tends to continue.%采用样方法,对湖南阳明山国家森林公园映山红群落的物种组成、结构特征以及物种多样性等群落特征进行调查与分析.结果表明:阳明山映山红群落是以映山红(Rhododendron simsii)、茶(Camellia sinensis)以及圆锥绣球(Hydrangea paniculata)为优势种的植物群落,共有植物23种,隶属于13科18属9个地理分布型,热带属略多于温带属;群落的生活型以小高位芽植物(66.38%)为主,叶级以中小型叶(95.66%)为主,叶片特征以单叶、纸质非全缘型叶为主.阳明山映山红植物群落Simpson多样性指数为0.41、Shannon-Wiener多样性指数为1.28、Pielou均匀度指数为0.40,说明阳明山映山红植物群落稳定性与均匀性较差,尚处于演替的前中期,有继续演替的趋势.