香港鹅耳枥(桦木科)的群落特征

Community Characteristics of Carpinus insularis (Betulaceae)

摘要:

为保护香港特有植物香港鹅耳枥，基于典型样地调查，对香港鹅耳枥所在群落进行了研究。结果表明，在225 m²的样地内，有维管植物37科66属68种。建群种为香港鹅耳枥，个体高度最高3 m，所在群落植株平均高度0.92 m，分层不明显。位于中国香港岛的香港鹅耳枥处于衰退状态，小个体极少。因此，建议采取就地保护和迁地保护措施，以重建种群。

关键词:香港鹅耳枥;群落;濒危植物

Abstract:

In order to protect Carpinus insularis, an endemic species to Hong Kong, the community characteristics of C. insularis were investigated by using typical plot method. The results showed that there were sixty-eight species vascular plants, belonging to 66 genera, 37 families within a quadrat of 225 m². Carpinus insularis is the constructive species with the maximum height to 3 m, but its average height in this community is 0.92 m. The C. insularis community in Hong Kong Island showed recession with very few young individuals. Therefore, it was suggested that the managements of in situ and ex-situ conservation would help to re-establish populations.

Key words:Carpinus insularis;Community;Endangered species