西双版纳茅草山广西青梅群落学研究

应用植物群落学的研究方法，对西双版纳茅草山广西青梅群落进行了初步研究。该群落是以龙脑香科的广西青梅和金缕梅科的细青皮为乔木上层优势树种，群落分A至E层，外貌以单叶、纸质、全缘、尾尖、中叶为主的常绿大、中高位芽植物组成为特征，层间木质藤本和附生植物丰富，属热带季节雨林。该群落是老挝热带季节雨林向北的伸延，物种丰富，动态结构稳定，但分布面积狭小，生态脆弱，需重点保护。

A Phytocoenological Study on Vatica guangxiensis (Dipterocarpaceae) Community in Mt. Maocaoshan, Xishuangbanna

A preliminary study of Vatica guangxiensis community in Mt.Maocaoshan of Xishuangbanna is carried out by means of the phytocoenological method.Vatica guangxiensis (Dipterocarpaceae) and Altingia andersonii (Hamamelidaceae) are dominant tree species of the upper layer in the community,which can be divided into A,B,C,D,E layers.and is mainly charactered by evergreen megaphaenerophytes and mesophaenerophytes with simple,chartaceous,entire,caudal mesophyll leaves.There are a lot of wooden lianas and epiphytes between layers.Being the northern extension of the tropical seasonal rain forest of Laos,the community is rich in species,stable dynamic structure,limited distribution, fragil ecosystem as well as urgent need for prior protection.