厦门海沧地区植被考察

据对本省重点的外商投资开发区厦海沧地区7个地点、18处样地共1400m~2的现状植被调查统计.共含维管束植物127种,分隶47科108属.群落区系以禾本、菊、大戟、豆和茜草等科为主;泛热带和热带分布地理成分分别占总属数的44.7%和35.1%.其草本和灌木生活型分别占总数的45.4%和41.2%;小叶占叶级总数的70.3%,草质和薄革质叶分别占叶质总数的66.9%和26.3%.群落类型有台湾相思树林、马尾松林、台湾相思树与马尾松混交林和以热带性灌木、禾草类为主组成的灌草丛.全区植被具明显适应于高温、风大和秋冬季偏干燥等南亚热带海岸生境的特点.

VEGETATION SURVEY OF HAICANG AREA IN XIAMEN, FUJIAN

This paper deals with the floristic composition, physiognomy, structure, synthetical features of chief species and distribution of type of vegetation of Haicang area in Xiamen, Fujian.According to the surveys of 1400m2 in 18 plots, there are 127 species of vascular plants belonging to 108 genera in 47 families. Single genus and minor genus made up 83.3% and 16.7% of total number of genera respectively. Analysis of floristic geographical elements indicates that the percentags of pan-tropical and tropical elements (such as the genera of Gramineae, Compositae, Euphorbiaceae, Leguminosae and Rubiaceae, etc.) are dominant making up 44.7% and 35.1% of the total numbers of genera respectively.All communities may be divided into 4 native vegetation types and 4 formations in this area, with Acacia confusa and Finus massoniana are dominant tree species in the forests, and Breynia fruticosa, Gardenia psminoides, Helicteres angustifolia and Rhodomyrtus tomentosa, etc. are dominant species in shrubberies.