摘要
本文报导了四川省荣县金花乡桫椤自然保护区植物区系组成成分的特点．区系分区为泛北极植物区，中国－日本森林植物亚区，华中植物地区．属分布区类型，热带成分５８．３３％，温带成分４０．２８％，地中海成分０．６９％，中国特有成分０．６９％，全世界分布的属有１２属．植被类型为中亚热带常绿阔叶林，以常绿阔叶乔木占优势，革质叶最多，中型叶占较大比例。
The Jianghuaxiang Alsophila Spinulosa Natural Reserve is situated at the point of 29°11′ N, 104°6′ E, in Rong County, Sichuan Province. The type of the plant cover is the subtropical evergreen broadleaved forest, and the floristic elements are complicated in the natural reserve. According to A. Engler′s system, the identified vascular plants here belong to 252 species of 175 genera of 91 families. These plants include 30 species of 24 genera of 19 families pteridophytes, and other 222 species of 155 genera of 72 families spermatophytes. As to the growth type, there are 79 species of trees, 39 species of shrubs, 30 species of Lianes and another 104 species of herbs. The flora here belong to the Central China region of Sino Japan Forest subkingdom of the Holarctic Kingdom. On the distribution patterns of genera there are 84 genera of tropical, 58 genera of temperate, 12 genera of cosmoplitan, 1 genera of Mediterranean and 1 genera of China endemic distribution. For the vegetation, the evergreen broadleaved trees are domenant, most of trees are evergreen phanerophytesand less of leaves are chartaceous and microphylls, the secondary characteristic is not very obvious, which is firmly connected with the enviromental condition in the region.
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
1997年第2期82-88,共7页
Journal of Sichuan Normal University（Natural Science）
基金
四川省教委青年基金
关键词
桫椤
自然保护区
植物区系
植被
群落
四川
lsophila spinulosa, Natural reserve, Flora, Vegetation, Distribution type
