广州帽峰山森林公园植物区系研究

Floristic Study in Maofengshan Forest Park,Guangzhou

通过线路调查法对广州帽峰山森林公园进行了植物调查,在采集、鉴定标本和查阅有关资料的基础上研究了该地区的植物区系组成及特点.据统计,帽峰山森林公园有维管植物610种(含种下等级),隶属146科398属.樟科、桑科、山茶科、壳斗科、紫金牛科、芸香科、金缕梅科、冬青科等是该区系的主要表征科,构成了其各森林类型的主要树种组成.该植物区系地理成分复杂多样,种子植物共有375属,划分为13个类型和12个变型,其中以热带-亚热带成分占明显的优势,占该地区种子植物属的80.21%,热带及温带区系成分均有相当的影响,各种区系成分互相渗透.通过对帽峰山森林公园植物区系的归属问题的讨论,认为帽峰山森林公园植物区系是中亚热带向南亚热带过渡的区系类型;是在华南台地上发育起来的,为华南植物区系组成部分,隶属于古热带植物区系.

This paper is a preliminary analysis on the flora in Maofengshan Forest Park （MFSFP）. MFSFP is located at the northeastern of Guangzhou City, at latitude 23°16′9＂-23°19′26＂N and longitude 113°22′5＂-113°29′32＂E, with a total area of 5362hm^2. The highest peak is 534. 9m. In MFSFP, according to our collection and identification, there are 610 species of wild vascular plants（ including infraspecific taxa）, belonging to 146 families and 398 genera. The dominants of the forest community are mainly of the following families： Lauraceae, Moraceae, Theaceae, Fagaceae, Myrsinaceae, Rutaceae, Hamamelidaceae and Aquifoliaceae. According to the geographical distribution patterns. 375 genera of the spermatophyte can be divided into 13 types and 12 subtypes. In the flora, the elements of tropicalsubtropical genera are more abundant （80.21%）. Tropical and temperate floristic elements have similar effects on the MFSFP. In this paper, the problem of dealing with the floristic assignment in MFSFP are discussed. The authors argue that the MFSFP flora should be a part of the＂ Austro-Cathaysia Region＂, belonging to the ＂Paleotropical Kingdom＂.