云南思茅翠云石灰岩山地区森林植物区系研究

 思茅翠云石灰岩地区森林是一种热带北缘森林类型,群落面积462.07 km². 经野外详细的采集调查,共有维管束植物133科248属348种,其中种子植物107科240属340种、亚种和变种。森林群落为原生性状和次生性状两种类型构成。种子植物分布区类型组成是:热带、主产热带或主产亚热带的科占总数的71.0%,热带分布属占总属数的72.5%,其中,16.7%为热带亚洲分布属,分布区类型组成表明,该植物区系属于热带边沿性质,是热带亚洲区系的一部分。由于该区地理位置特殊,是许多热带植物的分布北界,同时又是几种热带和亚热带植物成分的交汇地带,使翠云石灰岩森林植物区系带有热带边沿性质和几种地理成分交汇的特点。

Study on the Plant Flora of Limestone Area at Cuiyun Mountain, Simao, Yunnan Province

The plant flora of limestone in Cuiyun Mountain, Simao prefecture is a north-edge tropical forest type. It coved an area of 462.07 km². The investigation of Cuiyun Mountain showed that there are 133 families, 248 genera, 348 species fascicular plants, of which, 107 families, 240 genera, 340 species are seed plant, subspecies or variations. The flora belongs to the originality and regrowing plants. Among the seed plant, 71.0% of the total families and 72.5% of the genera are tropical and subtropical families and genera. 16.7% is the Asian-tropical distributing genera. From the investigation, this area is a part of Asian-tropical flora. As the typical geography location, Cuiyun become mixture plant flora with tropical and subtropical and with the characteristics tropical board combine with the different topography.