【摘要】 <正> 荔波南部的喀斯特森林植被是我国亚热带保存较好的奇特植被之一,以其特有的岩溶地貌、植物种类和特殊生态环境而引起々家们的关注和兴趣。为了弄清这片喀斯特森林植被的类型、结构、分布和现状,在1980年以来历次调查的基础上,我们又于1984年4至5月,集中地进行了一次群落学考察,以促进喀斯特森林植被的研究,为喀斯特地区的开发利用和自然保护工作提供科学依据。现将考察结果论述于下:更多还原

【Abstract】 In the karst forest of south Libo the vegetation is of the few natural ones that are kept fairly intact. It has three features. 1) Species: they are the elements of the prototypic karst mixed evergreen-deciduous broadleaf forest in median subtropics. 2) Forest faces: coniferous forest is green all the year round; mixed evergreen-deciduous broadleaf forest green in spring, summer and autumn, but mixed up with yellow and brown in winter. 3) Structures: coniferous forest is simpler than mixed evergreen deciduous broaldeaf forest. It is of six communities:(1)Pinus kwangtungensis Comm., (2) Palatycarya longpes+Quercus engleriana Comm., (3)Koelreuteria minor+Carpinus pubuscens+Photinia glabra Comm., (4) Celtis julianae+Zelbra serrata Comm.,(5) Pistacia chineesis+Zenia insignis+Cladrastis platycarpa Comm. and (6) Toona sinensis var. sehensiana+Kaloparax septemlabus+Hovenia dulcis Comm. The development of these communities is dependent on the change of the elements and their structures. The general succession law of the mixed evergreendeciduous broadleaf forest is shown in the diagram. As all natural communities, they have the evident ecological characteristic-to adapt themselves tO the environment around, meanwhile to change it.更多还原