广西植被的自然环境条件对广西植被的影响

Influence of Natural Environmental Conditions on the Vegetation in Guangxi

关键词:  植被性质  植被特点  自然环境

Key words:  vegetational properties  vegetational characteristics  natural environment

摘要:

位于中国南部的广西,地层组成复杂,起源古老,地区差别大;多山,地形复杂,中部有特殊的的弧形山脉;热量和降水丰富且受地形影响大;成土母岩复杂,有地域性成土风化壳,由此,为广西创造了丰富而复杂的植被类型,使广西西南部成为中国特有现象中心之一,使广西产生具过渡性质的热带植被,形成东低西高的植被纬度地带格局,造成犬牙交错的水平分布现象,为广西保存了一批起源古老、残余的或孑遗的植被类型,并造就了广西特有的非地带性植被类型。

Abstract:

Guangxi is located in south of China,is moutainous region where landform are complex and there is a arcuate moutain in the middle area.The stratum is ancient and complex in component, and great different in different areas.The heat and precipitation are greatful and effected by landform.The mother rocks are also complex and there is the regional soil forming weathering shell. The influence of these natural environmental conditions on the vegetation of Guangxi are as follows:the rich and complex vegetation types are created;the south-west of Guangxi becomes one of the centre of species peculiar phenomenon in China;the tropical natural forest has the transitional characters; the latitude of vegetational zone in the east is lower than that in the west;the horizonal distribution of vegetation shows jigsaw pattern;the relic communities are kept and the peculiar non-zonal vegetational types are created.