摘要
调查研究了广西岩溶地区森林群落的植被类型和主要生态因子。结果表明,岩溶区森林群落土壤化学、物理性质因地质背景以及生物作用等的不同而有所差异;由于森林群落所处的经纬度、坡位、坡度、微地形地貌以及乔木郁闭度、气候情况等的不同,生态因子具有复杂多变的特征,岩溶区生境具有很强的空间异质性。由此认为不同岩溶区森林群落中名、特、优品种的出现主要与岩溶区特殊的地质背景有关。
The types of vegetations in forest communities and main eco-factors in karst areas in Guangxi are studied. It shows that the chemical and physical properties of the forest communities' soil are different in different geologic background and under different biological actions. The eco-factors at different sites are of complicated characters, and the biotopes of forest communities in karst areas are of distinct spatial heterogeneous character due to different longitude and latitude location, different slope, slope degree, topography and arbor trees coverage,climate and so on. So, the authors believe that the famous, special characters of the vegetations in different karst sites are mainly related with the special geologic background.
出处
《中国岩溶》
CAS
CSCD
2004年第1期30-36,共7页
Carsologica Sinica
基金
国家自然科学基金项目(编号30069005)
国家"十五"科技攻关项目(编号2001BA606A-08)
