摘要
在野外样方调查基础上,采用TWINSPAN和DCA对泽州自然保护区植物群落进行了数量分类和排序研究。应用TWINSPAN方法将38个样方分为10组,根据植被分类的原则命名为10个群丛,并论述了各群丛的群落学特征。样方的DCA排序结果反映了植物群落类型与环境因子之间的关系,表明影响植物群落分布格局的生态因子主要有海拔高度、水分和温度,其中海拔高度是生态因子中对植物群落分布起决定性作用的因子。16个优势种的DCA排序的结果表明群落中优势种的分布格局所揭示的环境梯度与群落类型的分布梯度有很大的相似性,优势种的分布格局在很大程度上影响了植物群落的分布格局。排序结果与分类结果比较吻合,反映出植物群落类型和物种分布随环境因子梯度变化的趋势。
Based on the data from the field, the classification and ordination of plant community in Zezhou Nature Reserve were studied by using TWlNSPAN and DCA. 38 samples were divided into l0 groups by TWINSPAN, which belong to 10 associations according to the principle of vegetation classification. Moreover, the characteristics of those communities were described respectively The result from DCA ordination for the samples reflected the relationship between plant community types and the environment gradient, and it showed that the distribution pattern of those communities were mainly dominated by the leading ecology factor, including elevation, humidity and temperature. The DCA ordination of 16 dominant plant species showed that the species acted as indicator for habitat factors and was impersonally reflected characteristics of biotope. The ordination of dominant species was similar to the classification of community types, reflecting the change trend of community type and species distribution changing with environmental factors.
出处
《生态环境》
CSCD
北大核心
2008年第4期1566-1571,共6页
Ecology and Environmnet
基金
山西省自然科学基金项目(2006011077)
山西省留学基金项目(20060024)
