千年桐人工林物种多样性研究

为了研究大面积人工种植的千年桐林中植被类型和物种多样性的变化,以福建省建瓯市小松镇千年桐林及其周围环境为研究区域,通过样方调查法,运用传统生态学的研究方法,运用重要值、多样性、丰富度、均匀度等指标,研究分析千年桐林结构、种类组成和物种多样性。结果表明,千年桐人工林群落内种类和个体数均较为稀少,但不同样方内物种变化较为复杂且不呈现出一定的规律性。千年桐样方内出现67种,隶属49科63属,其中以乔木层的科属种数最少。比较不同层次树种重要值大小,乔木层灌木层草本层。物种多样性差异与不同生境条件有关,灌、草层中虽然物种数多、丰富度高,但物种分布的均匀度和优势度比乔木层高。

Study on the Species Diversity in Aleuritesmontana Plantation Forest

To study Aleurites montana Plantation Forest planted in a large scale on the variation of type of vegetation and species diversity. The Plantation Forest and surroundings as the study area.The structure, species composition and diversity among Aleurites montana Plantation Forest,using important value,diversi?ty,richness and evenness by quadrats survey and methods of traditional ecological. The results showed that species and individuals within the community are more scarce in Aleurites montana Plantation Forest. More complex species changes in different quadrats and not showed a certain regularity. There were 67 species belonging to 49 families and 63 genera in the Eucalyptus forest,families and genera are the least of tree layer. Comparison of species important value of different levels,tree layer>shrub layer>herb layer. Diver?sity of species with different habitat conditions,species richness and high rich in the shrub layer and the herb layer,but evenness of species distribution and dominance are the most of tree layer.