古交市植被类型与生物多样性分析

运用GPS辅助技术,以实地采样调查为主,对调查的样方资料进行统计分析,根据优势度原则对古交市的植被类型进行了分类。分类结果表明,古交市物种丰富,其植被类型可以分为5类,即针叶林、阔叶林、针阔混交林、灌丛、荒草丛。应用Margalef丰富度指数(R)、Shannon-Wiener指数(H')、Simpson指数(D)、群落均匀度指数(JH)和(JD)对古交市内5种植被类型的物种多样性进行研究。结果表明,乔木层中以针阔混交林的生物多样性最高,灌木层以荒草丛生物多样性最高,草本层灌丛的生物多样性最高,不同森林类型的生物多样性也不同。  

Analysis of Vegetation Type and Biodiversity in Gujiao City

Field sampling survey with GPS technology was employed to analyze the data of the sample investigated, and the types of vegetation of Gujiao City were categorized according to the dominance principle. The classification re- sult showed that Gujiao has abundant species, and the vegetation types there can be classified into 5 categories ： conif- erous forest, broad -leaved forest, coniferous and broad -leaved mixed forest, shrub and grassland. The species di- versity of the five types of vegetation was studied with Margalef richness index （R）, Shannon -Wiener index （H）, Simpson index （D）, evenness index （JH） and （JD） . The results showed that the coniferous and broad -leaved mixed forest was highest in biodiversity while in shrub layer, the wild grass had the highest biodiversity and the biodi- versity of herbaceous shrub was highest in grass layer. Forests of different types showed differences in biodiversity.