东莞林科园植被生态评价

在野外调查获取数据的基础上,通过数据库构建、数据分析及建模等,评价了目前东莞林科园的植被和土地利用状况.结果表明:东莞林科园内现有柠檬桉Eucalyptus citriodora林、马占相思Acacia mangium 林、湿地松Pinus elliottii林、柚木Tectona grandis林和流苏相思Acacia sinuate林等5个森林植被类型,乔木层、灌木层和草本层的Shannon-Wienner指数值的变化范围介于1.53～2.22、1.30～3.13和1.75～3.04之间.不同层次植被的Shannon-Wienner指数值大小依次为:灌木层＞草本层＞乔木层.基于层次分析法的模糊综合评判结果表明,植被生态质量最好的是引种圃、树木园和棕榈园,其次是果园和药用植物园,排名最后的是生态园、试验区和赏花园.

Ecological Assessment of the Vegetation in Dongguan Forest Park

This study assessed the current vegetation and land use status in Dongguan Forestry Park by establishing database and data analyses.The results were as follows:(1) Through statistical analysis,Dongguan Forestry Park could be grouped into five vegetation types: Eucalyptus citriodora forest,Acacia mangium forest,Pinus elliottii forest,Tectona grandis forest,and Acacia sinuate forest,which Shannon-Wienner index of arbor layer,shrub layer and herbage layer were 1.53-2.22,1.30-3.13,1.75-3.04;(2) The Shannon-Wienner index of the different layers was shrub layer> herbage layer> arbor layer;(3) Using AHP(analytic hierarchy process) with the inquisitional results,quality evaluation was done in the eight functional sections in the Forest Park.The best vegetation ecological quality was species introduction section,coming next were the tree garden,palm garden,fruit garden,medicinal plant garden,ecological garden,experience garden and flower garden.