福建戴云山自然保护区植被景观斑块特征分析

利用戴云山自然保护区的植被分布图和地形图等,在GIS软件支持下提取植被景观斑块信息,从植被景观组分斑块特征的角度对戴云山自然保护区的植被景观格局及破碎化进行分析.研究结果表明,在戴云山自然保护区中,温性针叶林、常绿阔叶林、暖性针叶林景观是该区的3个主要景观类型;景观组分的面积、周长、斑块数的分布不均衡;各景观组分面积与周长的分布相似,而斑块数的分布却没有明显的规律性.植被景观斑块总体特征分析表明,农地景观的破碎化程度高,而温性针叶林、常绿阔叶林与暖性针叶林景观的破碎化程度低.

Analysis on the patch characteristics of vegetation landscape of Daiyunshan nature reserve in Fujian

Using the vegetation distribution and topographic map of the Daiyunshan nature reserve,with the help of GIS software to get the information of the vegetation landscape patch,analyzed the vegetation landscape pattern and fragmentation based on patch characteristics of vegetation landscape elements in the Daiyunshan nature reserve.The results showed that mild conifer forest,evergreen broad leaf forest and warm conifer forest are three main components in the Daiyunshan nature reserve.The area,perimeter and the number of patches of different landscape elements are uneven.The distribution trend of area and perimeter is similar in different landscape elementst,he distribution law of the number of patches is not distinct.The vegetation landscape patch collectivity characteristics indicate that the degrees of fragmentation of farmland landscape is higher that those of landscape elements,and the degrees of fragmentation of mild conifer forest,evergreen broad leaf forest and warm conifer forest are all lower.