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.