Analysis on Landscape Pattern of Forest Farm in Caijiachuan of Huanglongshan

Based on 1∶50 000 stock map of forest farm in Caijiachuan of Huanglongshan and the interpretation of satellite aerial photo in 1997,the landscape pattern and its degree of fragmentation in this area were analyzed with landscape analysis software Fragstats 3.3 from overall characteristics,patch area,patch number,patch perimeter,fractal dimension and adjacent degree index of the landscape.The results showed that the forest land was the most complete with the largest area,other types of landscape mostly showed scattered distribution with small area.The perimeter ratio of nursery,cutting-blank,afforestation land and suitable forest land in the whole landscape and their boundary perimeter of patch were smaller,and their degree of fragmentation were higher.The fractal dimension of all landscape elements were low(close to l),which indicated that the fold degrees of patch boundary of all landscape elements were lower,and the boundary shape of the whole landscape was simple.The adjacent degree index of forest land was the biggest,and its degree of fragmentation was the lowest,so its contribution to the stability of the whole ecosystem was the biggest.