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Temporal dynamics of landscape pattern in the protected natural forest area of Bawangling,Hainan

LIU Xiao-shuang,HUANG Jian-wen,JU Hong-bo(Research Institute of Forest Resource and Information Technique,Chinese Academy of Forestry Sciences,Beijing 100091,China)  
Using TM remote sensing image of two periods in 1998 and 2006,as well as forestry resource survey map,this article presented the landscape classification and landscape indexes in the protected natural forest area of Bawangling,Hainan.By comparing the two remote sensing images,it showed that the landscape in Bawangling of Hainan was preserved well.From 1998 to 2006,the forest area was increased to 6 454.2 hm2,and the virgin forest breaking was declined and the interference was weakened.Meanwhile the total interference degree of the landscape was also decreased.Although the quality of natural secondary forest recovered,it was eroded by planted forests all the same.5 949.86 hm2 of medium secondary forest had been transformed into light secondary forest.rubber forest and young plantations were increased greatly while waste land was decreased significantly,and the result of afforestation was remarkable.
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