Before the reform and opening up

the species composition and landscape pattern at Futian Nature Reserve were similar to Maipo Nature Reserve. A rapid urbanization at Shenzhen city during the past 30 years has led to the landscape fragmentation process at Futian mangrove wetland

which resulted in a divergence of mangrove communities or landscape pattern on both coasts. In this study

based on analysis of high resolution WorldView-2 image

we classified the present pattern of communities and landscape

then qualified the fragmentation degree between both sides. The overall accuracy of mangrove community classification was 0.902

and the Kappa coefficient was 0.859. Our results also indicated: ① The mangrove at Maipo nature reserve covers about 346 hm

2

while it is about 89 hm

2

at Futian. Kandelia candel community is the leading dominant landscape type at Shenzhen Bay

and Avicennia marina community and Aegiceras corniculatum community are dominant communities; ②The landscape fragmentation degree at Futian Reserve is higher than that at Maipo Reserve. In particular

the pattern of both local communities Avicennia marina community and Kandelia candel community fragmented seriously; ③ The landscape patch shape of Futian Reserve is square mostly

which indicated an effect of anthropogenic factor. On the contrary

the pattern at Maipo Reserve showed mainly an irregular distribution

indicated an effect of natural factor.