Mangrove wetlands,a typical ecosystems in tropical and subtropical coastal areas,play a very important role in ecological services.Because of special ecological functions and high economic and social values of mangrove,its study is becoming a hot topic recently.In order to promote the protection and utilization of mangrove ecosystem,this paper reviewed some ecological functions of mangrove ecosystems which can provide large quantity of organic matters,epeirogenic processes and shelterbelts,and protect dikes and seashores,reduce disasters,decrease water pollution,sustain high biodiversity in wetlands,provide medicine resources and ecotourism etc.This paper also pointed out that further studies should be conducted on the ecological processes,effects and value assessment of mangrove wetlands in the future.
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