Kandelia candel is widely distributed in tropical and subtropical region,and plays a key role in maintaining wetland function.Chlorophyll content is necessary for studying productivity and photosynthesis of vegetation,which can also indicates the healthy condition of vegetation living in a stressed environment.Remote sensing techniques offer timely,up-todate,and relatively accurate information such as biomass,leaf area index and chlorophyll content of wetland vegetation.Although plenty research efforts on e...