Monitoring The Areal Variation Of Mangrove In Beibu Guif Coast Of Guangxi China With Remote Sensing Data

Mangrove is a kind of woody plant community which is naturally distributed in tropical, subtropical Bay, estuary and other areas. Due to growing in the shoal and mud of the intertidal zone, it is difficult to be accurately divided the boundary by the researchers in the conventional field surveying methods. The remote sensing have some advantages in wider coverage area, higher efficiency and less costs. It can be effectively extracted the information from the changing of mangrove. To analysis on the changes of mangrove in Guangxi Beibu Gulf quantitative, this study selected the Landsat satellite data and collected from 1978 to 2014 years of remote sensing image, and chose Guangxi Shankou mangrove reserve as the researching area. Combining to the field investigation and the data of the resources, this study interpreted the changes of the mangrove area in the mangrove reserve of Guangxi Shoukou. The mangrove area had decreased in the first and then had increased in mangrove reserve of Guangxi Shankou. From 1978 to 1989, Guangxi Shankou mangrove area had decreased sharply. From 1989 to 2014, it had recovered gradually. The simple model about mangrove biomass estimation was established by the remote sensing image in 2005. It analysed the mangrove distribution in Guangxi Shankou mangrove reserve of Dandou sea and Yingluo Bay area, and the distribution of biomass was been drawn. Based on analysis the driving factors of the changes of mangrove in Guangxi Shankou reserve, the suggestions and measures for the protection of mangrove ecosystem were put forward, which provided the references and data supports for the management and protection of the mangrove.