This book has been designed considering differentaspects of environment viz. topography, hydrology,sedimentology & vegetation consists of geomorphicstructure, river hydraulics, vegetation status. Mostof study is based on primary data collected form thecoastal district Cox's Bazar, Bangladesh which has the world'slongest sea beach and a place of great attraction oftourists from different parts of the world. Information has provided here will be very helpful forprofessionals to develop coastal policy which is veryessential for sustainable environmental management in coastal area.

According to the United Nations FAO, land use concerns the products and/or benefits obtained from use of the land as well as the land management actions (activities) carried out by humans to produce those products and benefits. The population of the world is increasing at a geometric rate. But the land is not increasing, in fact, it is static. In this reason to make the optimum use of the existing land, it is very necessary to use the land in proper way. This using the land in proper way to extract its optimum ability is known as sustainable land-use.