2.3.1. Land use changes
We used Landsat TM data (30 m, RGB band 5, 4, 3) to analyze land use change between 2002, 2004 and 2007 using 11 land and water use types: agricultural land, shrimp and fish ponds, salt pans,mangrove forests, terrestrial forests, mine and gravel pits, communities, industries, water bodies, marine areas out to 3 km from the shore and others (area of peat swamp forests, beach).