Sundarbans mangrove forest, Bangladesh. Rhizophora sp. are found only near the sea. The bright calorific value of their wood has resulted in overexploitation of the species and they are now rare. - - Integrated Resource Development of the Sundarbans Reserved Forest: BGD/84/056. An agreement was made between the Government of Bangladesh and the United Nations Development Programme for implementation of the project by the Ministry of Environment and Forests and for its execution by FAO, and the project document was signed in 1990