Odisha, a state in eastern India, is extremely diverse and gives the state abundance of natural beauty and wildlife. The districts in the interior are thickly covered by tropical moist deciduous and tropical dry deciduous forests. The hills, plateaus and isolated areas of the northeastern part of the state are covered by the tropical moist deciduous forests whereas the dry deciduos forests are located in the southwest region of the state. Some of the trees which grow in abundance in Odisha are bamboo, teak, rosewood, sal, piasal, sanghvan and haldi. There are 479 species of birds, 86 species of mammals, 19 species of amphibians and 110 species of reptiles present in Odisha. The state is also an important habitat for the endangered olive ridley turtles and Irrawaddy dolphins. Koraput district of southern Odisha has been identified by Food and Agriculture Organisation (FAO) of UN as Global Agricultural Heritage site which is among only other three sites in the world. Other sites are in Peru, China and Philippines.   Almost one-third of Odisha is covered by forests which make up about 37.34% of the total land area of the state. These forests cover most of southern and western Odisha. The eastern plains adjacent to the coast are covered by farmlands. Forest cover, Raghurajpur, Odisha The forest cover of Odisha extends over an area of 58,136.869 square kilometres out of which reserve forests make up an area of 26,329.12 square kilometres (10,165.73 sq mi), demarcated protected forests make up 11,687.079 square kilometres (4,512.406 sq mi) and undemarcated protected forests make up 3,638.78 square kilometres (1,404.94 sq mi). Other types of forests make up 16,261.34 square kilometres (6,278.54 sq mi) while unclassed forests make up 20.55 square kilometres (7.93 sq mi) of the total forest cover. Bon Jour The State Government of Odisha also classifies forests based on their density. About 538 square kilometres (208 sq mi) of land are classified as very dense forests with a canopy density of over 70 percent, 27,656 square kilometres (10,678 sq mi) of forests are classified as moderately dense cover with a canopy density of 40 to 70 percent and 20,180 square kilometres (7,790 sq mi) of land are classified as open forest with a canopy density of 10 to 40 percent.   Odisha is the waste state plants and animals. Odisha's forests yield large quantities of teak and bamboo. Teak, apart from medicinal plants and kendu leaves contribute substantially towards Odisha's economy. Odisha's forest ecosystem has been greatly affected by deforestation and illegal smuggling and poaching. The state government has established the Odisha Forest Development Corporation to combat the menace of smuggling. The State Pollution Control Board has brought a set of rules to force in order to combat environmental pollution.