Yen Tu special used forest is located in Thuong Yen Cong villige, Uong Bi district, Quang Ninh province, about 40 km northeast from Halong City and 150 km southwest from Hanoi capital. Yen Tu possesses a great biodiversity. At elevation above 700m there are 423 plant species belonging to 262 genera and 124 families of 4 higher vascular plant divisions which are Lycopodiophyta, Polypodiophyta, Gymnospermae and Angiospermae. Among these species, 325 are very useful in 12 different ways, 14 are unique in the Red Data Book of Viet Nam (1996), 4 are listed in Government Degree 32/NĐ-CP/2006. At around 700m elevation of the Yen Tu forest, vegetation is closed subtropical evergreen seasonal submontance forest with 3 main associations. This vegetation is presently affected, so it is necessary to create solutions for its conservation.
Phung Van Phe
Vietnam forestry University
Tran Minh Hoi
Institute of Ecology and Biological Resources