Cam Son Reservoir
Location:	21°32'N, 106°34'E; 15 km north of Luc Ngan District Town, in northern ha Bac Province.
Area:	2,620 ha.
Altitude:	c.100.
Biogeographical Province:	4.6.1.
Wetland type:	17.
Description of site:	A water storage reservoir with a capacity 250 million cubic metres, created in 1960 by a dam on the Hoa River, a tributary of the Thuong River. The reservoir is 25-30 km long and 8-15 km wide. The surrounding hills rise to 300m, and there are limestone hills and cultivated areas to the southeast. A decade ago, the adjacent slopes were densely forested, but most of the forest has now been cleared for timber, firewood and agricultural land.
Climatic conditions:	Tropical monsoonal climate with an average annual rainfall of 1,395 mm, a mean annual temperature of 21.4°C and a mean relative humidity of 31%.
Principal vegetation:	No information is available on the aquatic vegetation. There are some shrubby areas and patches of secondary forest on the adjacent hillsides.
Land tenure:	Owned by the People's Committee of Luc Ngan District.
Conservation measures taken:	Some reafforestation is being carried out in the water catchment area.
Conservation measures proposed:
Land use:	Generation of hydro-electricity, fishing and water supply for irrigation.
Possible changes in land use:
Disturbances and threats:	The most serious threat is the use of poisons and explosives to catch fish, resulting in large-scale destruction of aquatic resources.
Economic and social values:	The reservoir produces 4,500 kw of hydro-electricity, and supports a significant fishery, with an average production of 70 kg/ha.
Fauna:	The reservoir provides a sanctuary for a variety of native stream fishes, and is an important staging and wintering area for migratory waterfowl.
Special floral values:	None known.
Research and facilities:	Some studies have been carried out on fisheries production.
References:	Nguyen Van Hao (1979).
Criteria for inclusion:	2b, 3b.
Source:	Le Dien Duc.