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Chinh
Cong
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Location:
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21°31'N, 105°05'E; 5 km from Vu Yen Town and the Red River, Thanh Hoa District, northwestern Vinh Phu Province. |
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Area:
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400 ha. |
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Altitude:
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10-20m. |
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Biogeographical
Province:
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4.10.4. |
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Wetland
type:
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14. |
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Description
of site:
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A small, natural freshwater lake with abundant aquatic vegetation, in the Red River basin. The water level varies considerably between the dry season and the wet season. The lake is fed by two streams, the Ca and Ky, which show pronounced seasonal variations in flow. During the rainy season, the lake also receives silt-laden floodwaters from the Red River through a canal and from bank overflow. The lake is surrounded by rice paddies and low hills. In the past the hills were covered with forest, but this has now been cleared for agricultural land and human settlement. |
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Climatic
conditions:
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Tropical monsoonal climate. |
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Principal
vegetation:
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The lake supports a rich growth of aquatic plants including species of Nymphaea and Lotus. |
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Land
tenure:
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Owned by the People's Committee of Thanh Hon District. |
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Conservation
measures taken:
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None. |
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Conservation
measures proposed:
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Land
use:
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Fishing, fish culture and water supply for irrigation. Rice is grown on the margins of the lake during the dry season. |
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Possible
changes in land use:
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| Disturbances and threats: | Parts of the lake and marshes have been drained for agricultural purposes, and the aquatic resources are being over-exploited. The lake formerly supported a very rich fish and bird fauna, but as a result of interference with the water level and other disturbances, fish and bird populations are now much reduced. |
| Economic and social values: | The lake is important for agriculture, irrigation purposes and fish culture. Fish production is currently about 25-30 metric tonnes per year. |
| Fauna: | A very important wintering area for migratory waterfowl, notably cormorants, ducks, geese and shorebirds. A species of pelican Pelecanus sp also occurs. Waterfowl populations have, however, declined in recent years as a result of drainage activities and excessive disturbance. |
| Special floral values: | No information. |
| Research and facilities: | |
| References: | |
| Criteria for inclusion: | 1b, 3b. |
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Source:
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Le Dien Duc. |