Data Summary: Dong-hu (Lake Dong)
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| Site Name |
ASI-12 |
Photo : T. Kira |
| Lake Name |
Dong-hu (Lake Dong) |
| State |
Hubei Province |
| Country |
P. R. China |
| Latitude |
30:3N |
| Longitude |
114:2E |
| Altitude [m] |
20.5 |
| Surface area [m2] |
27,900,000 |
Volume [m3] |
62,000,000 |
| Maximum depth [m] |
4.75 |
Mean depth [m] |
2.2 |
| Water level control |
Regulated |
Normal range of annual water level fluctuation [m] |
0.5 |
| Length of shoreline [m] |
9,200 |
Residence time [yr] |
0.44 |
| Catchment area [m2] |
97,000,000 |
Hours of bright Sunshine [hr yr-1] |
1,624 |
| Solar radiation [MJ m-2 day-1] |
12.53 |
Freezing period |
Jan or Feb |
| Mixing type |
Polymictic |
Annual fish catch [t yr-1] |
801.5 |
| Total N loading [t yr-1] |
536.3 |
Total P loading [t yr-1] |
87.8 |
| Population |
200,000 |
Population density of catchment area [person km-2] |
2,062 |
WATER USAGE
| Domestic water usage [m3 sec-1] |
- |
Irigation water usage [m3 sec-1] |
- |
| Industrial water usage [m3 sec-1] |
- |
Power generation usage [m3 sec-1] |
- |
LAND USE
| Natural landscape [%] |
- |
Agricultural land [%] |
35.3 |
Others [%] |
27.6 |
| Siltation |
Not Serious |
Toxic Contamination |
- |
| Eutrophication |
Serious |
Acidification |
None |
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