Table 3.
Fluctuation of the wetland ecosystem cover in the Dong Rui commune during 1975–1990 (unit: ha).
| Year | In 1990 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| In 1975 | Wetland ecosystem cover | Mangrove | Plantation forest | Water surface | Aquaculture lagoon | Agricultural land | Rural land | Others land | Total |
| Mangrove | 2,552.36 | 8.59 | 716.29 | 61.84 | 33.63 | 1.15 | 38.83 | 3,412.69 | |
| Plantation forest | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Water surface | 101.40 | 0.64 | 853.97 | 37.64 | 3.78 | 0.00 | 13.26 | 1,010.69 | |
| Aquaculture lagoon | 10.13 | 0.00 | 0.00 | 0.00 | 0.57 | 0.00 | 10.70 | ||
| Agricultural land | 4.18 | 1.01 | 0.06 | 0.08 | 2.82 | 0.12 | 11.52 | 19.79 | |
| Rural land | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Others land | 33.61 | 26.82 | 3.05 | 25.80 | 253.50 | 14.68 | 90.67 | 448.13 | |
| Total | 2,701.68 | 37.06 | 1,573.37 | 125.36 | 294.30 | 15.95 | 154.28 | 4,902.00 | |
(Values show the area of converted land use from 1975 to 1990).