Research Article
Impacts of Intensified Agriculture Developments on Marsh Wetlands
Table 1
Transformation matrix of landscape and land use within the study area during the period from 1975 to 1989 (unit: km2).
| 1975 | 1989 | Marsh | River and pool | Forest | Meadow | Paddy field | Dry farmland | Other types | Total | Proportion (%) |
| Marsh | 759.87 | 16.18 | 72.20 | 137.31 | 252.9 | 383.30 | 0 | 1621.74 | 67.10 | River and pool | 9.20 | 206.93 | 7.39 | 19.29 | 5.61 | 7.75 | 0 | 256.17 | 10.60 | Forest | 24.79 | 5.45 | 86.11 | 14.14 | 44.27 | 62.22 | 0 | 236.96 | 9.81 | Meadow | 36.37 | 9.95 | 22.05 | 72.68 | 15.74 | 33.12 | 0 | 189.90 | 7.86 | Paddy field | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | Dry farmland | 22.70 | 0.04 | 1.85 | 3.41 | 32.65 | 51.38 | 0 | 112.03 | 4.64 | Other types | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 852.92 | 238.54 | 189.60 | 246.82 | 351.16 | 537.76 | 0 | 2416.80 | Proportion (%) | 35.29 | 9.87 | 7.85 | 10.21 | 14.53 | 22.25 | 0 | 100 |
| Variation rate (%) | −47.41 | −6.88 | −19.99 | +29.97 | / | +380.01 | 0 | | |
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