| Sample no. | GPS | Physiography | Land type | Fertilizer used | Cropping pattern | Cultivation duration |
| Cultivated soils | ||||||
| Field 1 | 22˚21.530'N 89˚38.068'E | Gangstidal floodplain | Low land | Urea, TSP, Cow dung | Fallow-Rice-Rice + Shrimp | About 10 years, halt after Aila* (since 2009), started again 2014 |
| Field 2 | 22˚21.541'N 89˚38.070'E | Urea, TSP, Cow dung, Poultry manure, Compost | Vegetables-Rice-Fallow | About 20 years | ||
| Field 3 | 22˚21.530'N 89˚38.069'E | Urea, TSP, Cow dung, Poultry manure, Compost | Fallow-Rice-Rice + Shrimp | About 18 years | ||
| Field 4 | 22˚21.520'N 89˚38.060'E | Urea, TSP, Cow dung | Fallow-Rice-Rice + Shrimp | About 18 years | ||
| Reference forest soil (mangrove vegetation) | ||||||
| Location 1 | 22˚21.54'N 89˚38.370'E | Gangs tidal floodplain | Low land |
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| Location 2 | 22˚21.55'N 89˚38.374'E |
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| Location 3 | 22˚21.60'N 89˚38.76'E |
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| Location 4 | 22˚21.60'N 89˚38.76'E |
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