| Area of land use/land cover of study catchments- | ||||||
| Land use/cover classes | 1986 Area | 2011 Area | 2015 Area | |||
| Ha | % | ha | % | Ha | % | |
| Intense cultivation | 139,300 | 33 | 123,100 | 29 | 118,400 | 28 |
| Moderate cultivation | 145,300 | 34 | 130,900 | 31 | 137,800 | 33 |
| Forest land | 75,100 | 18 | 63,300 | 15 | 71,800 | 17 |
| Grass land | 62,700 | 15 | 97100 | 23 | 78,900 | 19 |