Basin | Land Cover | Percentage of Land cover | ||||
1939 | 1953 | 1971 | 1995 | 2008 | ||
BC 1 | Agricultural lands | 30 | 28 | 30 | 31 | 28 |
Bare and paved surface | 2 | 6 | 3 | 3 | 2 | |
Herbaceous grasslands | 31 | 16 | 16 | 19 | 23 | |
Open water | 0 | 4 | 1 | 1 | 1 | |
Pasture | 24 | 27 | 23 | 22 | 20 | |
Shrubs and brush rangelands | 15 | 20 | 26 | 25 | 27 | |
DC 3 | Agricultural lands | 0 | 15 | 8 | 11 | 23 |
Bare and paved surface | 10 | 11 | 20 | 11 | 6 | |
Deciduous forests | 5 | 7 | 6 | 21 | 8 | |
Herbaceous grasslands | 26 | 28 | 31 | 10 | 28 | |
Open water | 0 | 2 | 4 | 10 | 0 | |
Pasture | 38 | 14 | 32 | 33 | 12 | |
Shrubs and brush rangelands | 21 | 24 | 0 | 5 | 24 |