Gully head incision period n 1957 1957 1957 1972 1972 1972 2005 2005 2005
Forest Grazing land Cropland Forest Grazing land Cropland Forest Grazing land Cropland
Rift margin Rift margin Rift margin Rift margin Rift margin Rift margin Rift margin Rift margin Rift margin Rift margin Rift margin
Before 1957 17 16 (94) 1 (6) 0 (0) 11 (65) 6 (35) 0 (0) 0 (0) 12 (71) 5 (29)
1957–1972 6 2 (33) 4 (67) 0 (0) 0 (0) 6 (100) 0 (0) 0 (0) 2 (33) 4 (67)
1972–2005 36 6 (17) 6 (17) 24 (67) 1 (3) 6 (17) 29 (81) 0 (0) 1 (3) 35 (97)
Valley bottom Valley bottom Valley bottom Valley bottom Valley bottom Valley bottom Valley bottom Valley bottom Valley bottom Valley bottom Valley bottom
Before 1957 13 8 (62) 1 (8) 4 (31) 7 (54) 2 (15) 4 (31) 7 (54) 0 (0) 6 (46)
1957–1972 14 1 (7) 6 (43) 7 (50) 0 (0) 10 (71) 4 (29) 0 (0) 3 (21) 11 (79)
1972–2005 10 0 (0) 3 (30) 7 (70) 0 (0) 3 (30) 7 (70) 0 (0) 0 (0) 10 (100)