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Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 1 Land use distributions of the three scenarios across the slopes

From: Impact of land-use change on catchment water balance: a case study in the central region of South Africa

Slope range (%) Land use Baseline PAST > 8% to FRSE PAST > 3% to FRSE
RLU2000 FRSE1 FRSE2
Area (ha) % Area (m2) % Area (m2) %
0–3 Agriculture 5823.1 11.11 58,231,422.2 11.11 58,231,422.2 11.11
Forest 165.8 0.32 1,657,933.9 0.32 1,657,933.9 0.32
Pasture 42,008.7 80.16 420,087,355.8 80.16 420,087,355.8 80.16
Rangeland 2295.5 4.38 22,954,994.6 4.38 22,954,994.6 4.38
Urban 413.8 0.79 4,137,642.2 0.79 4,137,642.2 0.79
Water 697.1 1.33 6,971,039.5 1.33 6,971,039.5 1.33
Wetland 1001.8 1.91 10,018,378.6 1.91 10,018,378.6 1.91
Total   52,405.8 100.00 524,058,766.8 100.00 524,058,766.8 100.00
3–8 Agriculture 1358.2 4.27 13,581,694.3 4.27 13,581,694.3 4.27
Forest 42.4 0.13 424,412.5 0.13 282,779,720.8 88.91
Pasture 28,235.5 88.78 282,355,308.3 88.78 0.0 0.00
Rangeland 1358.8 4.27 13,588,292.2 4.27 13,588,292.2 4.27
Urban 142.9 0.45 1,428,801.1 0.45 1,428,801.1 0.45
Water 340.4 1.07 3,404,301.5 1.07 3,404,301.5 1.07
Wetland 326.8 1.03 3,267,587.0 1.03 3,267,587.0 1.03
Total   31,805.0 100.00 318,050,396.9 100.00 318,050,396.9 100.00
> 8 Agriculture 46.7 0.56 467,248.7 0.56 467,248.7 0.56
Forest 11.8 0.14 76,423,017.3 91.56 76,423,017.3 91.56
Pasture 7630.5 91.42 0.0 0.00 0.0 0.00
Rangeland 524.9 6.29 5,248,974.9 6.29 5,248,974.9 6.29
Urban 49.2 0.59 492,500.5 0.59 492,500.5 0.59
Water 14.7 0.18 146,910.5 0.18 146,910.5 0.18
Wetland 68.6 0.82 685,933.2 0.82 685,933.2 0.82
Total   8346.4 100.00 83,464,585.1 100.00 83,464,585.1 100.00
Total catchment Agriculture 7228.0 7.81 72,280,365.2 7.81 72,280,365.2 7.81
Forest 220.0 0.24 78,505,363.7 8.48 360,860,672.0 38.99
Pasture 77,874.7 84.14 702,442,664.1 75.89 420,087,355.8 45.39
Rangeland 4179.2 4.51 41,792,261.7 4.51 41,792,261.7 4.51
Urban 605.9 0.65 6,058,943.8 0.65 6,058,943.8 0.65
Water 1052.2 1.14 10,522,251.5 1.14 10,522,251.5 1.14
Wetland 1397.2 1.51 13,971,898.8 1.51 13,971,898.8 1.51
Catchment Total   92,557.2 100.00 925,573,748.8 100.00 925,573,748.8 100.00