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Table 1 Categorical environmental factors collected in the field (Lower rank indicates better forest condition and higher values indicate bad forest condition; while soil depth, humus depth and erosion status were assessed into five ranks, grazing, cutting and fire incidence were ranked into four)

From: A combination of climate, tree diversity and local human disturbance determine the stability of dry Afromontane forests

Factors Ranks
1 2 3 4 5
Soil Depth (cm) > 100 75–100 50–75 25–50 0–25
Humus Depth (cm) > 10 5–10 2–5 0–2 0
Erosion Absent Low Moderate high Very high
Grazing Absent Low Medium High
Cutting Absent Low Medium High
Fire incidence Absent Low Medium High