Quantify soil erosion and sediment export in response to land use/cover change in the Suha watershed, northwestern highlands of Ethiopia: implications for watershed management

Environmental Systems Research

Table 8 Soil erosion severity classes and area coverage in the Suha watershed (1985–2019)

Soil loss rate (t ha⁻¹ yr⁻¹)	Severity class	1985		1999		2009		2019
Soil loss rate (t ha⁻¹ yr⁻¹)	Severity class	Area (ha)	(%)	Area (ha)	(%)	Area (ha)	(%)	Area (ha)	(%)
0–5	Very slight	42,957	53.5	32,624	40.6	16,223.9	20.2	22,252	27.7
5–15	Slight	13,826	17.2	14,930	18.6	24,881.6	31.0	16,788	20.9
15–30	Moderate	10,852	13.5	13,350	16.6	12,211.7	15.2	15,643	19.5
30–50	Severe	6126	7.6	8020	10.0	8572.9	10.7	9138	11.4
> 50	Very severe	6582	8.2	11,419	14.2	18,452.9	23.0	16,522	20.6
	Total	80,343	100	80,343	100	80,343	100	80,343	100