Ecological Processes

Table 5 Sediment associated mean annual losses of total N, available P, exchangeable K, and soil organic carbon (SOC) from the sediment leaving the runoff plots

From: The influence of grazing and cultivation on runoff, soil erosion, and soil nutrient export in the central highlands of Ethiopia

Year	Treatments	Total N (kg ha⁻¹ year^–1)	Av. P (kg ha⁻¹ year^–1)	Exch. K (kg ha⁻¹ year^–1)	SOC (t ha⁻¹ year^–1)
2007	GL	31.48^b	0.34^b	0.20^b	0.60^b
	CL	46.43^a	0.50^a	0.34^a	0.96^a
2008	GL	31.82^b	0.47^b	0.23^b	0.66^b
	CL	54.05^a	0.57^a	0.40^a	0.82^a
2009	GL	35.00^b	0.36^b	0.27^b	0.62^b
	CL	42.92^a	0.70^a	0.43^a	1.00^a
Average	GL	32.77^b	0.39^b	0.23^b	0.63^b
	CL	47.8^a	0.59^a	0.39^a	0.93^a

Columns with different letters are significantly different at 0.05 level, GL grazing land, CL cultivated land

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