Ecological Processes

Table 7 Mean annual losses of total nitrogen (N), available phosphorus (P), and exchangeable potassium (K) in grazing land (GL) and cultivated land (CL) over the three study years (kg ha^–1 year^–1)

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

	Total N		Available P		Exchangeable K
Year	GL	CL	GL	CL	GL	CL
2007	38.91	55.15	1.00	0.98	1.54	1.74
2008	42.74	66.30	1.38	1.79	2.41	2.45
2009	44.55	52.16	1.27	1.60	2.72	2.49
p value	0.185	0.254	0.062	0.120	0.235	0.089

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

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