Land Cover and Soil Properties Influence on Forage Quantity in a Semiarid Region in East Africa

Table 7

Influence of soil properties on forage quantity in the land cover units.

Land cover unit	Grasslands		Thickets and shrublands		Woodlands
Soil property	Estimate	value	Estimate	value	Estimate	value
Intercept	29.532	0.001	13.836	0.001	−0.039	0.977
pH	−1.261	0.001	−0.618	0.001	0.254	0.013
Nitrogen content (%)	10.915	0.005	42.896	0.001	−15.313	0.001
SOM (%)	−0.724	0.003	−0.806	0.001	0.926	0.001
Phosphorus (ppm)	−0.019	0.001	3.771	0.001	−0.014	0.661
Potassium (cmol/Kg)	−3.14	0.001	−10.46	0.001	1.146	0.332
Ca	−0.008	0.644	−0.16	0.001	0.048	0.001
Mg	0.514	0.001	1.402	0.001	0.001	0.001
Na	0.905	0.023	0.225	0.086	−0.682	0.306
Sand (%)	−0.173	0.001	−0.026	0.512	0.031	0.006
Clay (%)	−0.225	0.001	−0.184	0.001	−0.016	0.408
Silt (%)	0.01	0.991	0.074	0.045	−0.036	0.019
N : P ratio	0.08		0.004		0.04
R^2	0.899		0.844		0.617