Figure 4From: Tree thinning as an option to increase herbaceous yield of an encroached semi-arid savanna in South AfricaResults of the regression analyses of the relations between the grass DM yield (subhabitats combined) and the Evapotranspiration Tree Equivalents (ETTE) ha-1 (shaded area shows the 95 % confidence limits): (a) season 1, (b) season 2, and (c) season 3.Back to article page