Semi-Desert Scrub

Semi-Desert Scrub A transitional for¬mation type situated between true 'desert and more thickly vegetated areas (e.g. be tween thorn forest and desert or between *savannah and desert). The vegetation is sparser than that of the thorn forest and succulents are more common, as a conse¬quence of the drier climate. Most of the plants are shallow-rooted, and so able to exploit before it evaporates any precipita¬tion that 'percolates into the surface layer of the soil.