soil

The Soil Resource Poverty Index is the percentage of each grid cell occupied by problem soils. Problem soils include the following categories: saline soils, soils with high sodium content, shallow soils, sandy soils, soils with very poor profile development, soils with severe soil structural and/or textural limitations, soils with severe acidity, infertility or Al-toxicity problems, wetland soils, acid sulphate

This map differentiates the kinds of major soil constraints that constitute ‘problem soils’ and contribute to soil resource poverty . Fifty four classes were differentiated on the basis of the occurrence of one or another of the 9 basic problem soils, either single or in combination with others.