Article 03, paisea 021. Structural soil | Albert Bestard
An approach to the problem. Urban soils just as they are.
Urban soils are the result of transformations that have taken place throughout history. They are not fertile, deep, spongy nor well-drained. In most situations, they will have been compacted to make way for constructions, installations or paving.
Cities are dynamic places which can accumulate excavations, fillings, compacting, more excavations, the digging of ditches, etc. Often these actions are only partial, so a subsoil can have varying properties across the same plot of land. When we work with consolidated urban soils, they usually contain a mosaic of different materials, from top to bottom and side to side.
The most seriously affected agricultural qualities are aeration and water circulation. The organic layer completely disappears and fertility plummets, so in fact we should not even refer to them as soils at all, at least in the agricultural sense of the word.
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