Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Cultural Landscape of the Serra de Tramuntana' has mentioned 'Soil erosion' in the following places:
Occurrence Sentence Text Source
farmed landscape which combines an interconnected and highly specialised system of waterworks for collecting and storing water, featuring qanats, that are underground channels to harvest and transport water, canals, ditches, storage basins, with a system of terraces supported by dry-stone walls so as to make possible the cultivation of vegetables as well as fruit and olive trees in the terraced plots and including a sophisticated drainage system to avoid soil erosion.