Term (drain = to drain, dry out, drainage) for drainage and drainage, but also drainage system. In general, it refers to the natural properties of a soil that prevent water from accumulating in the soil under plants. However, it also includes measures using technical systems to counteract waterlogging on agricultural land.
Waterlogging can have different causes. Above all, the Bodentypsoil type plays a decisive role. Dense, heavy soils consisting of loam, clay and sand tend to become waterlogged or have poor drainage. Further and reinforcing influences are a high groundwater table and external water inflow.

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Thorsten Rahn
Restaurantleiter, Sommelier, Weindozent und Autor; Dresden