Dig (geomorphology)

A digs is in the field of the Géomorphologie or the Paysage or the ecology of the landscape, the name sometimes given to a dry formation (it is not a question of a small valley or minor Lit of a river), in hollow, notching a slope perpendicular to a Vallée. In the very urbanized areas or densément cultivated, they often were the subject of rejection of domestic or agricultural Déchet S, even industrial. They are used sometimes of advance or for the descent as wood.

Origins

The origins are generally natural (erosion, place of flow of intermitente source), but they can be surcreusées by their use as Carrière or as Chemin for the cattle when the degree of slope allowed it.

Interest

The landscape designer, the town planner or the ecologist can find multiple interests to them:

Them hollow constitutes a network of places often sheltering généralemnet a Végétation particular and unusual with the area concerned.
They can collect the water of source S temporary.
Usually not cultivated and not urbanized because of the slopes, i.e. unscathed of eutrophication by manures or pollution by the pesticides (if they are also saved by the streaming coming from zones of intensive cultures), they have a potential role of protection of water and éventuellemnet of biological Corridor.
They contribute to the complexity and diversity of the landscapes and often offer atypical microphone-landscapes, with for example a flora of sub-mountainous mediums in plain.
They could play a part of shelter for species Gibier or part of the Biodiversité

See too

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