Term for the reclamation of land not yet used for agriculture, usually the conversion of forest areas into arable land (imperfect clearing, in which the tree stumps or roots are not removed, is called "Schwenden"). The term Riede, which is used mainly in Austria for a single vineyard, is derived from Roden. The newly gained arable land is called clearing. In viticulture, this is understood to mean the uprooting of vines for various reasons. Traditionally, this is the removal of (too) old vines that produce too low a yield. Other reasons include a change of grape variety or when a vineyard has been extensively attacked or destroyed by vine diseases or pests. After grubbing up, a correspondingly long fallow period, i.e. a temporary suspension of use, is necessary. The loosening of the soil before a new vineyard is planted is called rigolen.