Term for the reclamation of land not yet used for agricultural purposes, usually conversion of wooded areas into arable land (imperfect clearing, in which the tree stumps or roots are not removed, is called turning). The term reed for a single vineyard, which is used mainly in Austria, is derived from clearing. The newly gained arable land is called grubbing-up. In viticulture, this means the uprooting of vines for various reasons. Traditionally, this is the removal of (too) old vines that produce too little yield. Other causes are a change of grape variety or if a vineyard has been extensively attacked or destroyed by vine diseases or pests. After uprooting, a correspondingly long fallow period is required, i.e. a temporary suspension of use. The loosening of the soil before a new vineyard is planted is known as infiltration.