Designation (also field cleansing, corridor regulation, corridor regulation, assignment) for all measures, by agricultural division, which is usually split up corridors or land by merging for management to make it more appropriate and cost-effective. The winegrowing took place in Germany in the second half of the 20th century, a comprehensive state-controlled land consolidation program. From the early 1960s over half of the West German vineyard was redesigned. There have been many improvements through better access roads, better machinability and better ones water discharge, Many fragmented possessions have been merged, thereby reducing production costs.
However, the land consolidation carried out sometimes led to very large monocultures with negative side effects such as erosion or increased pest population, therefore, from the 1990s, actions were carried out environmentally conscious. The land consolidation in 1971, the approximately 30,000 individual layers reduced by mergers to less than 3,000. Bsonders large single layers with 100 hectares and more, this led in part to great inhomogeneity with large differences in terms soil type and climate (Microclimate). Due to the possible registration of former won to the now smallest geographical origin protected Unit called cadastral location there is a straightening.