Land value number
The soil value number ( BWZ ), also soil climate number ( BKZ ), is a comparative value in Germany for evaluating the productivity of agricultural soils. It is therefore also an economic indicator. It is determined with the data of the soil estimate and ranges from 0 (very low) to approx. 100 (very high). The values are based on a standard municipality with the value 100. Theoretically, values over 100 are also possible via climate surcharges. Internationally, the land value is ( English soil fertility ) over the soil classification system of the World Reference Base for soil resources identified in the United States according to the data of the USDA Soil Taxonomy .
Range of values
The value ranges of the different soil types are:
|Soil type||Range of values|
|heavy to clayey loam||31-50|
|Loam, partly with loess layer||51-70|
|Loam with loess toppings||71-90|
|loess||91 and more|
The following colors are used in relation to certain value ranges and classifications:
|very low||until 18||brown|
|very high||75 and more||green|
The Haberhauffe court in the Eickendorf district in the Magdeburger Börde was established as a Reichsrichtbetrieb at the time . In 1993 the courtyard building was converted into a museum. In the realm soil estimation according to the Soil Estimation Act in 1934, the soil value number / reference number (LVZ) 100 was determined in the "Reichsspitzenbetrieb". It became the basis of comparison for the tax assessment of all farms in Germany. Since this company was no longer available for comparisons within West Germany after the war, a company in Machtsum near Harsum in the Hildesheimer Börde was declared a federal straightening company. In later measurements, an even higher value with the LVZ of 102.8 was found in Mölme , which is about 20 km east of Hildesheim and is part of the municipality of Söhlde . It is the highest value ever measured in Germany.
The number of arable land is determined from the land value number, taking into account individual location factors (e.g. climate, forest edge location), provided these differ from those of the Reichsrichtbetrieb .
- Rudolf Hüwe, Walter Roubitschek: Agricultural land use . In: Hans-Dieter Haas (Ed.): National Atlas Federal Republic of Germany . tape 8 . Companies and Markets. Elsevier / Spektrum Akademischer Verlag, Munich, Heidelberg 2004, ISBN 978-3-8274-0959-1 , pp. 29 ( Online [PDF; 5.4 MB ; accessed on April 22, 2020]).
- Matthias Schrödter, Manfred Altermann: 100 soil - best rated soil in Germany. Status: August 6, 2019. In: bmel.de. Federal Ministry of Food and Agriculture , accessed on April 22, 2020 .
- Application documents for the spatial planning procedure for the new construction of a mono-landfill (PDF; 55.5 MB) Landkreis Wesermarsch , November 5, 2014, p. 70, p. 79
- Values of the soil estimate - soil values (PDF) Geological Service North Rhine-Westphalia
- beading floor: Eick Hof is known nationwide . volksstimme.de, July 29, 2017
- Community Eickendorff ( Memento from December 1, 2006 in the Internet Archive ), district Schönebeck
- Haberhauffe, Elisabeth Else Mathilde . uni-magdeburg.de ( University of Magdeburg )
- Christian Hirtreiter: Gäuboden - heartland of arable farming . Strasskirchen .de
- Leaflet on the structure of the soil assessment (02/2009) . (PDF; 336 kB) Bavarian State Tax Office , p. 5