Abstract
Implemented on behalf of the Federal Ministry for Research and Technology (BMFT), a model is developed to trace the nutrient flow of nitrate in the soil and the groundwater on a supraregional scale. Research work is intended to indicate regionally differentiated hazardous potentials and thereby provide a basis for recommending comprehensive measures to protect groundwater in Germany. The adaption of the model to the hydrogeological and agricultural conditions of other states is possible in principle. This article focuses on the hydrogeological model parts. A high nitrate pollution of groundwater can be expected in all regions with intensive agricultural use of the topsoil. In particular, groundwater in solid rock areas is susceptible to nitrate pollution. There a rapid groundwater turnover and thus a short residence time for the groundwater in the aquifer is typical. Oxidizing aquifer conditions usually prevail in solid rock aquifers, preventing nitrate degradation. In many loose rock areas, in contrast, the groundwater has a low flow velocity and a long residence time in the aquifer. Because of a lack of free oxygen, a complete degradation of nitrate can occur, as long as iron sulfide compounds and/or organic carbon are available in the aquifer. A more detailed presentation of the whole research work is given in Wendland et al. (1993).
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References
Bach M (1993) Rasterkarten zur Stickstoffbilanz. In: Wendland F, Albert H, Bach M, Schmidt R (Eds), Atlas zum Nitratstrom in der Bundesrepublik Deutschland, Berlin: Springer-Verlag, pp. 65–82
Böttcher J, Strebel O, and Duynisveld WHM (1989) Kinetik und Modellierung gekoppelter Stoffumsetzungen im Grundwasser eines Lockergesteinaquifers. Geol Jb C51:3–40
Dörhöfer G, and Josopait V (1980) Eine Methode zur flächendifferenzierten Ermittlung der Grundwasserneubildungsrate. Geol Jb C27:45–65
Mull R (1987) Nitrat in Niedersachsen. Teil 2: Untersuchungsmethoden 101 S. (unveröffentlicht); Auftraggeber Umweltministerium des Landes Niedersachsen
Obermann P (1982) Hydrochemische/hydromechanische Untersuchungen zum Stoffgehalt von Grundwasser bei landwirtschaftlicher Nutzung. Bes Mitt Dtsch Gewässerkdl Jb 42:217 pp
Wendland, F (1992) Die Nitratbelastung in den Grundwasserlandschaften der “alten” Bundesländer. Bericht aus der Ökologischen Forsch 8:149 pp
Wendland F, Albert H, Bach M, Schmidt R (1993) Atlas zum Nitratstrom in der Bundesrepublik Deutschland, 96 S., Berlin: Springer-Verlag
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Wendland, F., Albert, H., Bach, M. et al. Potential nitrate pollution of groundwater in Germany: A supraregional differentiated model. Geo 24, 1–6 (1994). https://doi.org/10.1007/BF00768070
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DOI: https://doi.org/10.1007/BF00768070