Articles | Volume 12, issue 8
https://doi.org/10.5194/bg-12-2327-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-12-2327-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Predicting the denitrification capacity of sandy aquifers from in situ measurements using push–pull 15N tracer tests
W. Eschenbach
CORRESPONDING AUTHOR
Johann Heinrich von Thünen-Institut, Federal Research Institute for Rural Areas, Forestry and Fisheries, Institute of Climate-Smart Agriculture, Bundesallee 50, 38116 Braunschweig, Germany
Johann Heinrich von Thünen-Institut, Federal Research Institute for Rural Areas, Forestry and Fisheries, Institute of Climate-Smart Agriculture, Bundesallee 50, 38116 Braunschweig, Germany
W. Walther
formerly at: Institute for Groundwater Management, Dresden University of Technology, 01062 Dresden, Germany
retired
Related authors
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Balázs Grosz, Reinhard Well, Rene Dechow, Jan Reent Köster, Mohammad Ibrahim Khalil, Simone Merl, Andreas Rode, Bianca Ziehmer, Amanda Matson, and Hongxing He
Biogeosciences, 18, 5681–5697, https://doi.org/10.5194/bg-18-5681-2021, https://doi.org/10.5194/bg-18-5681-2021, 2021
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To assure quality predictions biogeochemical models must be current. We use data measured using novel incubation methods to test the denitrification sub-modules of three models. We aim to identify limitations in the denitrification modeling to inform next steps for development. Several areas are identified, most urgently improved denitrification control parameters and further testing with high-temporal-resolution datasets. Addressing these would significantly improve denitrification modeling.
Lena Rohe, Traute-Heidi Anderson, Heinz Flessa, Anette Goeske, Dominika Lewicka-Szczebak, Nicole Wrage-Mönnig, and Reinhard Well
Biogeosciences, 18, 4629–4650, https://doi.org/10.5194/bg-18-4629-2021, https://doi.org/10.5194/bg-18-4629-2021, 2021
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This is the first experimental setup combining a complex set of methods (microbial inhibitors and isotopic approaches) to differentiate between N2O produced by fungi or bacteria during denitrification in three soils. Quantifying the fungal fraction with inhibitors was not successful due to large amounts of uninhibited N2O production. All successful methods suggested a small or missing fungal contribution. Artefacts occurring with microbial inhibition to determine N2O fluxes are discussed.
Lena Rohe, Bernd Apelt, Hans-Jörg Vogel, Reinhard Well, Gi-Mick Wu, and Steffen Schlüter
Biogeosciences, 18, 1185–1201, https://doi.org/10.5194/bg-18-1185-2021, https://doi.org/10.5194/bg-18-1185-2021, 2021
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Total denitrification, i.e. N2O and (N2O + N2) fluxes, of repacked soil cores were analysed for different combinations of soils and water contents. Prediction accuracy of (N2O + N2) fluxes was highest with combined proxies for oxygen demand (CO2 flux) and oxygen supply (anaerobic soil volume fraction). Knowledge of denitrification completeness (product ratio) improved N2O predictions. Substitutions with cheaper proxies (soil organic matter, empirical diffusivity) reduced prediction accuracy.
Dominika Lewicka-Szczebak, Maciej Piotr Lewicki, and Reinhard Well
Biogeosciences, 17, 5513–5537, https://doi.org/10.5194/bg-17-5513-2020, https://doi.org/10.5194/bg-17-5513-2020, 2020
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We present the first validation of N2O isotopic approaches for estimating N2O source pathways and N2O reduction. These approaches are widely used for tracing soil nitrogen cycling, but the results of these estimations are very uncertain. Here we report the results from parallel treatments allowing for precise validation of these approaches, and we propose the best strategies for results interpretation, including the new idea of an isotope model integrating three isotopic signatures of N2O.
Dominika Lewicka-Szczebak and Reinhard Well
SOIL, 6, 145–152, https://doi.org/10.5194/soil-6-145-2020, https://doi.org/10.5194/soil-6-145-2020, 2020
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This study aimed at comparison of various experimental strategies for incubating soil samples to determine the N2 flux. Such experiments require addition of isotope tracer, i.e. nitrogen fertilizer enriched in heavy nitrogen isotopes (15N). Here we compared the impact of soil homogenization and mixing with the tracer and tracer injection to the intact soil cores. The results are well comparable: both techniques would provide similar conclusions on the magnitude of N2 flux.
Pauline Sophie Rummel, Birgit Pfeiffer, Johanna Pausch, Reinhard Well, Dominik Schneider, and Klaus Dittert
Biogeosciences, 17, 1181–1198, https://doi.org/10.5194/bg-17-1181-2020, https://doi.org/10.5194/bg-17-1181-2020, 2020
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Chemical composition of plant litter controls C availability for biological N transformation processes in soil. In this study, we showed that easily degradable maize shoots stimulated microbial respiration and mineralization leading to high N2O formation in litter-associated hot spots. A higher share of slowly degradable C compounds and lower concentrations of water-soluble N restricted N2O emissions from maize roots. Bacterial community structure reflected degradability of maize litter.
Reinhard Well, Martin Maier, Dominika Lewicka-Szczebak, Jan-Reent Köster, and Nicolas Ruoss
Biogeosciences, 16, 2233–2246, https://doi.org/10.5194/bg-16-2233-2019, https://doi.org/10.5194/bg-16-2233-2019, 2019
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Denitrification is a key process in the soil nitrogen cycle but poorly investigated due to methodical limitations. The 15N gas flux method is currently the only approach allowing field measurement of denitrification but was subject to bias due to unaccounted fluxes of 15N-labelled gaseous denitrification products to the subsoil. We used field flux experiments and diffusion–reaction modelling to estimate this source of error and developed an approach to correct denitrification rates.
Laura Maritza Cardenas, Roland Bol, Dominika Lewicka-Szczebak, Andrew Stuart Gregory, Graham Peter Matthews, William Richard Whalley, Thomas Henry Misselbrook, David Scholefield, and Reinhard Well
Biogeosciences, 14, 4691–4710, https://doi.org/10.5194/bg-14-4691-2017, https://doi.org/10.5194/bg-14-4691-2017, 2017
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A laboratory incubation was carried out at different soil moisture levels to measure emissions of nitrogen gases and the isotopomers (position of 15N) of nitrous oxide. Flux variability was larger in drier conditions, probably due to nutrient distribution heterogeneity created from soil cracks and consequently nutrient hot spots. Denitrification was the main source of fluxes at higher moisture, but nitrification could have occurred under drier conditions (although moisture was still high).
Dominika Lewicka-Szczebak, Jürgen Augustin, Anette Giesemann, and Reinhard Well
Biogeosciences, 14, 711–732, https://doi.org/10.5194/bg-14-711-2017, https://doi.org/10.5194/bg-14-711-2017, 2017
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The consumption of the greenhouse gas nitrous oxide (N2O) by its reduction to dinitrogen via microbial denitrification in soil is poorly quantified. This precludes improvements in nitrogen (N) efficiency in agricultural ecosystems and mitigation of N losses to the environment including N2O fluxes. We present a laboratory evaluation for the determination of N2O reduction based on stable isotope values of soil-emitted N2O as a new approach to determine N2O reduction in the field studies.
Dominika Lewicka-Szczebak, Jens Dyckmans, Jan Kaiser, Alina Marca, Jürgen Augustin, and Reinhard Well
Biogeosciences, 13, 1129–1144, https://doi.org/10.5194/bg-13-1129-2016, https://doi.org/10.5194/bg-13-1129-2016, 2016
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Oxygen isotopic signatures of N2O are formed in complex multistep enzymatic reactions and depend on isotopic fractionation during enzymatic reduction of nitrate to N2O and on the oxygen isotope exchange with soil water. We propose a new method for quantification of oxygen isotope exchange, with simultaneous determination of oxygen isotopic signatures, to decipher the mechanism of oxygen isotopic fractionation. We indicate the differences between fractionation mechanisms by various pathways.
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Cited articles
Addy, K., Kellogg, D. Q., Gold, A. J., Groffman, P. M., Ferendo, G., and Sawyer, C.: In situ push-pull method to determine ground water denitrification in riparian zones, J. Environ. Qual., 31, 1017–1024, 2002.
Addy, K., Gold, A., Nowicki, B., McKenna, J., Stolt, M., and Groffman, P.: Denitrification capacity in a subterranean estuary below a Rhode Island fringing salt marsh, Estuaries, 28, 896–908, 2005.
Böttcher, J., Strebel, O., and Duijnisveld, W. H. M.: Vertikale Stoffkonzentrationsprofile im Grundwasser eines Lockergesteins-Aquifers und deren Interpretation (Beispiel Fuhrberger Feld), Z. dt. Geol. Ges., 136, 543–552, 1985.
Böttcher, J., Strebel, O., and Duijnisveld, W. H. M.: Kinetik und Modellierung gekoppelter Stoffumsetzungen im Grundwasser eines Lockergesteins-Aquifers., Geol. Jahrb. Reihe C, 51, 3–40, 1989.
Böttcher, J., Strebel, O., and Duijnisveld, W. H. M.: Reply (to a comment of Scott F. Korom), Water Resour. Res., 27, 3275–3278, 1991.
Böttcher, J., Strebel, O., and Kölle, W.: Redox conditions and microbial sulfur reactions in the Fuhrberger Feld sandy aquifer., Progress in Hydrogeochemistry, 219–226, 1992.
Burgin, A. J. and Hamilton, S. K.: Have we overemphasized the role of denitrification in aquatic ecosystems? A review of nitrate removal pathways, Front. Ecol. Environ., 5, 89–96, https://doi.org/10.1890/1540-9295(2007)5[89:hwotro]2.0.co;2, 2007.
Eschenbach, W. and Well, R.: Online measurement of denitrification rates in aquifer samples by an approach coupling an automated sampling and calibration unit to a membrane inlet mass spectrometry system, Rapid Commun. Mass Spectrom., 25, 1993–2006, https://doi.org/10.1002/rcm.5066, 2011.
Eschenbach, W. and Well, R.: Predicting the denitrification capacity of sandy aquifers from shorter-term incubation experiments and sediment properties, Biogeosciences, 10, 1013–1035, https://doi.org/10.5194/bg-10-1013-2013, 2013.
Frind, E. O., Duynisveld, W. H. M., Strebel, O., and Böttcher, J.: Modeling of multicomponent transport with microbial transformation in groundwater – The Fuhrberg case, Water Resour. Res., 26, 1707–1719, 1990.
Green, C. T., Puckett, L. J., Bohlke, J. K., Bekins, B. A., Phillips, S. P., Kauffman, L. J., Denver, J. M., and Johnson, H. M.: Limited occurrence of denitrification in four shallow aquifers in agricultural areas of the United States, J. Environ. Qual., 37, 994–1009, https://doi.org/10.2134/jeq2006.0419, 2008.
Green, C. T., Bohlke, J. K., Bekins, B. A., and Phillips, S. P.: Mixing effects on apparent reaction rates and isotope fractionation during denitrification in a heterogeneous aquifer, Water Resour. Res., 46, W08525, https://doi.org/10.1029/2009wr008903, 2010.
Griebler, C. and Lueders, T.: Microbial biodiversity in groundwater ecosystems, Freshw. Biol., 54, 649–677, https://doi.org/10.1111/j.1365-2427.2008.02013.x, 2009.
Groffman, P. M., Altabet, M. A., Bohlke, J. K., Butterbach-Bahl, K., David, M. B., Firestone, M. K., Giblin, A. E., Kana, T. M., Nielsen, L. P., and Voytek, M. A.: Methods for measuring denitrification: Diverse approaches to a difficult problem, Ecol. Appl., 16, 2091–2122, 2006.
Harris, S. H., Istok, J. D., and Suflita, J. M.: Changes in organic matter biodegradability influencing sulfate reduction in an aquifer contaminated by landfill leachate, Microb. Ecol., 51, 535–542, 10.1007/s00248-006-9043-y, 2006.
Hiscock, K. M., Lloyd, J. W., and Lerner, D. N.: Review of natural and artificial denitrification of groundwater, Water Res., 25, 1099–1111, 1991.
Howar, M.: Geologische 3D-Untergrundmodellierung im Bereich Großenkneten/Ahlhorn., unpubl. Expertise: INSIGHT. Geologische Softwaresysteme GmbH, Köln, Germany, 11 S., 2005.
Istok, J. D., Humphrey, M. D., Schroth, M. H., Hyman, M. R., and Oreilly, K. T.: Single-well, "push-pull" test for in situ determination of microbial activities, Ground Water, 35, 619–631, 1997.
Istok, J. D., Senko, J. M., Krumholz, L. R., Watson, D., Bogle, M. A., Peacock, A., Chang, Y. J., and White, D. C.: In situ bioreduction of technetium and uranium in a nitrate-contaminated aquifer, Environ. Sci. Technol., 38, 468–475, https://doi.org/10.1021/es034639p, 2004.
Kellogg, D. Q., Gold, A. J., Groffman, P. M., Addy, K., Stolt, M. H., and Blazejewski, G.: In situ ground water denitrification in stratified, permeable soils underlying riparian wetlands, J. Environ. Qual., 34, 524–533, 2005.
Kim, Y., Istok, J. D., and Semprini, L.: Push-pull tests for assessing in situ aerobic cometabolism, Ground Water, 42, 329–337, https://doi.org/10.1111/j.1745-6584.2004.tb02681.x, 2004.
Kim, Y., Kim, J. H., Son, B. H., and Oa, S. W.: A single well push-pull test method for in situ determination of denitrification rates in a nitrate-contaminated groundwater aquifer, Water Sci. Technol., 52, 77–86, 2005.
Kneeshaw, T. A., McGuire, J. T., Smith, E. W., and Cozzarelli, I. M.: Evaluation of sulfate reduction at experimentally induced mixing interfaces using small-scale push-pull tests in an aquifer-wetland system, Appl. Geochem., 22, 2618–2629, https://doi.org/10.1016/j.apgeochem.2007.06.006, 2007.
Kölbelboelke, J., Anders, E. M., and Nehrkorn, A.: Microbial communities in the saturated groundwater environment .2. Diversity of bacterial communities in a Pleistocene sand aquifer and their invitro activeties, Microb. Ecol., 16, 31–48, https://doi.org/10.1007/bf02097403, 1988.
Kölle, W., Strebel, O., and Böttcher, J.: Formation of sulfate by microbial denitrification in a reducing aquifer, Water Supply, 3, 35–40, 1985.
Kollmann, W.: Die Bestimmung des durchflußwirksamen Porenvolumens von Sedimenten und seine Bedeutung für den Grundwasserschutz, Mitt. österr. geol. Ges., 79, 14, 1986.
Konrad, C.: Methoden zur Bestimmung des Umsatzes von Stickstoff für drei pleistozäne Grundwasserleiter Norddeutschlands, PhD Thesis, Univ. of Tech. Dresden, Dresden, Germany, 161 pp., 2007.
Korom, S. F.: Natural denitrification in the saturated zone – a review, Water Resour. Res., 28, 1657–1668, 1992.
Korom, S. F., Schlag, A. J., Schuh, W. M., and Schlag, A. K.: In situ mesocosms: denitrification in the Elk Valley aquifer, Ground Water Monit. R., 25, 79–89, 2005.
Korom, S. F., Schuh, W. M., Tesfay, T., and Spencer, E. J.: Aquifer denitrification and in situ mesocosms: modeling electron donor contributions and measuring rates, J. Hydrol., 432–433, 112–126, https://doi.org/10.1016/j.jhydrol.2012.02.023, 2012.
Law, G. T. W., Geissler, A., Boothman, C., Burke, I. T., Livens, F. R., Lloyd, J. R., and Morris, K.: Role of Nitrate in Conditioning Aquifer Sediments for Technetium Bioreduction, Environ. Sci. Technol., 44, 150–155, https://doi.org/10.1021/es9010866, 2010.
McGuire, J. T., Long, D. T., Klug, M. J., Haack, S. K., and Hyndman, D. W.: Evaluating behavior of oxygen, nitrate, and sulfate during recharge and quantifying reduction rates in a contaminated aquifer, Environ. Sci. Technol., 36, 2693–2700, https://doi.org/10.1021/es015615q, 2002.
McMahon, P. B., Bohlke, J. K., and Christenson, S. C.: Geochemistry, radiocarbon ages, and paleorecharge conditions along a transect in the Central High Plains aquifer, Southwestern Kansas, USA, Appl. Geochem., 19, 1655–1686, https://doi.org/10.1016/j.apgeochem.2004.05.003, 2004.
Rivett, M. O., Buss, S. R., Morgan, P., Smith, J. W. N., and Bemment, C. D.: Nitrate attenuation in groundwater: A review of biogeochemical controlling processes, Water Res., 42, 4215–4232, https://doi.org/10.1016/j.watres.2008.07.020, 2008.
Sánchez-Pérez, J. M., Bouey, C., Sauvage, S., Teissier, S., Antiguedad, I., and Vervier, P.: A standardised method for measuring in situ denitrification in shallow aquifers: numerical validation and measurements in riparian wetlands, Hydrol. Earth Syst. Sci., 7, 87–96, https://doi.org/10.5194/hess-7-87-2003, 2003.
Santoro, A. E., Boehm, A. B., and Francis, C. A.: Denitrifier community composition along a nitrate and salinity gradient in a coastal aquifer, Appl. Environ. Microbiol., 72, 2102–2109, https://doi.org/10.1128/aem.72.3.2102-2109.2006, 2006.
Schroth, M. H., Kleikemper, J., Bolliger, C., Bernasconi, S. M., and Zeyer, J.: In situ assessment of microbial sulfate reduction in a petroleum-contaminated aquifer using push-pull tests and stable sulfur isotope analyses, J. Contam. Hydrol., 51, 179–195, 2001.
Schuchert, A.: Zielflächenidentifikation für Grundwasserschutzmaßnahmen. Eine GIS-Datenanalyse im Wasserschutzgebiet Großenkneten, Landkreis Oldenburg, Diploma thesis, Institute for Geography, University of Bremen, Germany, 2007.
Seitzinger, S., Harrison, J. A., Bohlke, J. K., Bouwman, A. F., Lowrance, R., Peterson, B., Tobias, C., and Van Drecht, G.: Denitrification across landscapes and waterscapes: A synthesis, Ecol. Appl., 16, 2064–2090, 2006.
Senko, J. M., Istok, J. D., Suflita, J. M., and Krumholz, L. R.: In-situ evidence for uranium immobilization and remobilization, Environ. Sci. Technol., 36, 1491–1496, https://doi.org/10.1021/es011240x, 2002.
Strebel, O., Böttcher, J., and Duijnisveld, W. H. M.: Identifizierung und Quantifizierung von Stoffumsetzungen in einem Sand-Aquifer (Beispiel Fuhrberger Feld), DVGW Schriftenreihe Wasser, 73, 55–73, 1992.
Tesoriero, A. J. and Puckett, L. J.: O2 reduction and denitrification rates in shallow aquifers, Water Resour. Res., 47, W12522, https://doi.org/10.1029/2011wr010471, 2011.
Trudell, M. R., Gillham, R. W., and Cherry, J. A.: An insitu study of the occurence and rate of denitrification in a shallow unconfined sand aquifer, J. Hydrol., 83, 251–268, 1986.
van Berk, W., Kübeck, C., Steding, T., van Straaten, L., and Wilde, S.: Vorstudie zur Hydrogeologie im Wassergewinnungsgebiet Großenkneten., unpubl. Expertise: Leonardo Van Straaten Geo-Infometric GmbH, Hildesheim, Germany, 55 pp., 2005.
Vitousek, P. M., Aber, J. D., Howarth, R. W., Likens, G. E., Matson, P. A., Schindler, D. W., Schlesinger, W. H., and Tilman, G. D.: Human alteration of the global nitrogen cycle: Sources and consequences, Ecol. Appl., 7, 737–750, 1997.
von der Heide, C., Bottcher, J., Deurer, M., Weymann, D., Well, R., and Duijnisveld, W. H. M.: Spatial variability of N2O concentrations and of denitrification-related factors in the surficial groundwater of a catchment in Northern Germany, J. Hydrol., 360, 230–241, https://doi.org/10.1016/j.jhydrol.2008.07.034, 2008.
Wall, L. G., Tank, J. L., Royer, T. V., and Bernot, M. J.: Spatial and temporal variability in sediment denitrification within an agriculturally influenced reservoir, Biogeochemistry, 76, 85–111, https://doi.org/10.1007/s10533-005-2199-6, 2005.
Weiss, R. F.: Solubility of nitrogen, oxygen and argon in water and seawater, Deep-Sea Research, 17, 721–735, 1970.
Weiss, R. F. and Price, B. A.: Nitrous-oxide solubility in water and seawater, Mar. Chem., 8, 347–359, 1980.
Well, R. and Myrold, D. D.: Laboratory evaluation of a new method for in situ measurement of denitrification in water-saturated soils, Soil Biol. Biochem., 31, 1109–1119, 1999.
Well, R. and Myrold, D. D.: A proposed method for measuring subsoil denitrification in situ, Soil Sci. Soc. Am. J., 66, 507–518, 2002.
Well, R., Becker, K. W., Langel, R., Meyer, B., and Reineking, A.: Continuous flow equilibration for mass spectrometric analysis of dinitrogen emissions, Soil Sci. Soc. Am. J., 62, 906–910, 1998.
Well, R., Augustin, J., Meyer, K., and Myrold, D. D.: Comparison of field and laboratory measurement of denitrification and N2O production in the saturated zone of hydromorphic soils, Soil Biol. Biochem., 35, 783–799, https://doi.org/10.1016/s0038-0717(03)00106-8, 2003.
Well, R., Höper, H., Mehranfar, O., and Meyer, K.: Denitrification in the saturated zone of hydromorphic soils-laboratory measurement, regulating factors and stochastic modeling, Soil Biol. Biochem., 37, 1822–1836, https://doi.org/10.1016/j.soilbio.2005.02.014, 2005.
Well, R., Eschenbach, W., Flessa, H., von der Heide, C., and Weymann, D.: Are dual isotope and isotopomer ratios of N2O useful indicators for N2O turnover during denitrification in nitrate-contaminated aquifers?, Geochim. Cosmochim. Acta, 90, 265–282, https://doi.org/10.1016/j.gca.2012.04.045, 2012.
Wessolek, G., Renger, M., Strebel, O., and Sponagel, H.: Einfluß von Boden und Grundwasserflurabstand auf die jährliche Grundwasserneubildung unter Acker, Grünland und Nadelwald., Z. f. Kulturtechnik und Flurbereinigung, 26, 130–137, 1985.
Weymann, D., Well, R., Flessa, H., von der Heide, C., Deurer, M., Meyer, K., Konrad, C., and Walther, W.: Groundwater N2O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N2O accumulation, Biogeosciences, 5, 1215–1226, https://doi.org/10.5194/bg-5-1215-2008, 2008.
Weymann, D., Geistlinger, H., Well, R., von der Heide, C., and Flessa, H.: Kinetics of N2O production and reduction in a nitrate-contaminated aquifer inferred from laboratory incubation experiments, Biogeosciences, 7, 1953–1972, https://doi.org/10.5194/bg-7-1953-2010, 2010.
Wirth, K.: Hydrogeologisches Gutachten zur Bemessung und Gliederung der Trinkwasserschutzgebiete für die Fassungen Hagel, Sage und Baumweg, Wasserwerk Großenkneten (OOWV). Beratungsbüro für Hydrogeologie (Hrsg.)., Göttingen, Germany, 18 S., 1990.
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