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N2O Emissions from the Global Agricultural Nitrogen Cycle – Current State and Future Scenarios : Volume 9, Issue 10 (31/10/2012)

By Bodirsky, B. L.

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Book Id: WPLBN0003976103
Format Type: PDF Article :
File Size: Pages 29
Reproduction Date: 2015

Title: N2O Emissions from the Global Agricultural Nitrogen Cycle – Current State and Future Scenarios : Volume 9, Issue 10 (31/10/2012)  
Author: Bodirsky, B. L.
Volume: Vol. 9, Issue 10
Language: English
Subject: Science, Biogeosciences
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Dietrich, J. P., Scheiffele, L., Weindl, I., Bodirsky, B. L., Rolinski, S., Schmitz, C.,...Popp, A. (2012). N2O Emissions from the Global Agricultural Nitrogen Cycle – Current State and Future Scenarios : Volume 9, Issue 10 (31/10/2012). Retrieved from http://worldebooklibrary.com/


Description
Description: Potsdam Institute for Climate Impact Research (PIK), P.O. Box 60 12 03, 14412 Potsdam, Germany. Reactive nitrogen (Nr) is not only an important nutrient for plant growth, thereby safeguarding human alimentation, but it also heavily disturbs natural systems. To mitigate air, land, aquatic, and atmospheric pollution caused by the excessive availability of Nr, it is crucial to understand the long-term development of the global agricultural Nr cycle.

For our analysis, we combine a material flow model with a land-use optimization model. In a first step we estimate the state of the Nr cycle in 1995. In a second step we create four scenarios for the 21st century in line with the SRES storylines.

Our results indicate that in 1995 only half of the Nr applied to croplands was incorporated into plant biomass. Moreover, less than 10 per cent of all Nr in cropland plant biomass and grazed pasture was consumed by humans. In our scenarios a strong surge of the Nr cycle occurs in the first half of the 21st century, even in the environmentally oriented scenarios. Nitrous oxide (N2O) emissions rise from 3 Tg N2O-N in 1995 to 7–9 in 2045 and 5–12 Tg in 2095. Reinforced Nr pollution mitigation efforts are therefore required.


Summary
N2O emissions from the global agricultural nitrogen cycle – current state and future scenarios

Excerpt
Bodirsky, B.L., Rolinski, S., Biewald, A., Weindl, I., Popp, A., and Lotze-Campen, H.: Global food demand projections for the 21st century, in preparation, 2012.; Bondeau, A., Smith, P. C., Zaehle, S., Schaphoff, S., Lucht, W., Cramer, W., Gerten, D., Lotze-Campen, H., Müller, C., Reichstein, M., and Smith, B.: Modelling the role of agriculture for the 20th century global terrestrial carbon balance, Glob. Change Biol., 13, 679–706, 2007.; Bouwman, A. F., Van Drecht, G., and Van der Hoek, K. W.: Nitrogen surface balances in intensive agricultural production systems in different world regions for the period 1970–2030, Pedosphere, 15, 137–155, 2005.; Bouwman, A. F., Beusen, A., and Billen, G.: Human alteration of the global nitrogen and phosphorus soil balances for the period 1970–2050, Global Biogeochem. Cy., 23, 1–15 2009.; Bouwman, L., Goldewijk, K. K., Van Der Hoek, K. W., Beusen, A. H. W., Van Vuuren, D. P., Willems, J., Rufino, M. C., and Stehfest, E.: Exploring global changes in nitrogen and phosphorus cycles in agriculture induced by livestock production over the 1900–2050 period, Livestock and Global Change Special Feature, P. Natl. Acad. Sci., 1–6, 2011.; Boyer, E. W., Howarth, J., Dentener, F. J., Cleveland, C., Asner, G. P., Green, P., and Vörösmarty, C.: Current nitrogen inputs to world regions, in: Agriculture and the nitrogen cycle: assessing the impacts of fertilizer use on food production and the environment, 221–230, Island Press, Washington DC, 2004.; Brink, C., van Grinsven, H., Jacobsen, B. H., Rabl, A., Gren, I., Holland, M., Zbigniew, K., Hicks, K., Brouwer, R., Dickens, R., Willems, J., Termansen, M., Velthof, G., Alkemade, R., van Oorschot, M., and Webb, J.: Costs and benefits of nitrogen in the environment, in: The European Nitrogen Assessment: Sources, Effects and Policy Perspectives, Cambridge University Press, 2011.; Butterbach-Bahl, K., Nemitz, E., Zaehle, S., Billen, G., Boeckx, P., Erisman, J. W., Garnier, J., Upstill-Goddard, R., Kreuzer, M., Oenema, O., Reis, S., Schaap, M., Simpson, D., de Vries, W., Winiwarter, W., and Sutton, M. A.: Nitrogen as threat to European greenhouse balance, in: The European Nitrogen Assessment: Sources, Effects and Policy Perspectives, Cambridge University Press, 2011.; Chan, K. and Lim, K.: Use of the Oil Palm Waste Material for Increased Production, Soil Science and Agricultural Development in Malaysia, 213–243, 1980.; CIESIN: Country-level Population and Downscaled Projections based on the B2 Scenario, 1990–2100, available at: http://www.ciesin.columbia.edu/datasets/downscaled, last access: 13 September 2011, 2002a.; Erisman, J. W., Sutton, M. A., Galloway, J., Klimont, Z., and Winiwarter, W.: How a Century of Ammonia Synthesis Changed the World., Nature Geosci., 1, 636–639, 2008.; CIESIN: Country-level GDP and Downscaled Projections based on the A1, A2, B1, and B2 Marker Scenarios, 1990–2100, available at: http://www.ciesin.columbia.edu/datasets/downscaled, last access: 13 September 2011, 2002b.; Crutzen, P. J., Mosier, A. R., Smith, K. A., and Winiwarter, W.: N2O release from agro-biofuel production negates global warming reduction by replacing fossil fuels, Atmos. Chem. Phys., 8, 389–395, doi:10.5194/acp-8-389-2008, 2008.; Daberkow, S., Poulisse, J., and Vroomen, H.: Fertilizer requirements in 2015 and 2030, Tech. rep., Food and Agriculture Organization of the United Nations (FAO), Rome, 2000.; Davidson, E. A.: Representative Concentration Pathways and Mitigation Scenarios for Nitrous Oxide, Environ. Res. Lett., 7, 024005, doi:10.1088/1748-9326/7/2/024005, 2012.; Dawson, J. C., Huggins, D. R. , and Jones, S. S.: Characterizing Nitrogen Use Efficienc

 

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