caa a22 4500 463208986 CHVBK 20180405153134.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s10705-006-9074-2 doi (NATIONALLICENCE)springer-10.1007/s10705-006-9074-2 Application of the DNDC model to tile-drained Illinois agroecosystems: model comparison of conventional and diversified rotations [Elektronische Daten] [Christina Tonitto, Mark David, Changsheng Li, Laurie Drinkwater] Using the DeNitrification-DeComposition (DNDC) model we compare conventional, fertilizer-driven corn-soybean rotations to alternative management scenarios which include the management of cereal rye cover crops and corn-soybean-wheat-red clover rotations. We conduct our analysis for tile-drained, silty clay loam soils of Illinois. DNDC simulations suggest that, relative to conventional rotations, a nitrate leaching reduction of 30-50% under corn and of 15-50% under soybean crops can be achieved with diversified rotations, an outcome which corroborates results from a quantitative literature review we previously conducted using a meta-analysis framework. Additionally, over a 10-year simulation, legume-fertilized systems are predicted to result in 52% lower N2O gas flux relative to fertilizer-driven systems. We identify soil organic carbon storage, legume N-fixation rate, and cereal rye cover crop growth as areas requiring further development to accurately apply DNDC to diversified cropping systems. Overall, DNDC simulation suggests diversified rotations that alternate winter and summer annuals have the potential to dramatically increase N retention in agroecosystems. Springer Science+Business Media B.V., 2007 Nitrogen management nationallicence Agroecosystem model nationallicence Nitrate leaching nationallicence N trace gas nationallicence Cover crop nationallicence Legume nationallicence Corn nationallicence Soybean nationallicence Tonitto Christina Department of Horticulture, Cornell University, 14853, Ithaca, NY, USA aut David Mark Department of Natural Resources and Environmental Sciences, University of Illinois, 61801, Urbana, IL, USA aut Li Changsheng Complex Systems Research Center, Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, 03824, Durham, NH, USA aut Drinkwater Laurie Department of Horticulture, Cornell University, 14853, Ithaca, NY, USA aut Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 78/1(2007-05-01), 65-81 1385-1314 78:1<65 2007 78 10705 https://doi.org/10.1007/s10705-006-9074-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-006-9074-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tonitto Christina Department of Horticulture, Cornell University, 14853, Ithaca, NY, USA aut NATIONALLICENCE 700 1- David Mark Department of Natural Resources and Environmental Sciences, University of Illinois, 61801, Urbana, IL, USA aut NATIONALLICENCE 700 1- Li Changsheng Complex Systems Research Center, Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, 03824, Durham, NH, USA aut NATIONALLICENCE 700 1- Drinkwater Laurie Department of Horticulture, Cornell University, 14853, Ithaca, NY, USA aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 78/1(2007-05-01), 65-81 1385-1314 78:1<65 2007 78 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 463208978 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer