Per Ambus

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  1. 2013
  2. Published

    Annual maize and perennial grass-clover strip cropping for increased resource use efficiency and productivity using organic farming practice as a model. / Hauggaard-Nielsen, Henrik; Johansen, Anders; Carter, Mette Sustmann; Ambus, Per; Jensen, Erik Steen.

    In: European Journal of Agronomy, Vol. 47, 2013, p. 55-64.

    Publication: Research - peer-review › Journal article – Annual report year: 2013

  3. Published

    Effects of digestate from anaerobically digested cattle slurry and plant materials on soil microbial community and emission of CO2 and N2O. / Johansen, Anders; Carter, Mette Sustmann; Jensen, Erik S.; Hauggaard-Nielsen, Henrik; Ambus, Per.

    In: Applied Soil Ecology, Vol. 63, 2013, p. 36-44.

    Publication: Research - peer-review › Journal article – Annual report year: 2013

  4. Published

    Long-term effects of cropping system on N2O emission potential. / Petersen, Søren O.; Ambus, Per; Elsgaard, Lars; Schjønning, Per; Olesen, Jørgen E.

    In: Soil Biology & Biochemistry, Vol. 57, 2013, p. 706-712.

    Publication: Research - peer-review › Journal article – Annual report year: 2013

  5. 2012
  6. Published

    Consequences of field N2O emissions for the environmental sustainability of plant-based biofuels produced within an organic farming system. / Carter, Mette Sustmann; Hauggaard-Nielsen, Henrik; Heiske, Stefan; Jensen, Morten; Thomsen, Sune Tjalfe; Schmidt, Jens Ejbye; Johansen, Anders; Ambus, Per.

    In: Global Change Biology. Bioenergy, Vol. 4, No. 4, 2012, p. 435-452.

    Publication: Research - peer-review › Journal article – Annual report year: 2011

  7. Published

    Effects of slow and fast pyrolysis biochar on soil C and N turnover dynamics. / Bruun, Esben; Ambus, Per; Egsgaard, Helge; Hauggaard-Nielsen, Henrik.

    In: Soil Biology & Biochemistry, Vol. 46, No. 4, 2012, p. 73-79.

    Publication: Research - peer-review › Journal article – Annual report year: 2011

  8. Published

    Microbial biomass, microbial diversity, soil carbon storage, and stability after incubation of soil from grass-clover pastures of different age. / Müller-Stöver, Dorette Sophie; Hauggaard-Nielsen, Henrik; Eriksen, Jørgen; Ambus, Per; Johansen, Anders.

    In: Biology and Fertility of Soils, Vol. 48, No. 4, 2012, p. 371-383.

    Publication: Research - peer-review › Journal article – Annual report year: 2012

  9. Published

    Soil respiration is stimulated by elevated CO2 and reduced by summer drought: three years of measurements in a multifactor ecosystem manipulation experiment in a temperate heathland (CLIMAITE). / Selsted, Merete Bang; van der Linden, Leon; Ibrom, Andreas; Michelsen, Anders; Larsen, Klaus Steenberg; Pedersen, Jane K.; Mikkelsen, Teis Nørgaard; Pilegaard, Kim; Beier, Claus; Ambus, Per.

    In: Global Change Biology, Vol. 18, No. 4, 2012, p. 1216-1230.

    Publication: Research - peer-review › Journal article – Annual report year: 2012

  10. Published

    Strip cropping of alternating perennial grass–clover and annual rye–vetch intercrops when grown within an organic farming system. / Hauggaard-Nielsen, Henrik; Johansen, A.; Carter, Mette Sustmann; Ambus, Per; Jensen, E.S.

    In: Field Crops Research, Vol. 136, 2012, p. 1-11.

    Publication: Research - peer-review › Journal article – Annual report year: 2012

  11. Published

    Terrestrial plant methane production. / Mikkelsen, Teis Nørgaard; Bruhn, Dan; Møller, Ian M.; Ambus, Per.

    2012. Abstract from International conference on Biological Reactions of Forests to Climate Change and Air Pollution, Kaunas, Lithuania.

    Publication: Research › Conference abstract for conference – Annual report year: 2012

  12. Published

    Terrestrial plant methane production and emission. / Bruhn, Dan; Møller, Ian M.; Mikkelsen, Teis Nørgaard; Ambus, Per.

    In: Physiologia Plantarum, Vol. 144, 2012, p. 201-209.

    Publication: Research - peer-review › Journal article – Annual report year: 2012

  13. Published

    UV-induced carbon monoxide emission from sand and living vegetation. / Bruhn, Dan; Albert, Kristian Rost; Mikkelsen, Teis Nørgaard; Ambus, Per.

    In: Biogeosciences Discussions, Vol. 9, No. 7, 2012, p. 8449.

    Publication: Research - peer-review › Journal article – Annual report year: 2012

  14. 2011
  15. Published

    Application of biochar to soil and N2O emissions: potential effects of blending fast‐pyrolysis biochar with anaerobically digested slurry. / Bruun, Esben; Müller-Stöver, Dorette Sophie; Ambus, Per; Hauggaard-Nielsen, Henrik.

    In: European Journal of Soil Science, Vol. 62, No. 4, 2011, p. 581-589.

    Publication: Research - peer-review › Journal article – Annual report year: 2011

  16. Published

    Cowpea N rhizodeposition and its below-ground transfer to a co-existing and to a subsequent millet crop on a sandy soil of the Sudano-Sahelian eco-zone. / Laberge, Guillaume; Haussmann, Bettina I.G.; Ambus, Per; Høgh-Jensen, Henning.

    In: Plant and Soil, Vol. 340, No. 1-2, 2011, p. 369-382.

    Publication: Research - peer-review › Journal article – Annual report year: 2011

  17. Published

    Effects of clover density on N2O emissions and plant-soil N transfers in a fertilised upland pasture. / Klumpp, Katja; Bloor, Juliette M. G.; Ambus, Per; Soussana, Jean-François.

    In: Plant and Soil, Vol. 343, No. 1-2, 2011, p. 97-107.

    Publication: Research - peer-review › Journal article – Annual report year: 2010

  18. Published

    Effects of elevated atmospheric CO2, prolonged summer drought and temperature increase on N2O and CH4 fluxes in a temperate heathland. / Carter, Mette Sustmann; Ambus, Per; Albert, Kristian Rost; Larsen, Klaus Steenberg; Andersson, Michael; Priemé, Anders; van der Linden, Leon Gareth; Beier, Claus.

    In: Soil Biology & Biochemistry, Vol. 43, No. 8, 2011, p. 1660-1670.

    Publication: Research - peer-review › Journal article – Annual report year: 2011

  19. Published

    Energy Production from Marine Biomass (Ulva lactuca). / Nikolaisen, Lars ; Daugbjerg Jensen, Peter ; Svane Bech, Karin ; Dahl, Jonas; Busk, Jørgen; Brødsgaard, Torben ; Rasmussen, Michael Bo ; Bruhn, Annette; Bjerre, Anne-Belinda ; Bangsø Nielsen, Henrik; Albert, Kristian Rost; Ambus, Per; Kádár, Zsófia; Heiske, Stefan; Sander, Bo; Schmidt, Erik Ravn.

    Danish Technological Institute, 2011. 72 p.

    Publication: Research › Report – Annual report year: 2012

  20. Published

    Field emissions of N2O during biomass production may affect the sustainability of agro-biofuels. / Carter, Mette Sustmann; Hauggaard-Nielsen, Henrik; Heiske, Stefan; Thomsen, Sune Tjalfe; Jensen, Morten; Schmidt, Jens Ejbye; Johansen, Anders; Ambus, Per.

    2011. Abstract from Sixth International Symposium on Non-CO2 Greenhouse Gases, Amsterdam (NL), 2-4 Nov, .

    Publication: Research › Conference abstract for conference – Annual report year: 2011

  21. Published

    Greenhouse gas emissions from cultivation of energy crops may affect the sustainability of biofuels. / Carter, Mette Sustmann; Hauggaard-Nielsen, Henrik; Heiske, Stefan; Thomsen, Sune Tjalfe; Jensen, Morten; Schmidt, Jens Ejbye; Johansen, Anders; Ambus, Per.

    In: Energy Systems and Technologies for the coming Century : Proceedings. Roskilde : Risø National Laboratory for Sustainable Energy, 2011. p. 283-283 (Denmark. Forskningscenter Risoe. Risoe-R; No. 1776(EN)).

    Publication: Research - peer-review › Conference abstract in proceedings – Annual report year: 2011

  22. Published

    Influence of fast pyrolysis temperature on biochar labile fraction and short-term carbon loss in a loamy soil. / Bruun, Esben; Hauggaard-Nielsen, Henrik; Ibrahim, Norazana; Egsgaard, Helge; Ambus, Per; Jensen, Peter Arendt; Dam-Johansen, Kim.

    In: Biomass & Bioenergy, Vol. 35, No. 3, 2011, p. 1182-1189.

    Publication: Research - peer-review › Journal article – Annual report year: 2011

  23. Published

    Is methane released from the forest canopy?. / Mikkelsen, Teis Nørgaard; Bruhn, Dan; Ambus, Per; Larsen, Klaus Steenberg; Ibrom, Andreas; Pilegaard, Kim.

    In: iForest, Vol. 4, 2011, p. 200-204.

    Publication: Research - peer-review › Journal article – Annual report year: 2011

  24. Published

    Measurement of carbon dioxide fluxes in a free-air carbon dioxide enrichment experiment using the closed flux chamber technique. / Selsted, Merete Bang; Ambus, Per; Michelsen, Anders; Linden, Leon; Larsen, Klaus Steenberg; Pilegaard, Kim; Mikkelsen, Teis Nørgaard; Beier, Claus.

    In: Atmospheric Environment, Vol. 45, No. 1, 2011, p. 208-214.

    Publication: Research - peer-review › Journal article – Annual report year: 2010

  25. Published

    Organic matter flow in the food web at a temperate heath under multifactorial climate change. / Andresen, Louise C.; Konestabo, Heidi S.; Maraldo, Kristine; Holmstrup, Martin; Ambus, Per; Beier, Claus; Michelsen, Anders.

    In: Rapid Communications in Mass Spectrometry, Vol. 25, No. 11, 2011, p. 1485-1496.

    Publication: Research - peer-review › Journal article – Annual report year: 2011

  26. E-pub ahead of print

    Reactive nitrogen and greenhouse gas flux interactions in terrestrial ecosystems. / Ambus, Per; Skiba, Ute; Butterbach-Bahl, K.; Sutton, M.A.

    In: Plant and Soil, 2011.

    Publication: Research - peer-review › Editorial – Annual report year: 2011

  27. Published

    Reduced N cycling in response to elevated CO2, warming, and drought in a Danish heathland. / Larsen, Klaus Steenberg; Andresen, Louise C.; Beier, Claus; Jonasson, Sven; Albert, Kristian Rost; Ambus, Per; Arndal, Marie F.; Carter, Mette Sustmann; Christensen, Søren; Holmstrup, Martin; Ibrom, Andreas; Kongstad, Jane; van der Linden, Leon; Maraldo, Kristine; Michelsen, Anders; Mikkelsen, Teis Nørgaard; Pilegaard, Kim; Primé, Anders; Ro-Poulsen, Helge; Schmidt, Inger K.; Selsted, Merete Bang; Stevnbak, Karen.

    2011. Abstract from NitroEurope Open Conference - Nitrogen and Global Change, Edinburgh (GB), 11-15 Apr, .

    Publication: Research › Conference abstract for conference – Annual report year: 2011

  28. Published

    Reduced N cycling in response to elevated CO2, warming, and drought in a Danish heathland: Synthesizing results of the CLIMAITE project after two years of treatments. / Larsen, Klaus Steenberg; Andresen, Louise C.; Beier, Claus; Jonasson, Sven; Albert, Kristian Rost; Ambus, Per; Arndal, Marie F.; Carter, Mette Sustmann; Christensen, Søren; Holmstrup, Martin; Ibrom, Andreas; Kongstad, Jane; van der Linden, Leon Gareth; Maraldo, Kristine; Michelsen, Anders; Mikkelsen, Teis Nørgaard; Pilegaard, Kim; Priemé, Anders; Ro-Poulsen, Helge; Schmidt, Inger K.; Selsted, Merete Bang; Stevnbak, Karen.

    In: Global Change Biology, Vol. 17, No. 5, 2011, p. 1884-1899.

    Publication: Research - peer-review › Journal article – Annual report year: 2010

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