L
Lars Peter Nielsen
Researcher at Aarhus University
Publications - 244
Citations - 16317
Lars Peter Nielsen is an academic researcher from Aarhus University. The author has contributed to research in topics: Denitrification & Nitrification. The author has an hindex of 64, co-authored 232 publications receiving 14640 citations. Previous affiliations of Lars Peter Nielsen include Aalborg University & Aarhus University Hospital.
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Journal ArticleDOI
Methods for measuring denitrification: diverse approaches to a difficult problem
Peter M. Groffman,Mark A. Altabet,John Karl Böhlke,Klaus Butterbach-Bahl,Mark B. David,Mary K. Firestone,Anne E. Giblin,Todd M. Kana,Lars Peter Nielsen,Mary A. Voytek +9 more
TL;DR: Comparison of mass balance and stoichiometric approaches that constrain estimates of denitrification at large scales with point measurements (made using multiple methods), in multiple systems, is likely to propel more improvement in Denitrification methods over the next few years.
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Pathways of organic carbon oxidation in three continental margin sediments
Donald E. Canfield,Bo Barker Jørgensen,Henrik Fossing,Ronnie N. Glud,Jens K. Gundersen,Niels B. Ramsing,Bo Thamdrup,Jens Würgler Hansen,Lars Peter Nielsen,Per O. J. Hall +9 more
TL;DR: It is suspected that the importance of O2 respiration in many coastal sediments has been overestimated, whereas metal oxide reduction (both Fe and Mn reduction) has probably been well underestimated.
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Denitrification in sediment determined from nitrogen isotope pairing
TL;DR: In this article, a new method for accurate and easy measurement of denitrification in sediments is presented, in which the water overlying intact sediment cores was enriched with 15NO3− which mixed with the 14NO3 − of the natural sources of NO3− and the formation of unlabeled (14N14N) dinitrogen pairs was measured by mass spectrometry after a few hours incubation.
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Filamentous bacteria transport electrons over centimetre distances
Christian Pfeffer,Steffen Larsen,Jie Song,Mingdong Dong,Flemming Besenbacher,Rikke Louise Meyer,Kasper Urup Kjeldsen,Lars Schreiber,Yuri A. Gorby,Mohamed Y. El-Naggar,Kar Man Leung,Andreas Schramm,Nils Risgaard-Petersen,Lars Peter Nielsen +13 more
TL;DR: Evidence is presented that the native conductors are long, filamentous bacteria that abounded in sediment zones with electric currents and along their length they contained strings with distinct properties in accordance with a function as electron transporters.
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Electric currents couple spatially separated biogeochemical processes in marine sediment
Lars Peter Nielsen,Nils Risgaard-Petersen,Henrik Fossing,Peter Bondo Christensen,Mikio Sayama +4 more
TL;DR: Evidence is provided that electric currents running through defaunated sediment couple oxygen consumption at the sediment surface to oxidation of hydrogen sulphide and organic carbon deep within the sediment and suggests that the electric current was conducted by bacterial nanowires combined with pyrite, soluble electron shuttles and outer-membrane cytochromes.