Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2011
Forfattere
Signe Kynding Borgen Arne Grønlund Olof Andrén Thomas Kätterer Lars Bakken Keith PaustianSammendrag
Monitoring changes in soil organic carbon (SOC) is not only linked to atmospheric CO2 dynamics, but also to the sustainability of agricultural systems, maintaining food security, reducing water pollution and soil erosion. In accordance with the methodology of the Intergovernmental Panel for Climate Change (IPCC), we developed a Tier 2 method for estimating CO2 emissions from cropland on mineral soils in Norway and compared the results with those of a Tier 1 method. As in most countries, long-term C stock or emission data sets useful for generating factors are scarce in Norway. We used a soil C balance model (ICBM) to calculate country-specific C stock change factors for relevant management systems. Agricultural activity data for 31 agrozones, from 58 ºN to 71ºN, was applied to estimate annual net CO2 emissions from 1999 to 2009. Calculated annual net emissions were larger when estimated by the Tier 2 method than Tier 1 because i) Tier 2-generated stock change factors for crop rotations with animal manure application were larger than the Tier 1 default values and ii) major changes in agricultural management during the inventory period led to a reduction in manure availability. We conclude that model-based Tier 2 methods are promising when empirical data are limited, but activity data, especially regarding animal manure practices (application rates and crop rotation preferences) are crucial for emission estimates by the IPCC methods.
Forfattere
Jihong Liu ClarkeSammendrag
Det er ikke registrert sammendrag
Forfattere
Christian Guido Bruckner Jana Lange Stephanie Markert Kerstin Mammitzsch Günter Jost Dörte Becher Thomas Schweder Matthias Labrenz Klaus JürgensSammendrag
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Sammendrag
Det er ikke registrert sammendrag
Forfattere
Sissel Torre Knut Asbjørn Solhaug Meseret Tesema Terfa Jorunn Elisabeth Olsen Christopher Rodriguez G Goutam Aruppillai Suthaparan Arne Stensvand Leiv M. Mortensen Hans Ragnar GislerødSammendrag
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Forfattere
Anette Aamodt Moldestad Bernt Hoel Anne Kjersti UhlenSammendrag
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Sammendrag
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Forfattere
Igor A. Yakovlev YeonKyeong Lee Bjørn Rotter Tore Skrøppa Jorunn Elisabeth Olsen Øystein Johnsen Carl Gunnar FossdalSammendrag
Det er ikke registrert sammendrag
Sammendrag
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Sammendrag
Det er ikke registrert sammendrag