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.
2000
Sammendrag
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Forfattere
Dan Aamlid Natalya Vassilieva Per Arild Aarrestad Michael L. Gytarsky S. Lindmo Rodion Karaban Vladimir Korotkov Tord K. Rindal V. Kuzmicheva Kåre Olav VennSammendrag
Six sites for forest ecosystem monitoring were established to perform a long-term study of effects of air pollution on pine forest ecosystems along a pollution gradient in the border areas between Norway and Russia. The main pollution source is a nickel smelter.Several methods and analyses were used to investigate different compartments of this northern boreal forest ecosystem. The differences in ecological condition and diversity observed among the research sites are probably due to the air pollution load in the area. The elevated concentrations of Ni and Cu detected in plant tissues, the reduced lichen vegetation on stems and on the forest floor, and the reduced or absent moss vegetation are the most obvious impacts in the investigated area.
Forfattere
Seif S. Madoffe Alf Bakke J.A. TarimoSammendrag
Det er ikke registrert sammendrag
Forfattere
P. Dennis G.L.A. Fry Arild AndersenSammendrag
Faunaen av kortvinger og løpebiller ble undersøkt i kornåkre og tilgrensende områder. Migrasjon av den enkelte art mellom åker og åkerkant ble kartlagt ved bruk av avlange fallfeller (såkalte "guttertraps") og jordprøver.
Forfattere
Bent Braskerud Helge Lundekvam Tore KrogstadSammendrag
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Sammendrag
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Forfattere
Marianne BechmannSammendrag
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Forfattere
Dale W. Johnson Trine Aulstad Sogn Sheila KvindeslandSammendrag
The nutrient cycling model (NuCM) is a stand level model that depicts the cycling of N, P, K, Ca, Mg, and S on daily, weekly or monthly time scales. NuCM has been applied to several forest ecosystems (ponderosa pine, red spruce, beech, eastern deciduous, loblolly pine, slash pine, Scots pine, and Norway spruce) to simulate the effects of changing atmospheric deposition, harvesting, species change, precipitation quantity, increased temperature, elevated CO2, and liming. In some cases (e.g., harvesting, liming), the model output has matched field data quite well; however, it cannot be known whether the model does so because it accurately portrays nutrient cycling processes or simply because of chance. In other cases, NuCM simulations have either failed to match field data (as in the case of the observed chromatographic response of soil solution cations to a nitrate pulse in a beech forest) or produced results that are counterintuitive but as yet untested (as in the case where increased N translocation caused increased leaching). In that the primary purpose of these simulations has been heuristic rather than predictive, the simulation outputs that are either inconsistent with field data or counter-intuitive are of greatest interest. This review of NuCM applications led to the conclusion that the model has been more successful in matching decadal-scale changes in nutrient pools and soils and less successful in capturing intra-annual variations in soil solution chemistry. The NuCM model, like all models, can use improvements and these have been suggested; however, the model as it is has provided valuable insights into nutrient cycling in forest ecosystems, including the potential for short-term soil change and the great importance of nutrient translocation in N cycling.
Forfattere
Ola FlatenSammendrag
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Forfattere
Tore SkrøppaSammendrag
Det er ikke registrert sammendrag