Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2016
Authors
Inga GreipslandAbstract
Climate scenarios for Norway predict an increase in temperature, a longer growing season and more precipitation in most parts of the country (Hanssen- Bauer et al., 2015). More precipitation will likely have a negative effect on water quality because of the increased fluxes of nutrients like phosphorus (P) and nitrogen (N) into rivers and lakes. (Deelstra et al, 2011). Higher water temperatures are favorable to cyanobacteria, which could grow faster and create toxic waters. Even today, Norway experiences large problems related to heavy precipitation; for instance flooding, erosion, nutrient loss and damage to infrastructure. If precipitation continues to increase, the need for more or more effective mitigation measures in agriculture would become necessary.
Authors
Tore SkrøppaAbstract
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Authors
Frank MillerAbstract
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Authors
Carrie Joy Andrew Einar Heegaard Rune Halvorsen Fernando Martinez-Pena Simon Egli Paul M. Kirk Claus Bässler Ulf Büntgen Jorge Aldea Klaus Høiland Lynne Boddy Håvard KauserudAbstract
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Authors
Krishna Reddy K. Mehreteab Tesfai Andrew Borrell Sekhar Udaya Nagothu Suresh Reddy K. Gurava Reddy K.Abstract
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Abstract
The present study aims to develop biologically sound and parsimonious site index models for Norway to predict changes in site index (SI) under different climatic conditions. The models are constructed using data from the Norwegian National Forest Inventory and climate data from the Norwegian meteorological institute. Site index was modeled using the potential modifier functional form, with a potential component (POT) depending on site quality classes and two modifier components (MOD): temperature and moisture. Each of these modifiers was based on a portfolio of candidate variables. The best model for spruce-dominated stands included temperature as modifier (R2 = 0.56). In the case of pine- and deciduous-dominated stands, the best models included both modifiers (R2 = 0.40 and 0.54 for temperature and moisture, respectively). We illustrate the use of the models by analyzing the possible shift in SI for year 2100 under one (RCP4.5) of the benchmark scenarios adopted by the Intergovernmental Panel on Climate Change for its fifth assessment report. The models presented can be valuable for evaluating the effect of climate change scenarios in Norwegian forests.
Authors
Xurong Mei Hongmin Dong Yue Li Nicholas Clarke Daozhi Gong Weiping Hao Yingchun Li Buchun Liu Xin Ma Wei XiongAbstract
No abstract has been registered
Authors
Gudni Thorvaldsson Liv Østrem Linda Öhlund Toroddur Sveinsson Sigridur Dalmannsdottir Rolvur Djurhuus Kenneth Høegh Thordis Anna KristjansdottirAbstract
Eight experiments with cultivars (cvs.) of grass and clover species were established in the Faroe Islands, Greenland, Iceland, Norway and Sweden to evaluate important forage species and cvs. in terms of yield potential, persistence and adaptation to variable climate in the West Nordic countries. Timothy had on average the highest spring cover after three years of trial together with smooth meadow grass (cv. Knut), whereas perennial ryegrass had the lowest spring cover after three years. On average cocksfoot (cv. Laban) and timothy (Grindstad related cvs.) gave the highest yield, 8.85 and 8.71 t ha-1, respectively, and smooth meadow grass and common bent grass the lower yields, 7.52 and 7.30 t ha-1, respectively. The results from these experiments show that we have a wide range of species and cultivars usable in the West Nordic areas. We can meet an increase in temperature to a certain level by moving the more southern species and cvs. farther north, however, our most winter hardy cvs. are still important to maintain.