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.
2003
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Per Otto Flæte Erlend Ystrøm HaartveitAbstract
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Heleen A. de Wit Lars R. Hole Øyvind Kaste Jan Mulder Arne O. Stuanes Richard WrightAbstract
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Petter NilsenAbstract
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Per Otto Flæte Erlend Ystrøm HaartveitAbstract
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Jannes StolteAbstract
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Abstract
Mortality, injury and height growth of planted Picea abies (L.) Karst. were examined in a six-year period in eight stands in southeast Norway. There were four residual stand densities (shelterwoods of high, medium and low density, 25 x 25 m patch cut) combined with three scarification treatments (unscarified, patch scarification, inverting) in a split-plot design. Mortality was generally low during the experimental period, and did not differ significantly between the residual density treatments (mean=11.1%). Both survival and plant height after 6 years were improved by inverting, while patch scarification was intermediate but not significantly different from the unscarified alternative. The patch-cutting resulted in the tallest plants, while only minor differences in height growth were found between the shelterwood treatments. The frequency of injured plants after six years was not significantly affected by the treatments (mean=10.6%). The improved plant establishment with inverting in this study is in agreement with previous studies on clear-cuts.