Development of species composition in long term simulations with an individual-tree growth simulator
2009
Huber, M.,University of Natural Resources and Applied Life Sciences, Vienna (Austria). Dept. of Forest and Soil Sciences | Sterba, H.,University of Natural Resources and Applied Life Sciences, Vienna (Austria). Dept. of Forest and Soil Sciences
The spruce-fir-beech dominated forest stands in Litschau in the Austrian part of the Bohemian Massif were converted by former forest management practices into pure Norway spruce stands and are now discussed to be reconverted into the potential natural vegetation type. We investigated if the individual tree growth simulator PROGNAUS can be used to predict the redevelopment of managed forest ecosystems into natural forest ecosystems regarding species composition. The development of 23 stands in Litschau has been simulated over 1,000 years under the no-management option. Generally, the simulated species distribution agrees quite well with the expectations of the potential natural vegetation type. However, the predicted amounts of silver fir and maple species are lower than expected, which is probably due to browsing and forest management practices. These effects have been included in the parametrization of the data used in the simulator PROGNAUS.
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