Planning in selection forests - some characteristics, dilemmas, and suggestions
2000
Boncina, A. (Ljubljana Univ. (Slovenia). Biotechnical Fac., Forestry and Renewable Forest Resources Dept.)
Development of forest management in selection forests in Slovenia is described. Evaluation of sustainable forest management (SFM) and planning was based on diameter structure, comparing actual diameter structure to normal (ideal) diameter structure. However, negative exponential distribution is not always appropriate to present ideal diameter structure. Analysis of diameter structure is not sufficient for evaluation of SFM in selection forests. At the same time, evaluation of other stand parameters is necessary, e.g. natural regeneration, tree species composition, vitality, growing stock and volume increment, quality etc. Comparison of the above mentioned parameters to their reference values presents a basis for silvicultural measures. Reference values can be determined either by analysis of reference plots or by monitoring of stand development. Author suggests to improve monitoring of selection forests by establishing reference plots, used for monitoring the selection forest on stand level.
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