An Appraisal of the Practice of Improvement Cutting to Enhance In-stand Scenic View in A Broad-leaf Secondary Forest : A case study done in Gifu city

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In this paper, improvement cutting done in a broad-leaf secondary forest for recreational use, was appraised by a standard presented in this paper. This improvement cutting was done by the 'Forest for Safeguarding Living Environment Project (FSLEP)' in Gifu City. This standard, based on data collected in two plots of the study forest, shows correlations among the average DBHs of the trees remaining after cutting and other parameters of stand structure, when trees having a larger DBH in the descending order are given preference for saving over cutting. The other parameters are the STD of DBH, stand density, the number of species, the diversity index and the spatial pattern of trees. The average DBHs of the two plots after improvement cutting, were 8.7cm and 10.0cm respectively. The parameters of actual stands after cutting - except stand density - were bigger than those simulated by standards. Therefore, it may be concluded that this kind of improvement cutting enhances the variety of in-stand scenic view variation. Nevertheless, the spatial patter of remaining trees belonged to the Ca_1 type, both in the actual stands and the standard.
森林計画学会の論文