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The crown shape and the mode of competition between saplings (<2m in height) of the two conifers,Picea jezoensisandAbies sachalinensis, of a sub-boreal forest, northern Japan, were investigated based on the diffusion model. A model for individual sapling growth considering both inter- and intraspecific competition was developed. The effect of species-specific crown shape on the sapling growth and...
The growth and mortality patterns and the mode of competition of six tree species forming a sub-boreal climax forest in Hokkaido, northern Japan, were investigated based on the diffusion model at the level of the individual tree ⩾ 2 m height in a 2·3-ha study site. Picea jezoensis, Picea glehnii, Betula ermanii and Abies sachalinensis were dominant species, occupying approx. 94% of the total basal...
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