Damage to Residual Stands from Thinning with Short-span Tower Yarders : Re-examination of Wounds after Five Years

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概要

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• The current status of wounds on residual trees was investigated and compared with the wound status from five years ago when thestands were thinned and logged. Wound status was defined according to the four levels of severity based on appearance. Several damaged trees were cut for inspection of the wounded areas. Most wounds of a lighter severity level had already healed by occlusionand were no longer evident. Wounds reflecting heavy damage but had healed. were smaller in the horizontal dimension. orwidth. than those not yet healed. Slight wounds. but with a current status reflecting persistent damage were smaller in the verticaldimension, or length. An inspection of wound sections revealed the development of discoloration in the wood. Only the slight woundsthat healed early had no or small discolored areas. The width of discolored areas of wounds in which cambium was still exposedwas greater than the original width of the wound. In conclusion, wound width rather than length significantly affects healing or occlusion of wounds.

• 一般社団法人日本森林学会の論文
• 2000-08-16

著者

• Suzuki Yasushi

  Faculty Of Agriculture Kochi University

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• Estimation of Stand Density of Young Plantations using Digitized Aerial Photographs in Ehime Prefecture, Japan(Silvilaser)
• Damage to Residual Stands from Thinning with Short-span Tower Yarders : Re-examination of Wounds after Five Years

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