The effect of improvement cutting on forests for soil and water conservation

DOI

Bibliographic Information

Other Title
  • 水土保全林における除伐の効果

Abstract

Harmonized method of forest management to keep the function of soil and water conservation and utilization of forest resources in a conifer plantation mixed with hardwood tree species was examined on the forest for soil and water conservation. The average tree height and diameter at breast height was 3.5m and 3.1cm, respectively. The results suggest that both of Sugi (Cryptomeria japonica) and broad-leaved trees can be harvested in good shape if the forest has improvement cutting and is treated in 3,300 trees/ha at the stage of same height in both trees even though the forest is categorized as the soil and water conservation forest. Soil and water conservation function was maintained through improvement cutting because forest floor was covered by undergrowth until 8 years after the cutting. It was suggested that the improvement cutting was required at least one time on a forest for soil and water conservation,which shifted to mixed forest,when broad-leaved trees reached to the same height as planted conifers.

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Keywords

Details 詳細情報について

  • CRID
    1390282679435239552
  • NII Article ID
    110009497749
  • DOI
    10.20660/applfor.13.1_37
  • ISSN
    21898294
    13429493
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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