THE PRESENT STATE OF DEVELOPMENT OF THCK GROWTH OF TREES AND VEGETATION MANAGEMENT IN CLASS A RIVERS

DOI

Bibliographic Information

Other Title
  • 全国一級河川における河道内樹林化と樹木管理の現状に関する考察

Description

<p>We investigated the distribution of species becoming the problem as development of thick growth of trees in class A rivers and the effect of cutting and uprooting on the past vegetation management for those species in thirteen rivers. From the result that compared the data of the National Census on River Environments with the data of past vegetation management, Willow, Robinia pseudoacacia L and Bamboo were dominant species in Japanese rivers. Those species have been tending to increase in recent years, whereas periodical vegetation management has performed. From the result of field survey, the effect of cutting for those species was small in common. On the other hand, uprooting was effective by way of prevention for regeneration of trees as far as branches and roots were removed after uprooting. It is important that roots and branches were removed to raise preventive effect by uprooting.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390295757682491264
  • DOI
    10.11532/river.16.0_241
  • ISSN
    24366714
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Allowed

Report a problem

Back to top