種子島木成国有林におけるマツ材線虫病で枯死したヤクタネゴヨウの伐倒駆除  [in Japanese] Removal of Pinus armandii Franch. var. amamiana (Koidz.) Hatusima trees killed by pine wilt disease in the Kinari National Forest on tanega-shima Island, southwestern Japan  [in Japanese]

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Abstract

2003年9月に種子島の木成国有林で確認されたヤクタネゴヨウの新群生地において, 2004年1月に調査を行った結果, ヤクタネゴヨウ13個体とクロマツ7個体の枯死が確認された.これらのうち, 材片を採取したヤクタネゴヨウ10個体のうち7個体からと, クロマツ7個体のうち6個体からマツ材線虫病の病原体であるマツノザイセンチュウが検出された.このまま枯死したヤクタネゴヨウとクロマツを放置すると, 今後, マツ材線虫病被害が拡大すると予測されることから, すべての枯死木を伐倒し約50cmの丸太に玉切りし, 直径1cm以上の枝とともに個体群外へ搬出した.搬出した丸太と枝は, 焼物製作のための薪として焼却した.今回の活動を踏まえ, 今後のヤクタネゴヨウ自生地保全にむけたマツ材線虫病被害木のモニタリングから処理の一連の作業手順を提案した.

In January 2004, 13 dead Pinus armandii var. amamiana trees and seven dead P. thunbergii trees were found in the new population of P. armandii var. amamiana that had been discovered in the Kinari National Forest on Tanega-shima Island, southwestern Japan, in September 2003. Bursaphelenchus xylophilus, the pathogen causing pine wilt disease, was detected in wood chip samples from seven of ten dead P. armandii var. amamiana and six out of seven dead P. thunbergii. To prevent pine wilt disease from spreading in this population, all of the dead pine trees were felled and cut into logs approximately 50cm in length, and all logs and branches >1cm in diameter were removed from the forest by local volunteers in March 2004, then were used as firewood at "Tanega-shima Yaki" pottery. Based on these activities, we present management schemes for local NPOs and governments for monitoring and eradicating trees infected by pine wilt disease in order to conserve the natural population of P. armandii var. amamiana.

Journal

  • Japanese Journal of Conservation Ecology

    Japanese Journal of Conservation Ecology 10(1), 77-84, 2005

    The Ecological Society of Japan

References:  24

Cited by:  3

Codes

  • NII Article ID (NAID)
    110001888705
  • NII NACSIS-CAT ID (NCID)
    AA11857952
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1342-4327
  • NDL Article ID
    7421246
  • NDL Source Classification
    ZR1(科学技術--生物学)
  • NDL Call No.
    Z18-B498
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE 
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