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Title: 芦生演習林人工林調査 III : 見本林の造成史と外国産樹種の成長
Other Titles: Studies on the growth of planted stands in Kyoto University Forest in Ashiu III : History of tree introduction into Ashiu and the growth of several planted exotic tree species
Authors: 安藤, 信  KAKEN_name
中根, 勇雄  KAKEN_name
川那辺, 三郎  KAKEN_name
Author's alias: Ando, Makoto
Nakane, Isao
Kawanabe, Saburo
Issue Date: 20-Dec-1991
Publisher: 京都大学農学部附属演習林
Journal title: 京都大学農学部演習林報告
Volume: 63
Start page: 101
End page: 117
Abstract: 京都大学芦生演習林の外国産樹種人工造林地内に5個所の永久調査区を設け, その生育状況を継続して調べることにした。設定時と5年後の調査から次のようなことが明らかになった。1) 芦生演習林では設定以来70年間に80種以上の樹木が植栽され, そのうち外国産樹種は40種を超え, 植栽本数は16700本を超えた。2) 現在林分を形成している外国産樹種は林齢が55年生のドイツトウヒと, 31, 34年生のメタセコイア2林分, 28, 29年生のモリンダトウヒ2林分, 12年生のイヌカラマツの4種, 6林分であった。3) 最大積雪深が2mを超える温帯落葉広葉樹林帯域に植栽されているドイツトウヒ, モリンダトウヒはスギやヒノキ造林木と比べて変わらないか, むしろ優れた成長を示していた。暖帯落葉広葉樹林帯域に植栽されているメタセコイアの成長は平均的なスギ林と比較すると直径, 樹高成長はほぼ2倍に近かった。4) 温帯落葉広葉樹林帯域のイヌカラマツは雪害を受けたが近年成長が回復する傾向がみられた。5) 暖帯落葉広葉樹林帯域ではテーダマツ, ランダイスギ, ラクウショウ, ユリノキが単木的に生育していた。
To investigate the growth of trees, 5 permanent study plots were set in planted exotic tree species stands in Kyoto University Forest in Ashiu located at northern east part of Kyoto Prefecture in 1984. The result of the investigation for 5 years were as follows : 1) Many exotic tree species have been planted in Ashiu for 70 years. The number of these species was over 40 and of planting trees was about 16, 700. 2) The number of surviving and forming stands was only 4 species and 6 stands. The growth of Picea Abies stand of 55 years old and two Picea Morinda stand of 28 and 29 years old were as good as, or better than that of Sugi (Cryptomeria japonica) and Hinoki (Chamaecyparis obtusa) stands, which were dominant planting species in Ashiu, in cool temperate zone whose snow depth was over 200 cm. And the average height and diameter of the better stands in two Metasequoia glyptostroboides of 31 and 34 years old was twofold of normal Sugi stand in warm temperate zone. 3) Pseudolarix amabilis of 12 years old planted in cool temperate zone has been damaged by snow, but recently began to grow rapidly. 4) Pinus Taeda, Cunninghamia Konishii, Taxodium distichum and Liriodendron tulipifera were growing in warm temperate zone in single tree.
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