ダウンロード数 : ?
タイトルヨミ
シマネダイガク マツエ シケンチ ニ ショクサイ サレタ ヒノキアスナロ ジンコウリン ノ セイチョウ ヨソク
日本語以外のタイトル
Growth estimate of hiba arborvitae plantation in the Matsue Forest, Shimane University
ファイル
言語
日本語
著者
尾崎 嘉信
葛西 絵里香
黒崎 勇登
和田 慎
内容記述(抄録等)
In the Matsue Forest, a plantation of hiba arborvitae was established in 1970. Since 1995, we have conducted tree census periodically at that plantation. Based on the census data we looked back the growth history of the planted trees and try to forecast their future growth. A D-H curve plotted with the data of 2014 census indicated that maximum tree height could be 34 m, while that curve made from the data of 1995 exhibited the maximum value of 15 m. Current annual increment of basal area and stand volume has been significantly improved during past two decades to show the maximum values, 1.77 m^2 ha^<-1> year^<-1> and 14.5 m^3 ha^<-1> year^<-1>, respectively. As a result of calculation, this plantation would reach the maximum stand volume 384 m^3 ha^<-1>. At the age of 72, the stand volume of the plantation might exceed 380 m^3 ha^<-1> and relative growth rate would be close to 0 year^<-1>. This means no drastic growth could be expected after that age. From the viewpoint of timber production, we need to decide how to manage this plantation around 70th year after establishment, e.g., to clear-cut the whole stand or to select timbers for logging. However, we need some more time to evaluate the behavior of hiba arborvitae plantation accurately.
主題
evergreen conifer
growth rate
logistic curve
San'In region
yield
掲載誌名
島根大学生物資源科学部研究報告
20
開始ページ
29
終了ページ
34
ISSN
13433644
発行日
2015-09-30
NCID
AA1112906X
出版者
島根大学生物資源科学部
資料タイプ
紀要論文
ファイル形式
PDF
著者版/出版社版
出版社版
業績ID
e28219
e29393
部局
生物資源科学部
他の一覧