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タイトルヨミ
リンボク ノ ザイセキ セイチョウリツ ト ネンレイ トノ カンケイ
日本語以外のタイトル
On the Relation Between the Growth Percentage in Volume and Age of Forest Trees
ファイル
言語
日本語
著者
山科 健二
内容記述(抄録等)
The accuracy of growth percentage in volume is an important problem in forest management plan, and so we must investigate the property of growth percentage in volume.
This report deals with the relation between the growth percentage in volume and age.
The investigation was made by use of three conifers, Sugi(Cryptomeria japonica D. D0N.), Hinoki(Chamaecyparis obtusa ENDL.), and Akamatsu(Pinus densiflora SIEB. et ZUCC.).
The results of the experiments are summarized in Tables 1~3, and illustrated in Fig. 1~5.
On the relation between the growth percentage in volume and age, the plotted points are described straight lines on logarithmic cross-section graph or semi-logarithmic one.
This straight line is expressed by the following formulas.
P_v = K_e^<-nt> (Tree at 40 years of age)
P_v = K_t^<-n> (Stand at 80 years of age)
The method of growth percentage in volume has often been used to indicate the past growth of a stand, also this method will be used to predict future growth of a stand.
On the relation among the site quality, tree species and growth percentage in volulme, a definite tendency was hardly recognized.
掲載誌名
島根大学農学部研究報告
3
開始ページ
21
終了ページ
24
ISSN
0370940X
発行日
1969-12-15
NCID
AN00108015
出版者
島根大学農学部
出版者別表記
Shimane University, Faculty of Agriculture
資料タイプ
紀要論文
部局
生物資源科学部
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