number of downloads : ?
Title Transcription
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
Title Alternative (English)
On the Relation Between the Growth Percentage in Volume and Age of Forest Trees
File
language
jpn
Author
Yamashina, Kenji
Description
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.
Journal Title
Bulletin of the Faculty of Agriculture, Shimane University
Volume
3
Start Page
21
End Page
24
ISSN
0370940X
Published Date
1969-12-15
NCID
AN00108015
Publisher
島根大学農学部
Publisher Aalternative
Shimane University, Faculty of Agriculture
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Faculty of Life and Environmental Science
他の一覧
このエントリーをはてなブックマークに追加