同齢人工林の上層樹高―本数曲線の検討

島根大学農学部研究報告 Volume 25 Page 23-26 published_at 1991-12-21
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Title
同齢人工林の上層樹高―本数曲線の検討
Title
Analysis of the Height-Number Curve for Even-Aged Stands
Title Transcription
ドウレイ ジンコウ リン ノ ジョウソウ ジュコウ ホンスウ キョクセン ノ ケントウ
Creator
Inada Mitsuo
Source Title
島根大学農学部研究報告
Bulletin of the Faculty of Agriculture, Shimane University
Volume 25
Start Page 23
End Page 26
Journal Identifire
ISSN 0370940X
Descriptions
Applying the Gompertz growth equation,the auther derived the formual for height-number curve in even-aged forest stands. The mathematical expression of the height-number curve is
N = d - aexp [ - bexp (cH)]
where N is a tree number,H is a stand height and a, b, c, d, are constants.
The applicability of this equation was examined by applied it to the observed height-number relationships. The goodness of fit of the equation was good enough for use in comparison with following existing height-number equaiton,
when H < H_0, N = α exp (-βH)
when H ≧ H_0, N = γ exp (-δH)
where N is a tree number, H is a stand height and H_0, α,β,γ,δ are constants.
Language
jpn
Resource Type departmental bulletin paper
Publisher
島根大学農学部
Shimane University, Faculty of Agriculture
Date of Issued 1991-12-21
Access Rights open access
Relation
[NCID] AN00108015