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Title Transcription
タイスウ セイキ ブンプ ト ソノ オウヨウ ダイ5ホウ コンゴウ タイスウ セイキ ブンプ ノ タクバツリン ジュコウ ブンプ エノ オウヨウ
Title Alternative
Lognormal Distribution and its Applications(5) : Application of Mixed Lognormal Distribution to Height Distributions of Selection Forest
File
language
jpn
Author
Inada, Mitsuo
Description
The mixed lognormal distribution, the two-component univariate lognormal mixture distribution,
f(H) = (N_1)/N・1/(√<2π>σ_1H)exp{-(<(log H-μ_1)>^^^2)/(2<σ_1>^^^2)}
+(N_2)/N・1/(√<2π>σ_2H)exp{-(<(log H-μ_2)>^^^2)/(2<σ_2>^^^2)}
was proposed as a mathematical model to describe the height frequency distribution in selection forests. The model was applied to 4 observed height frequency distributions in Ate(Thujopsis dolabrata var. H0NDAI MAKIN0) selection forests. In order to estimate the 6 parameters of the mixed lognormal distribution, the method of momemts estimation was used instead of the graphical techinques. The principle of the method was summarized briefly. The agreement between the observed and the expected frequencies was tested by the chi-square test. The model achieved a good fit to 3 observed height frequency distributions. The mixed lognormal distribution may be useful for analyzing the height frequency distribution of selection forests.
Journal Title
Bulletin of the Faculty of Agriculture, Shimane University
Volume
21
Start Page
34
End Page
38
ISSN
0370940X
Published Date
1987-12-21
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