| Title Transcription | サンイン チホウ ニオケル テンネン スギ ノ チョッケイ ブンプ
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| Title Alternative (English) | On the Diameter Distribution for Natural Regenerated "SUGI" (Cryptomeria japonica D. DON) in San-in District
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| File | |
| language |
jpn
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| Author |
Yasui, Hitoshi
Okimura, Yoshito
Miyake, Noboru
Ishii, Hiroshi
Fujie, Isao
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| Description | This paper discribes an exprssions of diameter distribution that was reserched for the natural regenerated "SUGI" in uneven-aged stands on the Sanbe and Hikimi forest, Shimane Prefecture.
In an uneven-aged stand, the curve of numbers of trees plotted over dbh approaches an inverse J-shaped form, and this is a essential characteristic of an uneven-aged distribution. To determine whether a given diameter distribution was balanced or not, H. A. Meyer suggested plotting numbers of trees over dbh on semi-logarithmic paper. But the actual data shown that uncomform to this relationship as Fig. 1 and 2. Hence, we fitted Pearson's frequency distribution function for the these distribution, and decided that 1 type of the distribution curve. The results of calculated was as follows. Sanbe y = 5.14x^<-0.29101> <(12.88-x)>^<1.48863> Hikimi y = 4.83x^<-0.35417> <(13.34-x)>^<1.49367> The both equations confimed that well-iftting at statistic test. |
| Journal Title |
Bulletin of the Faculty of Agriculture, Shimane University
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| Volume | 2
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| Start Page | 62
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| End Page | 68
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| ISSN | 0370940X
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| Published Date | 1968-12-15
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| NCID | AN00108015
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| Publisher | 島根大学農学部
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| Publisher Aalternative | Shimane University, Faculty of Agriculture
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| NII Type |
Departmental Bulletin Paper
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| OAI-PMH Set |
Faculty of Life and Environmental Science
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| 他の一覧 |
