| タイトルヨミ | 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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| 日本語以外のタイトル | On the Diameter Distribution for Natural Regenerated "SUGI" (Cryptomeria japonica D. DON) in San-in District
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| ファイル | |
| 言語 |
日本語
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| 著者 |
安井 鈞
沖村 義人
三宅 登
石井 弘
藤江 勲
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| 内容記述（抄録等） | 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. |
| 掲載誌名 |
島根大学農学部研究報告
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| 巻 | 2
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| 開始ページ | 62
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| 終了ページ | 68
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| ISSN | 0370940X
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| 発行日 | 1968-12-15
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| NCID | AN00108015
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| 出版者 | 島根大学農学部
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| 出版者別表記 | Shimane University, Faculty of Agriculture
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| 資料タイプ |
紀要論文
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| 部局 |
生物資源科学部
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| 他の一覧 |
