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北海道演習林トドマツ立木幹材積表の調整
http://hdl.handle.net/2261/23085
http://hdl.handle.net/2261/23085296dd246-c571-4d4e-9e27-a7a5f19a172f
名前 / ファイル | ライセンス | アクション |
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esrh074003.pdf (911.4 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2014-09-03 | |||||
タイトル | ||||||
タイトル | 北海道演習林トドマツ立木幹材積表の調整 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
その他のタイトル | ||||||
その他のタイトル | A Preparation of the Volume Table for Saghalien Fir (Abies sachalinensis) Trees of the University Forest in Hokkaido | |||||
著者 |
前沢, 完次郎
× 前沢, 完次郎× 河原, 漠 |
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著者別名 | ||||||
識別子 | 55571 | |||||
識別子Scheme | WEKO | |||||
姓名 | MAEZAWA, Kanjiro | |||||
著者別名 | ||||||
識別子 | 55572 | |||||
識別子Scheme | WEKO | |||||
姓名 | KAWAHARA, Shigeru | |||||
著者所属 | ||||||
著者所属 | 東京大学農学部演習林本部 | |||||
著者所属 | ||||||
著者所属 | 東京大学農学部北海道演習林 | |||||
著者所属 | ||||||
著者所属 | Administration Office of the University Forests, Faculty of Agriculture, University of Tokyo | |||||
著者所属 | ||||||
著者所属 | University Forest in Hokkaido, Faculty of Agriculture, University of Tokyo | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 1.北海道演習林におけるトドマツ立木幹材積表を調製した。1.変数および2変数のふたとおりの場合を考えたが,それぞれの場合について求められた回帰式は次のとおりである。log v=-3.7789+2.4437 log d log v=-4.3079+1.8214 log d+1.1228 log hここに,vは幹材積(m3),dは胸高直径(cm)(地上1.3m),hは樹高(m)を示す。2.上記の2式にもとづいて調製された材積表は,表-4,表-5のとおりである。一般に,材積値は材積表のなかでは一様に示されているが,回帰推定のうえからは,それぞれが精度のちがいをもっている。表-4および表-5においては,その精度との関連において材積値が示されている。 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In this paper, the cubic meter volume tables as shown in Tables 4 and 5 are presented for Saghalien fir (Abies sachalinesis) trees of the University Forest in Hokkaido. Tables 4 and 5 are the volum tables (a) with a single variable and (b) with two variables, respectively. The volume equations regarding those two tables are given as follows: (a) log v=-3.7789+2.4437 log d, (b) log v=-4.3079+1.8214 log d+1.1228 log h, where v=stem volume in cubic meter, d=diameter at breast height (1.3m) outside bark in centimeter, and h=tree height in meter. Generally the values of volume are shown evenly in volume tables. However, different precision is given to those values individually, as far as the theory of regression estimation is concerned. The relation between the precision and the elements of data is examined in those tables. | |||||
書誌情報 |
東京大学農学部演習林報告 巻 74, p. 17-37, 発行日 1986 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03716007 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00162451 | |||||
日本十進分類法 | ||||||
主題 | 610 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | 東京大学大学院農学生命科学研究科附属演習林 | |||||
出版者別名 | ||||||
The Tokyo University Forests |