WEKO3
アイテム
スギの樹冠の変化量と幹材積成長量の関係
http://hdl.handle.net/10232/1603
http://hdl.handle.net/10232/1603682ebbcf-fcdb-4512-beb4-1dfd22c287f3
名前 / ファイル | ライセンス | アクション |
---|---|---|
![]() |
|
Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
---|---|---|---|---|---|---|---|---|
公開日 | 2015-06-04 | |||||||
タイトル | ||||||||
タイトル | スギの樹冠の変化量と幹材積成長量の関係 | |||||||
別言語のタイトル | ||||||||
その他のタイトル | Relationship between Growth of Stem-Volume and Increment of Crown-Volume in Cryptomeria japonica | |||||||
著者 |
吉田, 茂二郎
× 吉田, 茂二郎
|
|||||||
著者よみ | ||||||||
姓名 | ヨシダ, シゲジロウ | |||||||
別言語の著者 | ||||||||
姓名 | YOSHIDA, Shigejiro | |||||||
言語 | ||||||||
言語 | jpn | |||||||
資源タイプ | ||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
資源タイプ | departmental bulletin paper | |||||||
要約(Abstract) | ||||||||
内容記述タイプ | Other | |||||||
内容記述 | The aim of this study is to describe rightly and concisely the relationship between growth of stemvolume and increment of crown-volume in case of the individual tree belonging to evenaged Sugi (Cryptomeria japonica)-stand. The crown-form is expressed by parabolic shape. y=α・x^<0.5> wherey : radius of crown (m) x : distance from crown-top (m) α : expanding coefficient of crown-radius The increment of crown-volume is expressed by the following equation (Fig.1). ΔCV=π/2・Cl_2・ Cr_2^2+π/3・(k_2-k_1)・(Cr_2^2+Cr_2・Cr_1+Cr_1^2)-π/2・Cl_1・Cr_1^2 where ΔCV : increment of crown-volume (m^3) Cl : crown-length (m) Cr : radius of crown (m) k : height to living branch (m) ^* subscripts 1 and 2 denote the measurement points, respectively. The growth of stem-volume is calculated by using the stem-volume equation with dbh and tree height data, in two measurement points. The linear relation between growth of stem-volume and increment of crown-volume in Cryptomeria japonica-stand is recognized on each crown-length class. Investigation of the relationship between growth of stem-volume and increment of crown-volume has brought us such an equation as in the following : ΔV=-0.0241+0.0020・ΔCV+0.0087・Cl coefficient of determination R^2=0.80 standard error Se=0.009 (m^3) where ΔV : grouth of stem-volume (m^3) ΔCV : increment of crown-volume (m^3) Cl : crown-length (m) It is expected that growth of stem-volume is in right proportion to increment of crown-volume and to crown-length, respectively. Based on the above mentioned items, it is hoped that we shall be able to describe the growth of individual tree in evenaged Sugi-stand. | |||||||
収録雑誌名 |
鹿兒島大學農學部學術報告=Bulletin of the Faculty of Agriculture, Kagoshima University 巻 40, p. 29-35 |
|||||||
作成日 | ||||||||
日付 | 1990-03-15 | |||||||
ISSN | ||||||||
収録物識別子タイプ | ISSN | |||||||
ISSN | 04530845 | |||||||
NII書誌ID(雑誌) | ||||||||
収録物識別子タイプ | NCID | |||||||
NC ID | AN00040603 | |||||||
出版タイプ | ||||||||
出版タイプ | VoR | |||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
NDC | ||||||||
主題Scheme | NDC | |||||||
主題 | 610 | |||||||
NIIsubject | ||||||||
主題Scheme | Other | |||||||
主題 | 農学 | |||||||
公開者・出版者 | ||||||||
出版者 | 鹿児島大学 | |||||||
公開者よみ | ||||||||
公開者よみ | カゴシマ ダイガク | |||||||
公開者別名 | ||||||||
公開者別名 | Kagoshima University |