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87年生ヒノキ人工林の生長と現存量
http://hdl.handle.net/2261/23167
http://hdl.handle.net/2261/2316719cf5687-ed3b-4791-bb12-f34fd700e9e0
名前 / ファイル | ライセンス | アクション |
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esrh082003.pdf (565.9 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 | 87年生ヒノキ人工林の生長と現存量 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | ヒノキ | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | 樹高生長 | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | 地上部現存量 | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | Chamaecyparis obtusa | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | Height growth | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | Biomass above the ground | |||||
主題Scheme | Other | |||||
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 | Growth and Biomass of an 87-year-old Manmade Chamaecyparis obtusa Stand | |||||
著者 |
丹下, 健
× 丹下, 健× 村川, 功雄 |
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著者別名 | ||||||
識別子 | 55163 | |||||
識別子Scheme | WEKO | |||||
姓名 | TANGE, Takeshi | |||||
著者別名 | ||||||
識別子 | 55164 | |||||
識別子Scheme | WEKO | |||||
姓名 | MURAKAWA, Isao | |||||
著者所属 | ||||||
著者所属 | 東京大学農学部附属演習林千葉演習林 | |||||
著者所属 | ||||||
著者所属 | University Forest in Chiba, Faculty of Agriculture, University of Tokyo | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 東京大学千葉演習林内の87年生ヒノキ人工林において,樹高生長経過および地上部部現存量を調べた。樹高には微地形の変化との対応がみられ,凹型斜面では,凸型斜面にくらべて10mちかく樹高が高い。凸型斜面での年樹高生長量は,植栽当初から87年生時まで20cm yr-1程度のほぼ一定した値であった。凹型斜面と微凹型急斜面での年樹高生長量は,10~20年生時に最大の時期があり,その後40~50年生ごろまで徐々に低下した。40~50年生以降の年樹高生長量は凹型斜面では20cm yr-1程度であるのに対し,微凹型急斜面では10cm yr-1程度と低かった。地上部各部分の現存量は,幹が171,枝が29,葉が14t ha-1であった。若い林分とくらべて枝はかなり多いが,葉は似た値である。 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Studies of height growth and biomass were made in an 87-year-old manmade Chamaecyparis obtusa stand in Tokyo University Forest in Chiba. The stem analysis was used to estimate sequential height growth. The biomass above the ground was estimated by dimension analysis. The tree height differed corresponding to changes in geographical features. Trees grown on concave slope were about 10m higher than ones on convex slope. The rate of annual height growth on convex slope was about 20cm・yr-1. The height growth on concave slope or steep slope reached a peak at 10- to 20-year-old and decreased gradually until 40- to 50-year-old. The rate of annual height growth after 40- to 50-year-old was about 20cm・yr-1 on concave slope and about 10cm・yr-1 on steep slope. The total biomass above the ground estimated was 214t・ha-1, i.e., 171 in stem, 29 in branch, and 14t・ha-1 in leaf. In comparison with younger stands, the branch biomass was larger, but the leaf one was not different apparently. | |||||
書誌情報 |
東京大学農学部演習林報告 巻 82, p. 103-112, 発行日 1990 |
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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 |