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タイトルヨミ
タクバツ ホウシキ ニヨル シラカシ シンタンリン ノ セイサン キコウ ニ カンスル ケンキュウ ダイ7ホウ シモヤマサ コテイ シケンチ ノ ダイ3 ケイリキ ニオケル セイチョウ
タイトル別表記
Studies on the Productive Structure of "Shirakashi" (Cyclobalanopsis Myrsinaefolia OERST.) Coppice-Forest Managed by Selection Method(7) : On the Growth in Third Circulation-Period at the Shimoyamasa Permanent Plot
ファイル
言語
日本語
著者
安井 鈞
藤江 勲
内容記述(抄録等)
Since 1959, Authors have studied a production structure of Shirakashi coppice forest by inventory data of permanent plot at Shimoyamasa, Hirose cho, Shimane Prefecture.
This paper reports change of forest structure, volume increment and increment of stem dry weight of this stand in the third cutting cycle.
1. After selection cutting in 1965, the sprouts shot from almost all stamps, and the regeneration succeed.
The change process of the structure of this stand were shown in Table 3 by statistical analysis of diameter distribution.
2. The current annual volume increment of this stand amount to 15.7m^3 per ha (rate of increment was about 21.6%).
The remaining trees above medium class (D. b. h. 7 cm and over) have produced the major part (approximately 65%) of the total increment.
The annual yield in the 3 circulation-periods was 12.3m^3 per ha.
3. The biomass were estimated by sample trees, and the current annual dry weight of stem at the cutting cycle amount to 11.6 ton per ha (rate of increment was about 22.5%).
掲載誌名
島根大学農学部研究報告
4
開始ページ
85
終了ページ
92
ISSN
0370940X
発行日
1970-12-15
NCID
AN00108015
出版者
島根大学農学部
出版者別表記
Shimane University, Faculty of Agriculture
資料タイプ
紀要論文
部局
生物資源科学部
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