Studies on the Operation-system of an Abies and Tsuga Forest at Kirishima, southeast Janan (IV) : Change of the light condition and height growth of Abies and Tsuga saplings in the selection forest - Collections | Kyushu University Library

＜departmental bulletin paper＞
Studies on the Operation-system of an Abies and Tsuga Forest at Kirishima, southeast Janan (IV) : Change of the light condition and height growth of Abies and Tsuga saplings in the selection forest

Creator	Creator Name 西園, 朋広 Nishizono, Tomohiro Affiliation Affiliation Name 森林総合研究所 \| 九州大学大学院農学研究院森林資源科学部門 Forestry and Forest Products Research Institute \| Laboratory of Forest Management, Division of Forest Environment and Management Science, Department of Forest and Forest Product Science, Faculty of Agriculture, Kyushu University
	Creator Name 神薗, 博明 Kamizono, Hiroaki Affiliation Affiliation Name 林業土木コンサルタンツ \| 九州大学大学院農学研究院森林資源科学部門 For. Civil Eng. Consultants \| Laboratory of Forest Management, Division of Forest Environment and Management Science, Department of Forest and Forest Product Science, Faculty of Agriculture, Kyushu University
	Author PID K002249 Creator Name 吉田, 茂二郎 Yoshida, Shigejiro Affiliation Affiliation Name 九州大学大学院農学研究院森林資源科学部門 Laboratory of Forest Management, Division of Forest Environment and Management Science, Department of Forest and Forest Product Science, Faculty of Agriculture, Kyushu University
	Creator Name 今田, 盛生 Imada, Morio Affiliation Affiliation Name 九州大学大学院農学研究院森林資源科学部門 Laboratory of Forest Management, Division of Forest Environment and Management Science, Department of Forest and Forest Product Science, Faculty of Agriculture, Kyushu University
Language	Japanese
Publisher	九州大学大学院農学研究院
Publisher	Faculty of Agriculture, Kyushu University
Date	2001-02
Source Title	Science bulletin of the Faculty of Agriculture, Kyushu University
Vol	55
Issue	2
First Page	149
Last Page	159
Publication Type	Version of Record
Access Rights	open access
JaLC DOI	https://doi.org/10.15017/21076

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PISSN	1347-0159
NCID	AA11577672
Record ID	21076
Peer-Reviewed	Unrefereed
Subject Terms	モミ
	ツガ
	稚樹
	霧島山系
	伸長成長
	択伐林
	光環境
	相対照度
Notes	Changes in relative illuminance and height growth-relative illuminance relationship for Abies and Tsuga saplings after selective cutting in an Abies and Tsuga natural forest were studied at Kirishima, southeast Japan. The results obtained were as follows. (1) Relative illuminance decreased from 21.4% to 14.3% during a 7-years period afler selective culting. (2) Height growth of Tsuga saplings increased with relative illuminance, whereas that of Abies was not. (3) Height growth of Abies saplings in the selective cutting forest were larger than that in the closed forest. From these results, it is suggested that the maintenance and improveinent of light condition within a forest by artifical silvicultural regimes are necessary to grow regenerated trees in an Abies and Tsuga natural forest.
Notes	霧島山系のモミ・ツガ天然林を対象として択伐作業後における相対照度の変化, および相対照度とモミ・ツガ椎樹の成戌との関係について検討した. その結果, 以下のことが明らかになった. （1）択伐後7年の間に相対照度は21.4％から14.3％へと低下した. （2）相対照度が高いほど, ツガ稚樹の伸長成長量は大きかったが, モミ稚樹ではこのような傾向は認められなかった. (3）閉鎖林内におけるモミ椎樹の慎重成長量は択伐林内におけるそれよりも小さかった. 以上の結果より, モミ・ツガ天然林において, モミ・ツガの後継樹を育成していくためには, 積極的な人為の導入によって林内光環境の維持・改善を図る必要があると考えられた.
Created Date	2012.07.26
Modified Date	2022.11.11