亜熱帯里山林における天然更新の遷移機構と特性

亚热带里山森林自然更新的转变机制及特征

• 批准号: 02F00514
• 负责人: 新里 孝和
• 金额: $ 0.96万
• 依托单位: University of the Ryukyus
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02F00514/
• 关键词: 亜熱帯里山林; 天然更新; 萌芽更新; 皆伐林形; 択伐林形; 帯状伐林形; 生物多様性; 維持機構

西表実験所・森林回復実験林の毎木調査と植生調査を行った。研究林分の択伐施業林、帯状伐施業林、西表実験林のデータベースを作成した。中国・湖南省、雲南省の天然更新、里山林に関する資料収集と現地踏査を行った。調査結果]1.沖縄島北部照葉樹林の択伐施業林における根株の腐朽と生存状態、残存木の生育状態について、類型化による解析結果をまとめた。根株の腐朽状態はDBH、樹種及び生活形による違いがみられた。皆伐施業林と同様に、根株の腐朽と枯死率は経過年に伴って増大する傾向を示した。残存木の生育状態についても、7類型化によりDBH、樹種及び生活形の間で明らかな差異がみられた。これらの結果は"Decay of stumps and surviving state of residual trees 8 years post-selective logging in subtropical laurel forest in Okinawa, Japan"として論文発表した。2.皆伐施業林における萌芽個体と実生個体について解析した。立木本数は萌芽個体と実生個体ともほぼ同数であった。実生個体では6優占種がL型分布を示し、萌芽個体では5優占種ともL型分布ではなく樹高3-4mあるいは2-3mでピークを示したが、これは空間競争によると考察された。イタジイの基底面積は全ての種で優占した。これらの結果は"Stand structure 5 years after clear-cutting for a natural subtropical evergreen broad-leaved forest in northern Okinawa, Japan"として学会発表(日本林学会九州支部)し、論文印刷中(九州森林研究)である。3.西表実験林(伐採18年後)のデータベースを解析、論文執筆中である。

In the west table, the forest is back to the forest, the trees are planted and the plants are planted. In the study, the forest was cut down, the forest was cut in the shape of the tree, and the forest in the western table. Natural Renewal of Hunan Province and Yunnan Province of China, and the data collection of forest and forest in Lishan, China. Results] 1. In the northern part of the forest, the survival status of rotting roots, the growth status of residual trees, and the results of type analysis were analyzed. The rotting state of the root plant is DBH, and the living forms of the plant are different from each other. The mortality rate of root rot and root rot in clear-cutting forest was the same as that in clear-cutting forest, and the mortality rate of root rot in clear-cutting forest was the same as that in the same forest. Remnant tree growth status test, 7-type model DBH, variety and life style test show that the difference is different. The results show that "Decay of stumps and surviving state of residual trees 8 years post-selective logging in subtropical laurel forest in Okinawa, Japan" is related to the text table. two。 The sprouting and sprouting of tree tree in clear-cutting forest were analyzed. The number of trees is the same as the number of trees. There is an indication of the distribution of the L-type of the plant, the distribution of the L-type of the budding, the height of 3-4 m, the height of 2-3 m, and the space competition in the air. The base surface is full and occupied. Results: Stand structure 5 years after clear-cutting for a natural subtropical evergreen broad-leaved forest in northern Okinawa, Japan (Kyushu Branch of Japan Forestry Association) and in printing (Kyushu Forest Research). 3. Western table forest (after 18 years of felling) is in the process of analyzing and implementing the text.

项目成果

Lichao WU, Takakazu SHINZATO: "Stand structure 5 years after clear-cutting for a natural subtropical evergreen broad-leaved forest in northern Okinawa, Japan"Kyushu Journal of Forest Research. 57. (2004)

Lichao WU、Takakazu Shinzato：“日本冲绳北部天然亚热带常绿阔叶林砍伐后五年的林分结构”《九州森林研究杂志》。

Lichao WU, Takakazu SHINZATO: "Decay of stumps and surviving state of residual trees 8 years post-selective logging in subtropical laurel forest in Okinawa, Japan"Science Bulletin of the Faculty of Agriculture, University of the Ryukyus. 50. 185-194 (2003

Lichao WU、Takakazu Shinzato：“日本冲绳亚热带月桂林选择性采伐后 8 年后树桩的腐烂和残留树木的存活状态”琉球大学农学院科学通报。