Multilateral analyses of biodiversity in retention harvesting stands based on environmental DNA

• Project/Area Number: 16K18715
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Forest science
• Research Institution: Forest Research and Management Organization (2018); Yokohama National University (2016-2017)
• Principal Investigator: Tatsumi Shinichi 国立研究開発法人森林研究・整備機構, 森林総合研究所, 研究員 (40773437)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 森林 / 生物多様性 / 林業 / 菌類 / 植物 / 生態系管理 / 微生物 / 森林管理 / 林学

Outline of Final Research Achievements

Retention forestry, in which trees are left unlogged at harvesting events in order to conserve biodiversity in production forests, has recently received social concerns. In this study, we investigated the effects of retention forestry on biodiversity.
We found larger number of species in retention stands than in unharvested stands. We also found that post-harvesting plant succession is largely driven by competition among neighboring individuals.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は、保残伐施業をはじめとする林業活動を行ったときに、森林に住む生物がどのように反応するかを理解・予測するのに役立つ。これまで我が国では、主に森林景観内に一定面積の保護林を区分け（ゾーニング）することによって、生物多様性の保全に配慮してきた。これに対し、保残伐施業は同じ場所で木材生産と生物多様性保全を両立させることを目指す新しい施業方法であり、本研究で得られた成果はその発展に寄与すると期待される。

Research Products

• [Int'l Joint Research] 東フィンランド大学(フィンランド)
• [Int'l Joint Research] スウェーデン農科大学(スウェーデン)
• [Journal Article] Individual-based models of community assembly: Neighbourhood competition drives phylogenetic community structure (2019)
  • Author(s): Tatsumi Shinichi、Cadotte Marc W.、Mori Akira S.
  • Journal Title: Journal of Ecology Volume: 107 Issue: 2 Pages: 735-746
  • DOI: 10.1111/1365-2745.13074
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Reassembly of soil fungal communities under plant diversity restoration (2018)
  • Author(s): 辰巳晋一、松岡俊将、藤井佐織、小林真、大園享司、Forest Isbell、森章
  • Organizer: 第65回日本生態学会大会
• [Presentation] 保残伐と火入れによる林床植生の群集集合則変化 (2017)
  • Author(s): 辰巳晋一、Joachim Strengbom、Jari Kouki、森章
  • Organizer: 日本生態学会第64回全国大会
  • Place of Presentation: 東京
  • Year and Date: 2017-03-16
• [Presentation] Reassembly of soil fungal communities under reforestation and deer exclusion (2017)
  • Author(s): 辰巳晋一、松岡俊将、藤井佐織、小林真、大園享司、Forest Isbell、森章
  • Organizer: 第102回アメリカ生態学会大会
  • Int'l Joint Research