Senario to withdraw from Satoyama forest and plantation based on the risk assessment of abandonment

2016 Fiscal Year Final Research Report

• Project/Area Number: 24580034
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Horticulture/Landscape architecture
• Research Institution: Hokkaido University
• Principal Investigator: MORIMOTO Junko 北海道大学, 農学研究院, 准教授 (50338208)
• Project Period (FY): 2012-04-01 – 2017-03-31
• Keywords: 放置人工林 / 獣害 / 土地利用 / 安定同位体 / 風倒リスク / 食物利用割合

Outline of Final Research Achievements

We conducted the research for 1) Elucidating the actual situation of risks caused by abandonment of satoyama forests and artificial forests, 2) modeling risks and extracting high-risk areas, and 3) drawing a scenario of withdrawal from satoyama forest and artificial forest. As a result, 1) the windthow risk in artificial forests rises more greatly in places with high risk even in natural forests, 2) big male bear with large body sizes appear on low popularity agricultural land adjacent to the forest and use corn. 3) as a means to reduce both risks of artificial forests and satoyama forests, there is the conversion of artificial forests into mixed forest. Conversion of the old stands into mixed forests which is located on the protrusions on the slope is the most effective for reducing windthrow risks. We proposed other management methods for effective risk mitigation.

Free Research Field

生態系管理学