Influence of forest management on surface flow over forest floor and sediment discharge into the stream

2014 Fiscal Year Final Research Report

• Project/Area Number: 24658135
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Forest science
• Research Institution: Mie University
• Principal Investigator: NUMAMOTO Shinya 三重大学, 生物資源学研究科, 准教授 (60324555)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 人工林施業 / 表面流 / 侵食土砂量

Outline of Final Research Achievements

Through the forest management such as thinning, effects of the coverage by litter on the forest floor to the water movement and sediment discharge process were investigated in mountainous slope covered by coniferous forest in Japan. Observed rainfall and surface runoff events showed quick discharge process on the forest floor surface layer. And relation of seasonal change of organic matter content and litter on the forest floor were measured. Those materials are able to become effective prevention of soil and sediment discharge. To consider sediment discharge from mountainous stream, the treatment of litter coverage must by a important factor.

Free Research Field

治山砂防学