Effects of transported wildfire smoke and permafrost melting on both nutrient cycle and ozone emission by notthern boreal forest

2015 Fiscal Year Final Research Report

• Project/Area Number: 26550100
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Design and evaluation of sustainable and environmental conscious system
• Research Institution: Osaka Prefecture University
• Principal Investigator: Harazono Yoshinobu 大阪府立大学, 生命環境科学研究科(系), 客員研究員 (90137240)
• Research Collaborator: NAGANO Hirohiko アラスカ大学, 国際北極圏研究センター, ポスドク研究員 (40758918)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 北方林 / 森林火災 / 火災煙の移流 / 微量栄養塩 / 永久凍土 / クロトウヒ林

Outline of Final Research Achievements

Aerosol deposition caused by wildfire has important roles on nutrient cycle at boreal forest. Increment of wildfire in relation to global warming might enhance the growth and C-budget at boreal forests. We revealed the wildfire effect by dry-deposition observation and model improves.
Observations were held at flux tower at UAF’s campus with multi-layer filtering system. Filter sampling was conducted in 2014 season and the chemical analyses and trajectory analysis by satellite data were examined in 2015. Deposition of trace element increased when wildfire-smoke reached the site, and it is too low concentration of aerosol to reveal regular depositions regularly.

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