The challenge of scaling methane fluxes in mangrove and mountain forests for an accurate methane budget

• Project/Area Number: 24K01797
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 40010:Forest science-related
• Research Institution: Kyoto University
• Principal Investigator: EPRON Daniel 京都大学, 農学研究科, 教授 (60844305)
• Co-Investigator(Kenkyū-buntansha): 諏訪 錬平 国立研究開発法人国際農林水産業研究センター, 林業領域, 主任研究員 (40535986) ; 浅川 晋 名古屋大学, 生命農学研究科, 教授 (50335014)
• Project Period (FY): 2024-04-01 – 2027-03-31
• Project Status: Granted (Fiscal Year 2024)
• Budget Amount: ¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000); Fiscal Year 2026: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2025: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2024: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
• Keywords: methane / mountain forest / mangrove forest

Outline of Research at the Start

The aim is to acquire new knowledge on CH4 fluxes from soil and trees in mountain and mangrove forests and scale them to the ecosystem level, taking up the challenge of the large spatio-temporal heterogeneity of these types of forest. The reason for choosing these two forest types is that they are both complex but differ significantly in terms of methane flux: methanogenesis dominates in mangrove sediments while methanotrophy dominates in upland soils. The source of methane emitted by the surface of the trunks is mostly exogenous for mangroves, mostly endogenous for trees in mountain forests.