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[B-4.1 Estimation for Storage and Changes in Carbon Accumulated in Larch Ecosystems]

[Contact Person]

Matsuura, Yojiro
Senior Researcher
Forest Soil Laboratory, Hokkaido Research Center,
Forestry and Forest products Research Institute,
Ministry of Agr.,For.,and Fish.
7 Hitsujigaoka, Toyohira, Sapporo, 062-8516, Japan
Tel: +81-11-851-4131 ext.250, Fax: +81-11-851-4167
Email: orijoy@ffpri-hkd.affrc.go.jp

[Total Budget for FY1999-2000]

8,831,000 Yen (FY2000; 4,390,000 Yen)

[Abstract]

Carbon storage in aboveground and belowground biomass, soil organic carbon within 1-meter depth was estimated in a larch (Larix kaempferi) plantation located on Tomakomai Flux Tower Research Site, southwestern Hokkaido. C in aboveground biomass, belowground biomass, and soil were 33tonC/ha, 9tonC/ha, and 26tonC/ha, respectively. Soil organic carbon (SOC) storage in larch plantations on Andisol and Brown Forest soil region was also estimated. SOC accumulation rates based on years after volcanic eruption and SOC storage in soil profile were 0.910 and 0.10 tonC/ha/yr, respectively. Another research site for long-term CO₂ budget study was established in Hokkaido University Forest, located on northern Hokkaido.

[Key Words]

Larch forest ecosystem, Andisols, Brown forest soils, Soil organic carbon, Soil carbon accumulation rate