| Project/Area Number |
19580181
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
林学・森林工学
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| Research Institution | Forestry and Forest Products Research Institute |
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Principal Investigator |
YOSHINAGA Shuichiro Forestry and Forest Products Research Institute, 九州支所, 研究調整監 (10353913)
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| Co-Investigator(Kenkyū-buntansha) |
MORISADA Kazuhito 独立行政法人森林総合研究所, 温暖化対応推進拠点, チーム長 (70353886)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 森林生態・保護・保全 / 森林土壌 / 土壌炭素 / 蓄積速度 / 有機炭素 / クロノシークエンス / 火山噴出物 / 岩屑流堆積物 / 土壌生成 / 泥流堆積物 |
|---|
| Research Abstract |
Soil organic carbon stocks in forest soils derived from air-fall tephra deposits and debris avalanche deposits were studied to evaluate the recent soil carbon accumulation rate. The accumulation rates of soil derived from air-fall tephra deposits ranged from 0.01 to 0.05kgC m^<-2>y^<-1> and the rate of the soil derived from debris avalanche deposits ranged from 0.003 to 0.004kgC m^<-2>y^<-1>, respectively. The former rates were remarkably larger than the rates reviewed by Schlesinger(1990), which ranged from 0.001 to 0.01kgC m^<-2>y^<-1> at boreal, temperate and tropical forests. Difference of these accumulation rates between the soils was due to soil textures which strongly affected a plant invasion and forest regeneration ; the tephra deposits had finer soil texture than the debris avalanche deposits.
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