| Project/Area Number |
20380095
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Forest science
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| Research Institution | Forestry and Forest Products Research Institute |
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Principal Investigator |
ISHIZUKA Shigehiro Forestry and Forest Products Research Institute, 九州支所, グループ長 (30353577)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAI Yoshimi 独立行政法人森林総合研究所, 立地環境研究領域, 主任研究員 (40353700)
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| Project Period (FY) |
2008 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2009: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2008: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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| Keywords | 地球温暖化 / 枯死木 / 京都議定書 / リグニン / ホロセルロース / 近赤外分光法 / アルカリ抽出成分 / 近赤外分光光度計 |
|---|
| Research Abstract |
To improve the accuracy of the estimation of the carbon stock in deadwood pool, which is obligatory accounting for Kyoto Protocol under United Nation Framework Convention on Climate Change, we developed the quantifying method to measure the lignin and holocellulose content using near-infrared spectroscopy. To adapt this method for the samples which had been previously gathered from north to south in Japan, we have obtained deadwood database with the information about climate, years after death, density of wood, lignin, and holocellulose content. According to this database, the decomposition rate of lignin does not remarkably differ from that of holocellulose. The alkali-extractable component does not markedly increase with the increase in the years after death, indicating that the white rot type is more frequent in the decay of dead wood in Japanese coniferous species. Using these results, we constructed the in-situ decay model of dead wood in light of rotting type.
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