2005 Fiscal Year Final Research Report Summary
Global Carbon Circulation of Plant Cell Wall Components -Formation Mechanism of Fossil Resources-
| Project/Area Number |
15208031
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Boundary agriculture
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| Research Institution | The University of Tokyo |
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Principal Investigator |
HORI Keeko the University of Tokyo, Graduate School of Agricultural and Life Sciences, Assistant, 大学院・農学生命科学研究科, 助手 (40322044)
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| Co-Investigator(Kenkyū-buntansha) |
HOGETSU Taizo the University of Tokyo, Graduate School of Agricultural and Life Sciences, Professor, 大学院・農学生命科学研究科, 教授 (10107170)
KOJIMA Katsumi the University of Tokyo, Asian Natural Environmental Science Center, Professor, アジア生物資源環境研究センター, 教授 (80211895)
FUKUYO Yasuo the University of Tokyo, Asian Natural Environmental Science Center, Professor, アジア生物資源環境研究センター, 教授 (10165318)
MATSUMOTO Yuji the University of Tokyo, Graduate School of Agricultural and life Sciences, Associate Professor, 大学院・農学生命科学研究科, 助教授 (30183619)
IIYAMA Kenji the University of Tokyo, Asian Natural Environmental Science Center, Professor Emeritus, アジア生物資源環境研究センター, 名誉教授 (60012077)
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| Project Period (FY) |
2003 – 2005
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| Keywords | Tropical peat swamp / Dissolved organic carbon / Biological modification of lignin / Mechanism of water solubilization / Concentration of inorganics / Supercritical water reaction / Dynamics of dissolved organics / Formation mechanism of fossil resources |
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| Research Abstract |
Water samples and sediments at rivers, lakes and marshes were collected from tropical peat swamp in East Kalimantan of Indonesia, southern Thailand and Mekong Delta of Vietnam, dissolved organic carbon, particulate organic matters and inorganic ions were analyzed at regular intervals from December 2003 to November 2005. Sampling sites were decided by on site inspections based on information from GPS data and aerial photographs. Huge amounts of swamp water to be examined structural characteristics of dissolved organic matters were collected from the peat swamp at Ishikari-riber basin, Bibai-city, Hokkaido, because of the problems on political security at southern Thailand. Peat samples were also collected from various depths using a core sampler at Bacho swamp in southern Thailand. Chemical characteristics of peat samples were analyzed and biological modification of plant cell wall components and mechanism of water solubilization of them were discussed. Plant cell walls were subjected i
… More
n reactions under sub-critical and super-critical water conditions to investigate dynamics to be fossil resources. The production of huge numbers of hydrocarbons and aromatic compounds, which are compatible with the composition of crude petroleum, were detected in the reaction products.
1.The procedures for separation, qualitative and quantitative analyses were established using water and peat samples collected from tropical peat swamps.
2.Dynamics of soil, water-soluble and particulate organic materials were discussed based on data from on-site investigation and laboratory works. It was confirmed that the origin of brown colored water flow-out from peat swamp was water-soluble lignin, which was remarkably modified by microorganisms. From To Daeng primary peat swamp (8,800 ha), more than 35,000tC yr-1 of lignin were discharged in rivers.
3.It was confirmed that dissolved organic matter from peat swamp was easily formed chelates with metal ions, and accumulated as sediments.
In addition, accumulation and dynamics of organic matter in degraded area such as desert and alkaline soil were also investigated. Less
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[Journal Article] Allometric equations for pioneer tree species and estimation of the aboveground biomass of a tropical secondary forest in East Kalimantan,2004
Author(s)
Hashimoto, T., Tange, T., Masumori, M., Yagi, H., Sasaki, S., Kojima, K.
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Journal Title
Tropics 14
Pages: 123-130
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Effects of controlled-release fertilizer on growth and ectomycorrhizal colonization of pot-grown seedlings of the dipterocarp Dryobalanops lanceolata in a tropical nursery.2004
Author(s)
Irino, K.O., Iba, Y., Ishizuka, S., Kenzo, T., Ripot, S., Kendawang, J.J., Miyashita, N., Nara, K., Hogetsu, T, Ninomiya, I., Iwasaki, K., Sakurai, K.
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Journal Title
Soil Science and Plant Nutrition 50
Pages: 747-753
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Proof of the presence of guaiacyl-syringyl lignin in Selaginella tamariscina2004
Author(s)
Jin, Z., Matsumoto, Y., Tange, T., Akiyama, T., Higuchi, H., Ishii, T., Iiyama, K.
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Journal Title
Journal of Wood Science 51
Pages: 424-426
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Allometric equations for pioneer tree species and estimation of the aboveground biomass of a tropical secondary forest in East Kalimantan.2004
Author(s)
Hashimoto, T., Tange, T., Masumori, M., Yagi, H., Sasaki, S., Kojima, K.
-
Journal Title
Tropics 14
Pages: 123-130
Description
「研究成果報告書概要(欧文)」より
-
[Journal Article] Effects of controlled-release fertilizer on growth and ectomycorrhizal colonization of pot-grown seedlings of the dipterocarp Dryobalanops lanceolata in a tropical nursery.2004
Author(s)
Irino, K.O., Iba, Y., Ishizuka, S., Kenzo, T., Ripot, S., Kendawang, J.J., Miyashita, N., Nara, K., Hogetsu, T., Ninomiya, I., Iwasaki, K., Sakurai, K.
-
Journal Title
Soil Science and Plant Nutrition 50
Pages: 747-753
Description
「研究成果報告書概要(欧文)」より
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