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Global Carbon Circulation of Plant Cell Wall Components -Formation Mechanism of Fossil Resources-

植物细胞壁成分的全球碳循环-化石资源的形成机制-

基本信息

批准号：
15208031
负责人：
HORI Keeko
金额：
$ 32.95万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15208031/
关键词：
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

项目摘要

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

2003年12月至2005年11月，在印度尼西亚东加里曼丹、泰国南部和越南湄公河三角洲的热带泥炭沼泽采集了河流、湖泊和沼泽的水样和沉积物，定期进行了溶解有机碳、颗粒状有机物和无机离子的分析。根据GPS数据和航空照片的信息，通过现场检查确定了抽样地点。由于泰国南部政治安全的问题，从北海道毕拜市石卡里-里伯尔盆地的泥炭沼泽中采集了大量待检测的沼泽水溶解有机物的结构特征。泰国南部巴乔沼泽的泥炭样本也是用岩心采样器从不同深度采集的。分析了泥炭样品的化学性质，探讨了植物细胞壁组分的生物改性及其增水机理。植物细胞壁受到…的影响在亚临界和超临界水条件下进行更多的n反应，以研究化石资源的动力学。在反应产物中检测到大量与原油组成相适应的碳氢化合物和芳香族化合物的产生。1.建立了热带泥炭沼泽水样和泥炭样品的分离、定性和定量分析程序。2.根据现场调查和实验室工作的数据，讨论了土壤、水溶性和颗粒有机物的动力学。结果表明，泥炭沼泽褐色水的来源为水溶性木质素，微生物对其有明显的改性作用。从到大坑原生泥炭沼泽(8800公顷)，超过35000tCyr-1的木质素排放到河流中。3.证实泥炭沼泽中的溶解有机质容易与金属离子形成络合物，并作为沉积物积累。此外，还研究了荒漠和碱性土壤等退化地区有机质的积累和动态。较少