Collaborative Research: Geomorphodynamic Modulation of Biogeochemical Fluxes and Basin Stratigraphy of the Fly River

0742526为私人投资机构提供资金，用于开展多方面、多学科的研究，以了解巴布亚新几内亚Fly River的沉积物和有机物质通量。这项工作建立在PIS之前的研究基础上，这些PIS在飞河下游工作，以了解沉积物的输送和扩散，并在飞河三角洲和近海斜床中了解系统中的有机质埋藏。这项工作将检验三个相关的假设，所有这些都是边缘从源到汇倡议所宣称的目标：1)飞河在全球范围内运输、埋藏和固定大量的有机碳；1)河道和泛滥平原之间的沉积物交换过程调节生物地球化学通量，以及3)部分和全部河道撕裂作用控制着远端泛滥平原的沉积物和碳的积累。三个不同机构的实验室研究和建模工作也在计划中，还有对泛滥平原的实地调查和采样和取心。

0742526 GoniAbstract Funds are provided for the PIs to carry out a multi-faceted, multi-disciplinary research towards understanding sediment and organic matter fluxes in the Fly River, Papua New Guinea. The work builds on previous study by the PIs working in the lower reaches of the Fly River River to understand sediment delivery and dispersal, and in the Fly delta and offshore clinoform to understand organic matter burial in the system. The work will test three related hypotheses, all important as the stated goals of the MARGINS' source-to-sink initiative: 1) that the Fly River transports, buries and sequesters a globally significant amount of organic carbon; 1) sediment exchange processes between channels and floodplains modulate biogeochemical fluxes, and 3) partial and full channel avulsions govern sediment and carbon accumulation across the distal floodplain. Field surveys and sampling and coring of the floodplains is planned, as are lab studies and modeling efforts at three different institutions.