Biogeochemistry of the Amazon River: A Basin-wide Perspective

亚马逊河的生物地球化学：全流域视角

• 批准号: 9815912
• 负责人: Jeffrey Richey
• 金额: $ 27.5万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-11-01 至 2001-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9815912&HistoricalAwards=false
• 关键词: Biogeochemistry; Amazon; River; Basin; wide

Abstract98-15912RicheyBiogeochemistry of the Amazon River: A Basin-wide perspectiveThis research effort focuses on synthesis of existing information on biogeochemical processes in the Amazon basin. Specifically, the investigators intend to lay the foundations of what may be the first biogeochemical river model based on state concepts of how river systems work, with an emphasis on using parameters that can actually be measured. The foundation of the model is a great deal of empirical work carried out by the PIs and others in the Amazon and other large river basins. Once the model modules are in place (basin structure, biogeochemical reactions and cycles, sediment transport, hydrology), the next level of synthesis is possible. The investigators will focus on how certain processes may control the co-evolution of dissolved nutrients, dissolved gases, and particulate and dissolved organic materials as they are transported from land and downstream. Ultimately, the team intends to test the model in other river basins, targeting southeast Asia (Mekong basin) and the Pacific Northwest U.S. (Puget Sound environs).

亚马逊河丰富的生物地球化学：一个全流域的视角本研究的重点是综合亚马逊河流域生物地球化学过程的现有信息。具体地说，研究人员打算为可能是第一个基于河流系统如何工作的国家概念的生物地球化学河流模型奠定基础，重点是使用实际可以测量的参数。该模型的基础是由PIs和其他人在亚马逊和其他大型河流流域开展的大量实证工作。一旦模型模块就位(盆地结构、生物地球化学反应和循环、沉积物输送、水文学)，就有可能进行下一级的合成。研究人员将重点研究某些过程如何控制溶解的营养物质、溶解的气体以及颗粒和溶解的有机物质从陆地和下游运输时的共同进化。最终，该团队打算在其他河流流域测试该模型，目标是东南亚(湄公河流域)和美国太平洋西北部(普吉特湾周围地区)。