Dissertation Research: Carbon Dynamics in Detritus-Based Systems: Can Cave Streams Be Used to Understand Energy Flow In Surface Streams?

论文研究：基于碎屑的系统中的碳动力学：洞穴流可以用来理解地表流中的能量流吗？

• 批准号: 9801082
• 负责人: Ernest Benfield
• 金额: $ 0.65万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-05-01 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9801082&HistoricalAwards=false
• 关键词: Dissertation; Research; Carbon; Dynamics; Detritus

98-01082 Benfield/Simon DDIG: Carbon dynamics in detritus-based systems: Can cave streams be used to understand energy flow in surface streams Stream ecosystems rely on both aquatic plants and organic matter from terrestrial plants-leaves, wood-for energy. The complex interaction between these two energy sources makes stream food webs difficult to study. This project will use cave streams as surrogates for surface streams to better understand organic matter use in stream food webs. Because cave streams rely exclusively on terrestrial organic matter for energy (there is no light in caves for green-plant photosynthesis) the roles of various organic matter types can be more easily examined. The PIs will determine the importance of particulate and dissolved organic matter in stream food webs by comparing energy processes in multiple cave streams with and without particulate organic matter input. Specifically, the investigators will examine the effects of leaf and wood input on particulate and dissolved organic matter availability, transport, transformation, and use in stream food webs.

98-01082 Benfield/Simon DDIG：基于碎屑的系统中的碳动力学：能否利用洞穴溪流来了解地表溪流中的能量流溪流生态系统依赖于水生植物和来自陆地植物（叶子、木材）的有机物质来获取能量。 这两种能源之间复杂的相互作用使得溪流食物网难以研究。 该项目将使用洞穴溪流作为地表溪流的替代品，以更好地了解溪流食物网中有机物质的利用。 由于洞穴溪流完全依赖陆地有机物获取能量（洞穴中没有光线进行绿色植物的光合作用），因此可以更容易地检查各种有机物类型的作用。 PI将通过比较多个洞穴溪流中有和没有颗粒有机物输入的能量过程来确定溪流食物网中颗粒物和溶解有机物的重要性。 具体来说，研究人员将研究树叶和木材的输入对河流食物网中颗粒物和溶解有机物的可用性、运输、转化和使用的影响。