COLLABORATIVE RESEARCH: Hydrological linkages between landscapes and streams: Transferring reach and plot scale understanding to the network and catchment scales

合作研究：景观和溪流之间的水文联系：将范围和地块尺度的理解转移到网络和流域尺度

• 批准号: 0337650
• 负责人: Brian McGlynn
• 金额: --
• 依托单位: Montana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-04-01 至 2009-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0337650&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Hydrological; linkages; between

0337650McGlynnHow can plot-scale measurements of the hydrologic processes that link hillslopes to riparian areas be scaled up to whole catchments? How can reach-scale measurements of groundwater-surface water mixing in riparian and hyporheic zones be scaled up to entire stream networks? How can we transfer our small-catchment scale understanding to larger portions of the landscape or other catchments? What is the nature of hydrologic process scaling? These questions highlight our current inability to scale-up understanding of hydrological processes studied at the plot or reach scale to larger catchments. Answering them requires integrated, multi-scale approaches that combine landscape-level topographic analysis, process-based field investigations, and catchment-scale integration to identify the factors controlling the hydrologic connectivity between source areas generating runoff and the flow paths that link source areas to streams. This research will combine novel landscape and topographic analysis techniques with plot and reach-scale field research to provide context for field investigations, to develop a method for scaling process understanding to the catchment scale, and ultimately to transfer this understanding to other catchments for comparison and catchment classification. Three primary methods will be used: (1) landscape analysis to elucidate catchment scale patterns and organization and as a method to scale-up process study results to the landscape scale, (2) hillslope-riparian plot scale studies to determine first-order controls on connections and disconnections among dominant landscape units, and (3) reach scale process studies on stream-hyporheic zone dynamics to determine landscape controls on exchange and in-stream transport. Landscape analysis will then be used to link internal catchment dynamics to catchment outlet observations. Comprehensive uncertainty analysis of field tracers and landscape data will be incorporated into empirical and landscape analysis modeling. We will compare results of these empirical approaches to theoretical hydrologic and geomorphologic scaling relationships.The intellectual merit of this research will be manifested in the development and application of a method for linking process scale studies to the catchment and landscape scales. The broader impacts include graduate and undergraduate student involvement from study design through data collection, analysis, and presentation. Teacher training and linkages between research and K-12 education and the general public will be made through collaboration with the Big Sky Institute (BSI) for Science and Natural History and through the BSI Society and Science Graduate Fellows Program. In addition, this research will result in widely available landscape analysis software and a methodology for linking field measurements to the landscape scale. This will provide critical site context to inform stream and watershed restoration projects undertaken by federal and state land management and consulting agencies throughout the intermountain west and beyond.

0337650 McGlynn如何将连接山坡和河岸区域的水文过程的地块尺度测量扩展到整个集水区？如何将河岸带和潜流带地下水-地表水混合的可达尺度测量扩大到整个水系？ 我们如何将我们对小流域尺度的理解转移到更大的景观或其他流域？ 水文过程定标的本质是什么？ 这些问题突出表明，我们目前无法扩大对水文过程的理解，研究在情节或达到规模更大的集水区。 对它们的分析需要综合的、多尺度的方法，结合联合收割机的地形分析、基于过程的实地调查和流域尺度的综合，以确定控制产生径流的源区和连接源区与溪流的流动路径之间的水文连通性的因素。这项研究将联合收割机新的景观和地形分析技术与情节和达到规模的实地研究，提供现场调查的背景下，开发一种方法，缩放过程的理解，以流域规模，并最终将这种理解转移到其他流域进行比较和流域分类。 将使用三种主要方法：（1）景观分析，以阐明集水区规模模式和组织，并作为将过程研究结果按比例放大到景观规模的方法，（2）山坡-河岸地块规模研究，以确定主要景观单元之间连接和断开的一级控制，以及（3）河流-潜流带动力学的河段尺度过程研究，以确定交换和流内输送的景观控制。 景观分析，然后将用于连接内部集水动态集水出口观测。 实地示踪剂和景观数据的全面不确定性分析将纳入经验和景观分析建模。我们将比较这些经验方法的结果，理论水文和地貌的比例关系。这项研究的智力价值将体现在开发和应用的方法，将过程规模的研究，流域和景观规模。更广泛的影响包括研究生和本科生参与研究设计，通过数据收集，分析和演示。 教师培训以及研究和K-12教育与公众之间的联系将通过与大天空研究所（BSI）科学和自然历史的合作以及通过BSI社会和科学研究生奖学金计划进行。 此外，这项研究将导致广泛使用的景观分析软件和一种方法，将实地测量的景观规模。 这将提供关键的现场环境，为联邦和州土地管理和咨询机构在整个山间西部及以外地区开展的溪流和流域恢复项目提供信息。