| “水资源域”概念在美国五大湖的应用(英文) |
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| 引用本文： | 贺缠生.“水资源域”概念在美国五大湖的应用(英文)[J].资源与生态学报（英文版）,2010,1(1):25-30. |
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| 作者姓名： | 贺缠生 |
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| 作者单位： | 1. 美国西密歇根大学地理系,密歇根州,MI 49008-5424,美国;中国科学院地理科学与资源研究所,北京,100101
2. 大湖区环境研究实验室,密歇根州,MI 48108-9719,美国 |
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| 基金项目： | support by NOAA Center for Sponsored Coastal Ocean Research is appreciated |
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| 摘 要： | "水资源域"为在某一时段向河口或某一地点,传送水、水中营养物、泥沙或其它物质的空间范围。这一新概念与"流域"概念既相似又不同:1)流域边界以地貌特征来确定,相对稳定。而水资源域的边界以水文事件中的水和物质传播范围来确定,随时空而变化;2)流域强调给定空间范围内水和物质的时间分布,而水资源域强调水和物质随时间和空间二者相互变化的动态分布;3)水资源域综合考虑了不同尺度的时空即时变化对水资源及物质传播的影响。这一新概念应用遥感、空间分析、追踪及模拟技术分析流域空间模式与过程,为水资源探索、分析、模拟及预测提供了一种全新的方法与途径。该文以美国伊利湖茅密河为例,应用分布式大流域模型计算了水资源域的分布。
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| 关 键 词： | 水资源域 径流 分布式大流域模型 伊利湖 |
Hydrologic Resource Sheds and the U.S.Great Lakes Applications |
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| Institution: | HE Chansheng(1,2) and Thomas E.Croley II3 1.Department of Geography,Western Michigan University,3234 Wood Hall,Kalamazoo,MI 49008-5424,U.S.A.; 2.Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China; 3.Great Lakes Environmental Research Laboratory,4840 S.State Rd.,Ann Arbor,MI 48108-9719,U.S.A. |
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| Abstract: | "Hydrological resource shed" is defined as a geographic area that contributes material (e.g.water, nutrients, and sediments) over one time interval, passing through a location of interest over another time interval. While similar to the concept of watershed, this relatively new concept has some unique features. First, the boundary of a watershed is delineated by topography and relatively more stable. The boundary of a hydrologic resource shedl however, is delineated by the contributing sources of water and materials to a river or lake during hydrologic events, and changes over both space and time. Second, the concept of watershed emphasizes temporal distribution of water and materials within a given space, and the hydrologic resource shed focuses on both temporal and spatial distribution of water and materials within a changing space. Third, the concept of hydrologic resource shed incorporates the space-time variability in studying watershed patterns and processes. Taking advantage of current tracing, remote sensing, mapping, and modeling technologies, hydrologic resource shed provides a new way of discovering, understanding, and simulating the transport and distribution, of water and materials across multiple space and time scales. An example is presented for computing the hydrologic resource shed distributions using a hydrologic model, Distributed Large Basin Runoff Model (DLBRM) in the Maumee River watershed in western Lake Erie Basin of the U.S. |
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| Keywords: | hydrologic resource shed runoff hydrologic model DLBRM Lake Erie |
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