| “水资源域”概念及其在水资源管理中的应用 |
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| 引用本文： | 贺晓英,贺缠生.“水资源域”概念及其在水资源管理中的应用[J].资源科学,2012,34(10):1929-1934. |
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| 作者姓名： | 贺晓英 贺缠生 |
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| 作者单位： | 1. 西安工业大学经济管理学院,西安,710032
2. 西密歇根大学地理系,卡拉马祖市MI49008,USA． |
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| 基金项目： | 陕西省教育厅专项基金(编号:11JK0120)。 |
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| 摘 要： | ＂流域＂概念广泛被用于水文和水资源管理研究中。而这一概念只是强调给定空间范围内水和物质的时间分布,且流域边界相对稳定。＂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。水资源域概念的提出,能够对水和物质随时间和空间二者相互变化的动态分布加以解释,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。本文提出并定义了＂水资源域＂的概念,然后应用分布式大流域模型计算了美国茅密河的水资源分布。
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| 关 键 词： | 流域 水资源域 径流 分布式大流域模型 |
| 收稿时间： | 2/5/2012 12:00:00 AM |
| 修稿时间： | 8/7/2012 12:00:00 AM |
The Application of Hydrologic Resource Sheds to Water Resource Management |
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| HE Xiaoying and HE Chansheng.The Application of Hydrologic Resource Sheds to Water Resource Management[J].Resources Science,2012,34(10):1929-1934. |
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| Authors: | HE Xiaoying and HE Chansheng |
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| Institution: | 2 ( 1. Economics and Management School , Xi’an Technological University, Xi’an 710086, China; 2. Department of Geography, Western Michigan University, Kalamazoo, MI 49008, USA ) |
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| Abstract: | The watershed has been widely used in hydrologic research and water resources management. This concept emphasizes temporal distribution of water and materials within given space, and the boundary of a watershed is delineated by topography and relatively more stable. The lack of the watershed boundary across spatial and temporal scales has limited the capacity of understanding and predicting watershed responses to natural and anthropogenic changes. Here, the relatively new concept of a hydrological resource shed is proposed and defined. Hydrological resource shed is 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. Compared to the watershed concept, the hydrologic resource shed focuses on both the temporal and spatial distribution of water and materials within a changing space, and its boundary changes over both space and time. This relatively new concept has some unique features. First, the boundary of the hydrologic resource shed 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, whereas the watershed boundary is delineated by topography and is more stable. Second, the hydrologic resource shed focuses on both the temporal and spatial distribution of water and materials within a changing space whereas the watershed focuses on temporal distribution of water and materials within a given space. Third, the concept of hydrologic resource shed incorporates space-time variability in studying watershed patterns and processes. Taking advantage of current tracing, remote sensing, mapping, and modeling technologies, the hydrologic resource shed concept provides a new way of discovering, understanding and simulating the transport and distribution of water and materials across multiple scales of space and time. In water quality management, hydrologic resource sheds can be used to predict the movement of sediments, nutrients, microbial, and harmful algal bloom formation and transport. We provide an application for computing the hydrologic resource shed distributions using the Distributed Large Basin Runoff Model (DLBRM) in the Maumee River watershed in the western Lake Erie Basin, USA over varying time intervals, and reveal the relative contributory importance of subwatersheds to those locations in the lake. Finally, we discuss the potential application of hydrologic resource sheds to watershed research and management, climate science and ecology. |
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| Keywords: | Watershed Hydrologic resource shed Runoff DLBRM Lake Erie |
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