%0 Journal Article
%T The Application of Hydrologic Resource Sheds to Water Resource Management<br>“水资源域”概念及其在水资源管理中的应用
%A HE Xiaoying
%A HE Chansheng
%A <br>贺晓英
%A 贺缠生
%J 资源科学
%D 2012
%I 
%X 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.
%K Watershed
%K Hydrologic resource shed
%K Runoff
%K DLBRM
%K Lake Erie<br>流域
%K 水资源域
%K 径流
%K 分布式大流域模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=9DEEAF23637E6E9539AD99BE6ABAB2B3&aid=619BC47B47C1F3B4DB50AC1A4EA5F452&yid=99E9153A83D4CB11&vid=339D79302DF62549&iid=F3090AE9B60B7ED1&sid=1B889749E306CF0E&eid=C8B07D2649102CD1&journal_id=1007-7588&journal_name=资源科学&referenced_num=0&reference_num=16