Application of the ReNuMa model in the Sha He river watershed: Tools for watershed environmental management

Application of the ReNuMa model in the Sha He river watershed: Tools for watershed environmental... 1 Introduction</h5> Eutrophication is a crucial issue worldwide for environmental water management ( Kuo et al., 2008 ; Leigh et al., 2010 ). In northern China, for example, the Hai River basin is a region of concern because it has become increasingly eutrophied in the past several decades. Eutrophication in this basin has accompanied the economic development and modernization of this region, which has challenged the ecological stability of the watershed system ( Lowery, 1998 ). Water bodies are impacted by anthropogenic disturbances that supply excess nutrients to their systems. Dissolved nitrogen (DN) has significantly impaired water quality and is thus seen as a major target for load reduction ( Ferreira et al., 2007 ; Chen et al., 2011 ). Nonpoint sources of DN loads have only recently received attention in China and have become a serious concern ( Zhang and Wen, 2008 ; Ongley et al., 2010 ).</P>Unlike the direct discharge of point sources, the diffuse nature of nonpoint sources makes their identification more difficult. Nonpoint source loads are characteristically indirect, are multiple and dynamic in nature, and are closely correlated with hydrological processes at the watershed scale ( Loague et al., 1998 ; Zhang et al., http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Environmental Management Elsevier

Application of the ReNuMa model in the Sha He river watershed: Tools for watershed environmental management

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Publisher
Elsevier
Copyright
Copyright © 2013 Elsevier Ltd
ISSN
0301-4797
D.O.I.
10.1016/j.jenvman.2013.03.030
Publisher site
See Article on Publisher Site

Abstract

1 Introduction</h5> Eutrophication is a crucial issue worldwide for environmental water management ( Kuo et al., 2008 ; Leigh et al., 2010 ). In northern China, for example, the Hai River basin is a region of concern because it has become increasingly eutrophied in the past several decades. Eutrophication in this basin has accompanied the economic development and modernization of this region, which has challenged the ecological stability of the watershed system ( Lowery, 1998 ). Water bodies are impacted by anthropogenic disturbances that supply excess nutrients to their systems. Dissolved nitrogen (DN) has significantly impaired water quality and is thus seen as a major target for load reduction ( Ferreira et al., 2007 ; Chen et al., 2011 ). Nonpoint sources of DN loads have only recently received attention in China and have become a serious concern ( Zhang and Wen, 2008 ; Ongley et al., 2010 ).</P>Unlike the direct discharge of point sources, the diffuse nature of nonpoint sources makes their identification more difficult. Nonpoint source loads are characteristically indirect, are multiple and dynamic in nature, and are closely correlated with hydrological processes at the watershed scale ( Loague et al., 1998 ; Zhang et al.,

Journal

Journal of Environmental ManagementElsevier

Published: Jul 30, 2013

References

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