Evaluating Watershed Management within a River Basin Context Using an Integrated Indicator System
Publication: Journal of Water Resources Planning and Management
Volume 136, Issue 2
Abstract
Factor analysis is used to develop an integrated indicator system that evaluates the state of watersheds from three perspectives (subindexes): water-use management, flood management, and environment and ecosystem management. The system, which has a total of nine indicators, is applied to evaluate the state of watershed management in the Han River basin, South Korea. For all the subindexes, preliminary tests, namely, the Kaiser-Meyer-Olkin test and the Bartlett test of sphericity, are conducted to evaluate the suitability of the data collected for factor analysis. The variables related to each subindex are then grouped into three factors (indicators) with the variables’ statistical characteristics taken into account. The results of the application of the system to the case study show that the indicator system reasonably depicts the state of the watersheds in the Han River basin and can be effectively applied to resolve concerns in watershed management; the system is one of the inevitable elements in the adaptive watershed management process. Examining the correlations between the indicators proves that the selection of the indicators and their variables is appropriate from a statistical perspective. In addition to providing evaluation information about the state of watersheds from multiple perspectives, the system can be used as a preprocessing step for watershed management modeling regarding the choice of watershed variables within the context of river basins.
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Acknowledgments
The Ministry of Land, Transport, and Maritime Affairs of South Korea is thanked for publishing data collected by the watershed investigation project. The writers appreciate the useful comments of the Editor, Associate Editor, and the anonymous reviewers.
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Information & Authors
Information
Published In
Journal of Water Resources Planning and Management
Volume 136 • Issue 2 • March 2010
Pages: 258 - 267
Copyright
© 2010 ASCE.
History
Received: Feb 12, 2008
Accepted: Sep 22, 2009
Published online: Feb 12, 2010
Published in print: Mar 2010
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