Testing a Dynamic Complex Hypothesis in the Analysis of Land Use Impact on Lake Water Quality

QingHai Guo (), KeMing Ma (), Liu Yang and Kate He

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2010, vol. 24, issue 7, 1313-1332

Abstract: In this study, we proposed a dynamic complex hypothesis that the impact of land use on water quality could vary along the expansion of the buffer size, and there should be an effective buffer zone where the strongest linkage occurs between land use and water quality. The hypothesis was tested and supported by a case study carried out in four watersheds in Hanyang District, China. More specific, buffer analysis and regression model were applied for studying the impacts of land use type, area proportion of land use type, and spatial pattern of land use on water quality. We conclude that not only the proportion of land use but also the spatial pattern moderates the impact of land use on water quality. Our study indicates that the identification of the effective buffer zones can provide new information and ideas for planning and management. Moreover, this study could also partially help to explain the conflicting results on the impact of land use on water quality in buffer versus in catchments in the literatures. Copyright Springer Science+Business Media B.V. 2010

Keywords: Spatial pattern; Effective buffer; Land use; Water quality; Hanyang District; China (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1007/s11269-009-9498-y

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