Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 61, Issue 1, Pages 25-36Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1006/jema.2000.0395
Keywords
water quality; land-use planning; watershed management; Geographic Information Systems; Index of Biotic Integrity; Invertebrate Community Index
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The spatial relationships between land uses and river-water quality measured with biological, water chemistry, and habitat indicators were analyzed in the Little Miami River watershed, OH, USA. Data obtained from various federal and slate agencies were integrated with Geographic Information System spatial analysis functions. After statistically analyzing the spatial patterns of the wafer qualify in receiving rivers and land uses and other point pollution sources in the watershed, the results showed that the water biotic qualify did not degrade significantly below wastewater treatment plants. However, significantly lower water quality was found in areas downstream from high human impact areas where urban land was dominated or near point pollution sources. The study exhibits the importance of integrating water-quality management and land-use planning. Planners and policy-makers at different levels should bring stakeholders together, based on the understanding of land-water relationship in a watershed to prevent pollution from happening and to plan for a sustainable future. (C) 2001 Academic Press.
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