RESEARCH: Land Use Characteristics and Water Quality: A Methodology for Valuing of Forested Buffers |
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Authors: | Prakash Basnyat Lawrence Teeter B Graeme Lockaby Kathryn M Flynn |
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Institution: | (1) 207 M. White Smith Hall, School of Forestry, Auburn University, Auburn, Alabama 36849-5126, USA , US |
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Abstract: | In this study, water quality and basin characteristics data from different basins of the Fish River basin, Baldwin County,
Alabama, were used to develop a valuation model. This valuation model is based on the effectiveness of “contributing zones”
identified and delineated using methods described by Basnyat and others (Environmental Management]1999] 23(4):539–549). The “contributing zone” delineation model suggests that depending on soil permeability, soil moisture,
depth to water table, slope, and vegetation, buffer widths varying from 16 m to 104 m must be maintained to assimilate or
detain more than 90% of the nitrate passing through the buffers. The economic model suggests the value of retiring lands (to
create the buffers) varies from $0 to $3067 per ha, depending on the types of crops currently grown. The total value of retiring
all areas identified by the contributing zone model is $1,125,639 for the study area. This land value will then form the basis
for estimates of the costs of land management options for improving (or maintaining) water quality throughout the study area. |
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Keywords: | : Water quality Economic model Replacement cost Contributing zone |
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