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Optimizing conservation practices in watersheds: Do community preferences matter?

ScholarsArchive at Oregon State University

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Title Optimizing conservation practices in watersheds: Do community preferences matter?
Names Piemonti, Adriana D. (creator)
Babbar-Sebens, Meghna (creator)
Luzar, E. Jane (creator)
Date Issued 2013-10-08 (iso8601)
Note This is the publisher’s final pdf. The article is copyrighted by the American Geophysical Union and can be found at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1944-7973.
Abstract This paper focuses on investigating (a) how landowner tenure and attitudes of farming
communities affect the preference of individual conservation practices in agricultural
watersheds, (b) how spatial distribution of landowner tenure affects the spatial optimization
of conservation practices on a watershed scale, and (c) how the different attitudes and
preferences of stakeholders can modify the effectiveness of alternatives obtained via classic
optimization approaches that do not include the influence of existing social attitudes in a
watershed during the search process. Results show that for Eagle Creek Watershed in
central Indiana, USA, the most optimal alternatives (i.e., highest benefits for minimum
economic costs) are for a scenario when the watershed consists of landowners who operate
as farmers on their own land. When a different land-tenure scenario was used for the
watershed (e.g., share renters and cash renters), the optimized alternatives had similar
nitrate reduction benefits and sediment reduction benefits, but at higher economic costs. Our
experiments also demonstrated that social attitudes can lead to alteration of optimized
alternatives found via typical optimization approaches. For example, when certain practices
were rejected by landowner operators whose attitudes toward practices were driven by
economic profits, removal of these practices from the optimized alternatives led to a setback
of nitrates reduction by 2–50%, peak flow reductions by 11–98%, and sediments reduction
by 20–77%. In conclusion, this study reveals the potential loss in optimality of optimized
alternatives possible, when socioeconomic data on farmer preferences and land tenure are
not incorporated within watershed optimization investigations.
Genre Article
Topic optimization
Identifier Piemonti, A. D., M. Babbar-Sebens, and E. J. Luzar (2013), Optimizing conservation practices in watersheds: Do community preferences matter?, Water Resources Research, 49, 6425–6449. doi:10.1002/wrcr.20491

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