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Chapter
Apr 26, 2012

Mapping Contrasting Tillage Practices in the Texas Panhandle with Landsat Thematic Mapper (TM) Data

Publication: World Environmental and Water Resource Congress 2006: Examining the Confluence of Environmental and Water Concerns

Abstract

Tillage information is crucial in environmental modeling as it has a direct impact on soil erosion and water holding capacity of agricultural soils. A remote sensing approach is promising for the rapid collection of tillage information on individual fields over large areas. In this study, six Thematic Mapper (TM)-based logistic regression models proposed by van Deventer et al were used to distinguish conventional and conservation tillage practices in Ochiltree County located in the Texas panhandle. Accuracy assessments of tillage maps derived from Landsat 5 TM data were made using field data collected during the 2005 planting season. Logistic regression models were easy to use, cost and time effective, and produced reasonably accurate tillage maps. The "percent correct" and kappa (k) values varied from 61–83% and 0.02–0.73, respectively, with best values for logistic regression models that use TM bands 1, 3 and 5 images. This approach is promising for the rapid collection of tillage information on individual fields over large areas.

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Go to World Environmental and Water Resource Congress 2006
World Environmental and Water Resource Congress 2006: Examining the Confluence of Environmental and Water Concerns
Pages: 1 - 7

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Published online: Apr 26, 2012

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P. H. Gowda [email protected]
Agricultural Engineer, Conservation and Production Research Laboratory, USDA-ARS, P.O. Drawer 10, Bushland, TX 79012. E-mail: [email protected]
R. T. Peters [email protected]
Assistant Professor, Washington State University, Irrigated Agriculture Research and Extension Center, 24106 N. Bunn Rd., Prosser WA, 99350-8694. E-mail: [email protected]
T. A. Howell [email protected]
Agricultural Engineer & Research Leader, Conservation and Production Research Laboratory, USDA-ARS, P.O. Drawer 10, Bushland, TX 79012. E-mail: [email protected]

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