Estimating sagebrush cover in semi-arid environments using Landsat Thematic Mapper data Export

@article{citeulike:5334226, abstract = {Sagebrush ecosystems of the western US provide important habitat for several ungulate and vertebrate species. As a consequence of energy development, these ecosystems in Wyoming have been subjected to a variety of anthropogenic disturbances. Land managers require methodology that will allow them to consistently catalog sagebrush ecosystems and evaluate potential impact of proposed anthropogenic activities. This study addresses the utility of remotely sensed and ancillary geospatial data to estimate sagebrush cover using ordinal logistic regression. We demonstrate statistically significant prediction of ordinal sagebrush cover categories using spectral ( χ 2  = 113; p  < 0.0001) and transformed indices ( χ 2  = 117; p  < 0.0001). Both Landsat spectral bands ( c -value = 0.88) and transformed indices ( c -value = 0.89) can distinguish sites with closed, moderate and open cover sagebrush cover categories from no cover. The techniques described in this study can be used for estimating categories of sagebrush cover in arid ecosystems.}, author = {Sivanpillai, Ramesh and Prager, Steven D. and Storey, Thomas O.}, citeulike-article-id = {5334226}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.jag.2008.10.001}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S030324340800072X}, doi = {10.1016/j.jag.2008.10.001}, issn = {03032434}, journal = {International Journal of Applied Earth Observation and Geoinformation}, keywords = {cover, landsat, sagebrush}, month = {April}, number = {2}, pages = {103--107}, posted-at = {2009-09-09 19:48:28}, priority = {2}, title = {Estimating sagebrush cover in semi-arid environments using Landsat Thematic Mapper data}, url = {http://dx.doi.org/10.1016/j.jag.2008.10.001}, volume = {11}, year = {2009} }

TY - JOUR ID - citeulike:5334226 L3 - citeulike-article-id:5334226 N2 - Sagebrush ecosystems of the western US provide important habitat for several ungulate and vertebrate species. As a consequence of energy development, these ecosystems in Wyoming have been subjected to a variety of anthropogenic disturbances. Land managers require methodology that will allow them to consistently catalog sagebrush ecosystems and evaluate potential impact of proposed anthropogenic activities. This study addresses the utility of remotely sensed and ancillary geospatial data to estimate sagebrush cover using ordinal logistic regression. We demonstrate statistically significant prediction of ordinal sagebrush cover categories using spectral ( χ 2  = 113; p  < 0.0001) and transformed indices ( χ 2  = 117; p  < 0.0001). Both Landsat spectral bands ( c -value = 0.88) and transformed indices ( c -value = 0.89) can distinguish sites with closed, moderate and open cover sagebrush cover categories from no cover. The techniques described in this study can be used for estimating categories of sagebrush cover in arid ecosystems. IS - 2 JF - International Journal of Applied Earth Observation and Geoinformation SN - 03032434 EP - 107 TI - Estimating sagebrush cover in semi-arid environments using Landsat Thematic Mapper data VL - 11 SP - 103 KW - cover KW - landsat KW - sagebrush AU - Sivanpillai, Ramesh AU - Prager, Steven AU - Storey, Thomas PY - 2009/04// UR - http://dx.doi.org/10.1016/j.jag.2008.10.001 ER -