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Article
Change detection of the effect of severe drought on subsistence agropastoral communities on the Bolivian Altiplano
International Journal of Remote Sensing (1998)
  • Neil E. West, Utah State University
  • R A Washington-Allen
  • RD Ramsey
  • B E Norton
Abstract
The purpose of this study was to identify the ecological effects of drought on the vegetation resources of subsistence agropastoral communities on the Bolivian Altiplano. The objectives of the study were to (1) characterize vegetation cover response during a typical year, and (2) identify vegetation cover type's response to drought using an image differencing change detection technique. A geographical information system (GIS), which included multi-temporal (from 1972-1987) Landsat satellite imagery, was used as the assessment tool. Vegetation index difference images showed that (1) all vegetation types were impacted by drought, but the wet meadow vegetation cover type had the least response, and (2) approximately 90 per cent of vegetation cover had not changed between 1972 and 1987...
Disciplines
Publication Date
1998
Citation Information
Neil E. West, R A Washington-Allen, RD Ramsey and B E Norton. "Change detection of the effect of severe drought on subsistence agropastoral communities on the Bolivian Altiplano" International Journal of Remote Sensing Vol. 19 Iss. 7 (1998)
Available at: http://works.bepress.com/neil_west/35/