Assessing land degradation and desertification using vegetation index data: current frameworks and future directions
The scientific requirements for degradation and desertification monitoring systems are identified: (i) validation of methodologies in a robust and comparable manner and (ii) detection of degradation at minor intensities and magnitudes. Thomas Higginbottom and Elias Symeonakis of the School of Science and the Environment, Manchester Metropolitan University, UK apply the statistical and ecological frameworks for assessing land degradation and desertification using vegetation index data. They also review the development of multi-temporal analysis as a desertification assessment technique, with a focus on how current practice has been shaped by controversy and dispute. The techniques commonly employed are examined from both a statistical and ecological point of view, and recommendations are made for future research directions. The paper is part of the Remote Sensing Special Issue 'Remote Sensing of Land Degradation in Drylands'.
(Remote Sensing, 10/10/2014)
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