Detection of Human-Induced Land Degradation in a Semi-arid Rangeland

Hasan Jackson, University of Maryland, hjackso1@umd.edu (Presenter)
Stephen D Prince, University of Maryland, sprince@umd.edu

Land degradation in drylands plays an important role in influencing key biogeophysical processes which in turn influence primary and secondary production. The extent and severity of land degradation, however, has not been reliably monitored. There is a need for a quantitative, and repeatable, approach to monitoring land degradation. This study employs a regional approach to identify patterns of human related land degradation in the Burdekin catchment, Queensland, Australia. The objective was to develop a representative classification reflecting similar net primary production potentials, identify locations near potential production, identify significant patterns of land degradation on the regional landscape, and quantify the total loss in productivity experienced across a semi-arid rangeland. Findings suggest conclusive evidence of land degradation with diverse patterns of clustering and dispersion at regional scale. It was found that varying rates of land deterioration were present from 2000-2013 and can be stratified by current land condition. There remains a need to further reconcile observed mechanisms of land degradation with suspected drivers, i.e. management and environmental effects.

Presentation Type:  Poster

Session:  Theme 4: Human influence on global ecosystems   (Mon 4:30 PM)

Associated Project(s): 

• Related Activity: Related Activity or Previously Funded CC&E Activity not listed ...details

Poster Location ID: 67