Bitte verwenden Sie diesen Link, um diese Publikation zu zitieren, oder auf sie als Internetquelle zu verweisen: https://hdl.handle.net/10419/30216 
Erscheinungsjahr: 
2009
Schriftenreihe/Nr.: 
Working Paper Series in Economics No. 131
Verlag: 
Leuphana Universität Lüneburg, Institut für Volkswirtschaftslehre, Lüneburg
Zusammenfassung: 
Bush encroachment is one of the most extensive changes in land cover in Namibia and an urgent problem for cattle farming, rapidly reducing the productivity of the rangeland. Despite the severity of these consequences, a complete and accurate assessment of bush encroached areas is still missing at large. This study aims at assessing bush encroachment on commercial cattle farms in central Namibia by employing remote sensing methods to distinguish between areas covered by bush and open rangeland. Herein we use different classification techniques and vegetation indices to characterize the nature of vegetation cover. Our analysis shows that results are sensitive to specific classifications of indices. As an accuracy assessment could not be run on these results we could not analyze which classification approximates real bush encroachment best. Hence, this study highlights the need for further analysis. Ground truth data, in the form of field mappings, high resolution aerial photographs or local expert knowledge are needed to gain further insights and produce reliable results.
Schlagwörter: 
Remote sensing
semi-arid rangelands
cattle farming
bush encroachment
JEL: 
Q57
Q15
Q24
Dokumentart: 
Working Paper

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