International Journal of Applied Research
Vol. 1, Issue 10, Part E (2015)
Monitoring Desertification in the Tillabéry Landscape (Sahel Region) using Change Detection Methods and Landscape Metrics
This paper seeks to investigate and monitor desertification processes by using remote sensing based change detection methods as well as landscape metrics approaches. The analysis of land use/cover between 1973 and 2007 was conducted using one Landsat Multispectral Scanner (1973-09-30) image, a Landsat Enhanced Thematic Mapper plus (2001-09-18) image and two Landsat Thematic Mapper (1989-09-29 and 2007-09-27) images. The results of these classifications revealed an increasing trend in desertification throughout the study period. A set of indices (Mesh Index, Landscape Shannon’s Diversity Index, Mean Patch Area and Shape Index) were selected to investigate multi-temporal change in the Tillabéry landscape (Western Niger) an area affected by desertification. The results show that the landscape is highly fragmented, with a corresponding high number of patches with smaller patch sizes, indicating that the original landscape has been converted gradually into bare and desertified area. To further understand the trend and status of desertification in the Tillabéry landscape, a desertified index was developed.
How to cite this article:
Mansour Mahamane, Volker Hochschild, Alfred Schultz, Jude Kuma. Monitoring Desertification in the Tillabéry Landscape (Sahel Region) using Change Detection Methods and Landscape Metrics. Int J Appl Res 2015;1(10):315-321.