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Die Wirksamkeit von Boden

Die Wirksamkeit von Boden

Land use-land cover and

Land use-land cover and normalized difference vegetation index changes in Wello management interventions in all land use/cover types so that sustainable use is assured without compromising the advantage of upcoming generations. 4.3 Results and discussion 4.3.1 Implication of the topography on LULC change The DEM shows that about 60% of the study area has 60% (Figure 4.1). This means that nearly 40% of the study area falls within the steep slope category where cultivation should not be allowed without proper conservation strategies. According to rural land administration and use policy (Anonymous, 2005; 2006), the area coverage of the land that is allowed for cultivation (land with a slope

Land use-land cover and normalized difference vegetation index changes in Wello Figure 4.1 DEM of North and South Wello Zones showing slope range 4.3.2 LULC dynamics of Wello area The analysis of the 2000 and 2009 MODIS data reveals considerable LULC change as a response to the vegetation restoration interventions. Accuracy assessment revealed 79.2% and 76.0% accuracy for the 2000 and 2009 image classification, respectively (Table 4.2). In the error matrix (Table 4.2), bolded diagonal numbers are counts of correctly classified pixels, while the off-diagonal numbers indicate counts of misclassified pixels. The off-diagonal numbers in the columns and rows are number of pixels commissioned to or omitted from particular LULC types. The LULC change in the current study shows remarkable variation in the different LULC types. Degraded woody vegetation and woody grasslands showed high dynamics (Figure 4.2 and Table 4.3). The area of degraded woody vegetation in 2000 accounted for about 19.7%, 41

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