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dc.contributor.authorDondofema, F-
dc.contributor.authorMafunga, H-
dc.descriptionIX International Rangeland Congress, diverse rangelands for a sustainable society, April 2nd to 8th 2011. Rosario, Argentina.en
dc.description.abstractGully erosion is a permanent form of erosion which is difficult and expensive to control resulting in a depreciation of land value due to a lowered water table and depleted water reserves (SARCCUS, 1981). Soil erosion is approximated to have occurred on 1.1 billion hectares of land globally. In the Zhulube Meso-catchment of Zimbabwe soil erosion and sedimentation are key limitations to achieving sustainable utilisation of land and water resources. The most prominent type of erosion in Zhulube is gully erosion which is geographically a widespread problem (Cooke & Reeves, 1976; Lal, 1992) and the worst stage of soil erosion. Anderson et al., (1993) state that in Zimbabwe alone an estimated 1 million hectares of land are affected by severe gully erosion with the figures rising to 29 million hectares of land in Africa at continental level. Dregne (1990), in his survey of Zimbabwe highlights more than half of Zimbabwe’s communal land as from suffering irreparable gully erosion damage, mainly because of Zimbabwe’s land tenure policies. GIS and remote sensing techniques are most suitable for gully identification and the assessment of an area’s vulnerability to erosion. These techniques thus present an appropriate method of quantifying and combating the gully erosion which is a challenge to the concept of Intergrated water resources management (Morgan, 1993).en_US
dc.publisherNinti oneen_US
dc.titleThe use of geospatial tools in gully erosion assessment and monitoring in the Zhulube Meso-catchment of Limpopo basinen_US
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