Potential of GIS and remote sensing in mapping land degradation: catchment of the Manyame River, Zimbabwe
نویسندگان
چکیده
Abstract The Manyame River Catchment area in Zimbabwe, is experiencing severe land degradation mainly due to legal and illegal husbandry practices. These practices are negatively impacting on the sustainability of existing ecosystems. conditions can be inferred using its vegetative cover e.g., Normalised Difference Vegetation Index (NDVI). Quantitative data relating based notable physical features such as gullies, for at landscape scales poor. This study focused distribution magnitude area. mapped out contours human induced a residual trend analysis (RESTREND) method. In particular, used remote sensed (NDVI precipitation time series) analyse shifts over period 2000 2017. R statistical software packages (RESTREND Kendal) Geographic Information System (GIS) techniques quantify trends. results indicated extracts those areas which experienced significant during period. RESTREND effectiveness was assessed Mann Kendal Test. this by natural resources practitioners monitoring, assessing managing environmental changes GIS tools.
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ژورنال
عنوان ژورنال: Water Practice & Technology
سال: 2023
ISSN: ['1751-231X']
DOI: https://doi.org/10.2166/wpt.2023.025