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Wetland vegetation plays a key role in the ecological functions of wetland environments. Remote sensing techniques offer timely, up-to-date, and relatively accurate information for sustainable and effective management of wetland vegetation. This article provides an overview on the status of remote sensing applications in discriminating and mapping wetland(More)
Indigenous forest degradation is regarded as one of the most important environmental issues facing Sub-Saharan Africa and South Africa in particular. We tested the utility of the unique band settings of the recently launched South African satellite, SumbandilaSat in characterising forest fragmentation in a fragile rural landscape in Dukuduku, northern(More)
Sirex noctilio is currently the most destructive pest of conifers in South Africa and the wasp is currently causing considerable tree mortality in Pinus patula forests located in the southern parts of the country. Recent estimates indicate that 35,000 ha of P. patula forest are infested and dying (Hurley et al., 2007). In lieu of the future availability of(More)
Subtropical forest loss resulting from conversion of forest to other land-cover types such as grassland, secondary forest, subsistence crop farms and small forest patches affects leaf nitrogen (N) stocks in the landscape. This study explores the utility of new remote sensing tools to model the spatial distribution of leaf N concentration in a forested(More)
The remote sensing of grass quality as determined by nitrogen, phosphorous, potassium, calcium and magnesium concentration is critical for a better understanding of wildlife and livestock feeding patterns. Although remote sensing techniques have been proven useful to assess the concentration of foliar biochemicals under controlled laboratory conditions,(More)