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Browsing by Author "Mathieu, Renaud"

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The Effect of Surface Fire in Savannah Systems in the Kruger National Park (KNP), South Africa, on the Backscatter of C-Band Sentinel-1 Images

Author: Mathieu, Renaud ; Main, Russell S ; Roy, DP ; Naidoo, Laven ; Yang, H Date: Jun 2019 Savannahs are mixed woody-grass communities where low-intensity surface fires are common, affecting mostly the grass layer and rarely damaging trees. We investigated the effect of surface fires in a savannah system in the Kruger National Park, ... Read more
Estimating above ground biomass as an indicator of carbon storage in vegetated wetlands of the grassland biome of South Africa

Author: Naidoo, Laven ; Van Deventer, Heidi ; Ramoelo, Abel ; Mathieu, Renaud ; Nondlazi, Basanda ; Gangat, R Date: Jun 2019 Wetlands store higher carbon content relative to other terrestrial ecosystems, despite the small extent they occupy. The increase in temperature and changes in rainfall pattern may negatively affect their extent and condition, and thus the ... Read more
Mapping and monitoring fractional woody vegetation cover in the arid savannas of Namibia using LiDAR training data, machine learning and ALOS PALSAR data

Author: Wessels, Konrad J ; Mathieu, Renaud ; Knox, N ; Main, Russell S ; Naidoo, Laven ; Steenkamp, Karen C Date: Nov 2019 Namibia is a very arid country, but experienced significant bush encroachment which has decreased ivestock productivity. Therefore, it is essential to monitor bush encroachment and widespread debushing activities. The aim of study was to ... Read more
A radar and LiDAR-based earth observation system for monitoring savanna woody structure in southern Africa

Author: Mathieu, Renaud ; Wessels, Konrad ; Main, Russell S ; Naidoo, Laven ; Van der Bergh, Frans ; Erasmus, Barend Date: Apr 2018 In southern Africa, landscapes are dominated by savannas, i.e., mixed tree-grass communities. These savannas are threatened by land clearing and degradation, as well as the densification of woody plants, a process known as bush encroachment. ... Read more

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Browsing by Author "Mathieu, Renaud"

Browsing by Author "Mathieu, Renaud"

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