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Tracking conservation effectiveness in the Vhembe Biosphere Reserve in South Africa using Landsat imagery

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Abstract

Biosphere reserves (BRs) seek to reconcile a sustainable relationship between human welfare and environmental integrity by adopting a landscape model that distinguishes between three interdependent management zones (core, buffer, transition). Considering the increasing human influence on landscapes in BRs, the tracking land use–land cover (LULC) dynamics is crucial for the development and planning of efficient management strategies for specific management zone. This study aimed at (i) assessing biodiversity protection around the core zones to highlight the threats facing the core zones and (ii) tracking the effect of the proclamation of the Vhembe Biosphere Reserve (VBR) on the LULC dynamics in the management zones through spatio-temporal analysis using Landsat imagery acquired from1999 to 2018. Six LULC categories (water body, forest/bush, shrubs/grass, agricultural land, bare soil, and built-up/mines) were identified and mapped using the support vector machine (SVM) classification to address both objectives. Assessment of threats around the core zones using artificial buffers (0–5, 10–15, and 15–20 km radius) created around them showed agricultural activities in the most immediate buffers (0–5 km radius). The LULC dynamics showed vegetation increase in all the management zones evidenced by the reduction of bare soil as well shrub/grass lands, and by the corresponding increase in foliage-richer forest/bush lands since the proclamation of the reserve in 2009. The findings might signify a positive outcome of vegetation increase as a consequence of the proclamation of the VBR. However, firmer conservation measures must be adopted and priority must be given to the arrangement of the management zones to strengthen biodiversity protection in the core zone.

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Acknowledgments

The University of Johannesburg provided all necessary support for the research.

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The authors acknowledge the University of Johannesburg Commonwealth Scholarship for supporting this research.

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  1. Department of Geography, Environmental Management and Energy Studies, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg, 2006, South Africa

    Tanre I. Jauro, Solomon G. Tesfamichael & Isaac T. Rampedi

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  1. Tanre I. Jauro
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  2. Solomon G. Tesfamichael
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  3. Isaac T. Rampedi
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Correspondence to Tanre I. Jauro or Solomon G. Tesfamichael.

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Jauro, T.I., Tesfamichael, S.G. & Rampedi, I.T. Tracking conservation effectiveness in the Vhembe Biosphere Reserve in South Africa using Landsat imagery. Environ Monit Assess 192, 469 (2020). https://doi.org/10.1007/s10661-020-08416-w

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