Land cover changes and management effectiveness of protected areas in tropical coastal area of sub-Saharan Africa
ENVIRONMENTAL AND SUSTAINABILITY INDICATORS(2024)
摘要
Nature-based solutions to ecological challenges have continued to draw significant attention, and are connected to the increased establishment of protected areas as a means for climate and ecological crisis mitigation. This study presents an innovative approach that combines spatial and statistical analysis of land cover change and drivers to evaluate land use management and effectiveness of 22 designated protected areas (PAs) across the tropical coastal regions of sub-Saharan Africa. While the results provided insight into land use management and conservation priorities, it highlighted (1) the use of these protected areas for food production is prevalent, irrespective of its designation. Nevertheless, there is evidence of a decline in cropland in some of the protected areas, suggesting a shift in policy towards conservation land use. (2) The occurrence of forest loss suggests that conservation is weak in most of the protected areas, while wetland conservation efforts are stronger due to their land cover expansion. (3) Population density (human factor) is the most significant driver of land cover change in these protected areas, followed by elevation (natural environment), precipitation (climate), nighttime light (socioeconomic), and slope (natural environment). (4) In terms of Ecosystem value, only 15 of the 22 protected areas exhibited an increase in their total ecosystem service value according to land cover change, indicating sustainable land use and measures effectiveness in these protected areas. However, based on an individual land cover assessment, most protected areas showed signs of loss, especially in forests. Given the projected population growth in Africa, a regular assessment of protected areas should be initiated to enable effective and timely management decisions. Additionally, policies to improve the management effectiveness of African protected areas through funding should be a top priority, while taking into consideration the livelihoods of the indigenous people in the area in order to find a sustainable balance.
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关键词
Land sharing,Land sparing,Protected Area,Land Use Cover,Ecosystem Services Value,Tropical Coastal Area,Sub-Saharan Africa
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