scholarly journals Land-cover change in the Kruger to Canyons Biosphere Reserve (1993– 2006): A first step towards creating a conservation plan for the subregion

2010 ◽  
Vol 106 (7/8) ◽  
Author(s):  
Kaera L. Coetzer ◽  
Barend F.N. Erasmus ◽  
E. T.F. Witkowski ◽  
Asheer K. Bachoo
2020 ◽  
Vol 2 ◽  
pp. 100018 ◽  
Author(s):  
Tarun Kumar Thakur ◽  
Digvesh Kumar Patel ◽  
Arvind Bijalwan ◽  
Mammohan J. Dobriyal ◽  
Anirudh Kumar ◽  
...  

Author(s):  
Njini Loveline Munjeb ◽  
Yerima Bernard Palmer Kfuban ◽  
Marie-Louise Tientcheu Avana ◽  
Julius Tata Nfor ◽  
Enang Kogge Rogers

Land cover change is a growing concern around the world. This is especially true for protected areas which are rapidly degrading owing to pressure from anthropogenic activities. The aim of this study was to analyze land cover change for the periods 1980, 2008 and 2020 and its implication on the environment in and around the Dja Biosphere Reserve in south eastern Cameroon. This was done using remote sensing and geographical information systems techniques to quantify and measure the extent of land cover change in the study area for forty years. Household surveys were equally undertaken through the administration of questionnaires to farmers in villages located within the Dja Biosphere Reserve. Collected data was analyzed through the use of GIS software as well as Microsoft Excel. From the land cover maps, four classes were found: dense forest, cultivated areas, water surface, and buildings and bare soils. The transition matrix between 1980 and 2008 showed that 6477.81 ha of dense forest was lost to cultivated areas and between 2008 and 2020, 722.84 ha of dense forest was lost. Between 1980 and 2008 cultivated areas lost 0.07% and gain 0.72% between 2008 and 2020. Building and bare soils increase by 0.28% between 1980 and 2020. The Kappa index of agreement was 0.91 % between 1980 and 2008 and 0.88% between 2008 and 2020. Slash and burn agriculture (43.3%), hunting (36.3%) and harvesting of tree-based products (20.3%) were identified by farmers as the human activities with the most negative impact on the reserve. Results revealed that, there are still opportunities to safe this vulnerable reserve from the negative effects of land cover change through the practice of agroforestry.


2021 ◽  
Vol 13 (12) ◽  
pp. 6898
Author(s):  
Opelele Omeno Michel ◽  
Yu Ying ◽  
Fan Wenyi ◽  
Chen Chen ◽  
Kachaka Sudi Kaiko

Villages within the Luki Biosphere Reserve and the surrounding cities have undergone rapid demographic growth and urbanization that have impacted the reserve’s natural landscape. However, no study has focused on the spatiotemporal analysis of its land use/land cover. The present research aims at providing a comprehensive analysis of land use/land cover change in the Luki Biosphere Reserve from the year 1987 to 2020, and to predict its future change for the year 2038. Landsat images were classified in order to provide land use/land cover maps for the years 1987, 2002, 2017 and 2020. Based on these maps, change detection, gradient direction, and landscape metric analyses were performed. In addition, land use/land cover change prediction was carried out using the Multilayer Perceptron Markov model. The results revealed significant land use/land cover changes in the Luki Biosphere Reserve during the study period. Indeed, tremendous changes in the primary forest, which lost around 17.8% of its total area, were noted. Other classes, notably savannah, secondary forest, built-up area, fallow land and fields had gained 79.35, 1150.36, 67.63, 3852.12 hectares, respectively. Based on the landscape metric analysis, it was revealed that built-up areas and fallow land and fields experienced an aggregation trend, while other classes showed disaggregation and fragmentation trends. Analysis further revealed that village expansion has significantly affected the process of land use/land cover change in the Luki Biosphere Reserve. However, the prediction results revealed that the primary forest will continue to increase while built-up area, fallow land and fields will follow a trend similar to a previous one. As for secondary forest and savannah, the forecast revealed a decrease of the extent during the period extending from 2020 to 2038. The present findings will benefit the decision makers, particularly in the sustainable natural resources management of the Luki Biosphere Reserve.


2020 ◽  
Vol 95 ◽  
pp. 104578 ◽  
Author(s):  
Jennifer A. Devine ◽  
Nathan Currit ◽  
Yunuen Reygadas ◽  
Louise I. Liller ◽  
Gabrielle Allen

Author(s):  
Laurent Gbenato Houessou ◽  
Oscar Teka ◽  
Ismael Toko ◽  
Anne Mette Lykke ◽  
Brice Sinsin

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