Abstract
Like other regions of Guinea Bissau, the economy of the Cacheu region is not very diversified and is dominated by cashew nut cultivation. As the country's leading production zone, with more than 30% of the national cashew nut production, the region has seen the disappearance of a large part of its natural ecosystems, especially the Elaeis guineensis parklands, despite their socio-economic importance. It is in this logic that this study is devoted to the analysis of the dynamics of the Elaeis guineensis parklands in the Cacheu region over the last fifteen years. To do this, terroir transects and mapping were carried out in order to identify and see the evolution of the landscape units. Surveys on the dynamics of the parklands and other landscape units have been carried out. The combination of these methods revealed a strong disappearance of Elaeis guineensis parklands and natural vegetation. Between 2003 and 2018, an average increase of 224 ha of cashew plantation by village terroir was noted, already causing the disappearance of 153.26 ha of Elaeis guineensis parklands on average. The main cause of this disappearance is the uncontrolled expansion of cashew nut plantations. In addition to this, there are many cuts of palm tree for house construction, habitat expansion, bad exploitation practices and climate deterioration. This pressure on Elaeis guineensis parklands is gradually leading them to disappear in favour of cashew nut monoculture. It is for this purpose that special attention is being paid to these ecosystems, which are of paramount importance to the livelihood of the local population.
Highlights
As in most sub-Saharan African countries, Guinea-Bissau's economy is essentially based on the primary sector dominated by agriculture [1]
More than 90% of the population of Guinea-Bissau depends directly on cashew nuts. It accounts for 90% of export earnings, 18% of GDP, 85% of direct and indirect employment and 33% of household income [12, 9]. This high cashew nut production is the result of a major transformation of natural ecosystems, especially in the Cacheu region, which is by far the country's leading production area, accounting for more than 30% of the national total
This study aims to analyze the dynamics of Elaeis guineensis parklands in the Cacheu region over the last fifteen (15) years
Summary
As in most sub-Saharan African countries, Guinea-Bissau's economy is essentially based on the primary sector dominated by agriculture [1]. More than 90% of the population of Guinea-Bissau depends directly on cashew nuts It accounts for 90% of export earnings, 18% of GDP, 85% of direct and indirect employment and 33% of household income [12, 9]. This high cashew nut production is the result of a major transformation of natural ecosystems, especially in the Cacheu region, which is by far the country's leading production area, accounting for more than 30% of the national total.
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