Effects of Tree-crop Farming on Land-cover Transitions in a Mosaic Landscape in the Eastern Region of Ghana

Environmental Management
Kwabena AsubontengIsa Baud

Abstract

Tree crops such as cocoa and oil palm are important to smallholders' livelihoods and national economies of tropical producer countries. Governments seek to expand tree-crop acreages and improve yields. Existing literature has analyzed socioeconomic and environmental effects of tree-crop expansion, but its spatial effects on the landscape are yet to be explored. This study aims to assess the effects of tree-crop farming on the composition and the extent of land-cover transitions in a mixed cocoa/oil palm landscape in Ghana. Land-cover maps of 1986 and 2015 produced through ISODATA, and maximum likelihood classification were validated with field reference, Google Earth data, and key respondent interviews. Post-classification change detection was conducted and the transition matrix analyzed using intensity analysis. Cocoa and oil palm areas have increased in extent by 8.9% and 11.2%, respectively, mainly at the expense of food-crop land and forest. The intensity of forest loss to both tree crops is at a lower intensity than the loss of food-crop land. There were transitions between cocoa and oil palm, but the gains in oil palm outweigh those of cocoa. Cocoa and oil palm have increased in area and dominance. The main cover types co...Continue Reading

References

Feb 16, 2011·Proceedings of the National Academy of Sciences of the United States of America·Eric F Lambin, Patrick Meyfroidt
Aug 13, 2011·Ecological Applications : a Publication of the Ecological Society of America·Sarah Paule DalleSylvie de Blois
Jan 7, 2014·Trends in Ecology & Evolution·William F LauranceKenneth G Cassman
Jun 18, 2015·Proceedings of the National Academy of Sciences of the United States of America·Rebecca Chaplin-KramerPeter M Kareiva

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Citations

Jun 7, 2020·Environmental Science and Pollution Research International·Sam Navin MohanRajanPrabukumar Manoharan
Mar 24, 2021·Environmental Management·Dorcas Peggy SomuahIsa Baud
Oct 17, 2021·Environmental Management·Mirjam A F Ros-TonenMichael K McCall

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Software Mentioned

ENVI
Earth Explorer
R
ISODATA
MLC
DIVA
GIS
Google Earth

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