Effects of Monocropping on Land Cover Transitions in the Wet Evergreen Agro-Ecological Zone of Ghana

Seyram K. Loh, Kwabena O. Asubonteng and Selase K. Adanu
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Seyram K. Loh: Institute for Environment and Sanitation Studies, (IESS), College of Basic and Applied Science, University of Ghana, Legon P.O. Box LG 25, Ghana
Kwabena O. Asubonteng: Department of Natural Resources and Geo-Information Sciences, Nyankpala Campus, University for Development Studies, Tamale P.O. Box TL 1350, Ghana
Selase K. Adanu: Department of Environmental Science, Ho Technical University, Ho P.O. Box HP 217, Ghana

Land, 2022, vol. 11, issue 7, 1-22

Abstract: The wet evergreen forest ecological zone of Ghana is undergoing notable structural changes, although most maps erroneously depict the area to be an intact forest. Several hectares of plantation agriculture such as rubber, oil palm, and cocoa are replacing the natural vegetation and habitats, thereby threatening indigenous biodiversity. This study aimed to assess the effects of tree monocrop proliferation on landscape transitions between 1986 and 2020 in the Wassa East District of Ghana. The ISODATA clustering technique was used to produce land cover category maps from Landsat images of 1986, 2002, and 2020. A post-classification change detection technique resulted in transition matrices which were used for the computation of land cover transition intensities over 34 years. The results showed that the landscape was dominated by forests in 1986. Still, the forest continuously declined by 34% (1% annually) in 2020 while all other land cover types increased in both periods with cocoa covering 23% oil palm covering 14%, and rubber covering 2% of the land area. These conversions in the land area are important, especially since the closed forests usually transition to monocrops through the intermediate process: food crop farming. This information is essential for decision making on land development and biodiversity conservation.

Keywords: monocrops; tree crops; change detection; interval; categorical; transition; intensity analysis (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jlands:v:11:y:2022:i:7:p:1063-:d:861319

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