Articles | Volume 8, issue 4
Research article
09 Aug 2017
Research article |  | 09 Aug 2017

Development of a composite soil degradation assessment index for cocoa agroecosystems in southwestern Nigeria

Sunday Adenrele Adeniyi, Willem Petrus de Clercq, and Adriaan van Niekerk

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Cited articles

Abiodun, J.: Service centres and consumer behaviour within the Nigerian Cocoa Area, Geografiska Annaler series B, Human Geography, 53, 78–93, 1971.
Adeoye, N. O. and Ayeni, B.: Assessment of deforestation, biodiversity loss and the associated factors: case study of Ijesa-Ekiti region of Southwestern Nigeria, GeoJournal, 76, 229–243,, 2011.
Adesodun, J. K., Davidson, D. A., and Mbagwu, J. S. C.: Soil quality assessment of an oil-contaminated tropical Alfisol amended with organic wastes using image analysis of pore space, Geoderma, 146, 166–74,, 2008.
Akinyemi, F. O.: An assessment of landuse change in the cocoa belt of south-west Nigeria, Int. J. Remote Sens., 34, 2858–2875, 2013.
Al-Kaisi, M. M., Lal, R., Olson, K. R., and Lowery, B.: Fundamentals and functions of soil environment in Soil health and intensification of agroecosytems, edited by: Al-Kaisi, M. M, and Lowery, B., Academic press, 1–23, 2017.
Short summary
Cocoa agroecosystems are a major land use type in West Africa, reportedly associated with the problem of soil degradation. This study developed a composite soil degradation assessment index (CSDI) for determining the degradation status of cocoa soils under smallholder farming systems in southwestern Nigeria. The newly developed index can show early warning signs of soil degradation, which can help farmers and extension officers to implement rehabilitation practices on degraded cocoa soils.