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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 22, No. 8, 2018, pp. 1355-1362
Bioline Code: ja18227
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 22, No. 8, 2018, pp. 1355-1362

 en Variation in Runoff and Sediment Loss in Fallow and Abandoned Farmland in Agoi-Ekpo, Cross River State, Nigeria


A study was carried out to assess soil erosion and associated losses on abandoned cassava farmland, 3-year, 10-year and 5-year fallows in a part of the rainforest zone of southern Nigeria. The study showed that the 5-year fallow yielded the most losses as a result of its scanty herbaceous cover and existence of canopy gaps followed by the abandoned cassava farmland, while the 10-year experienced the lowest losses in runoff and sediment. Runoff loss (F = 16.089; p<0.05) and sediment loss (F = 6.355, p<0.05) varied significantly among the treatments. The study revealed erosional losses occurred in all plots and that fallows with sparse herbaceous cover were less effective in suppressing soil erosion. To reduce unproductive loss of rich topsoil, farmers were encouraged to maintain adequate herbaceous cover during cropping to speed up ecological restoration after land abandonment.

Fallow vegetation; Soil erosion; Erosional losses

© Copyright 2018 - Iwara et al.

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