(Article of periodic en Anglais - 2011)

Document title

Effects of irrigation on the physico-chemical quality of water in irrigated areas : the Upper Osin Catchment, Kwara State, Nigeria

Authors(s) and Affiliation(s)

(1) Obafemi Awolowo Univ., NIGERIA
(3) Osun State Univ., NIGERIA


This study examines the effects of dry season irrigation farming (fadama) on the physical and chemical quality of the River Osin which receives both surface and subsurface flow from irrigated areas in the Upper Osin Catchment, Kwara State, Nigeria. A total of 90 samples were obtained from Upstream (UPS), Irrigated area (IRG) and Downstream (DNS) segments of the river in the dry and rainy seasons. Water samples were analysed for pH, conductivity, total dissolved solids (TDS), suspended solids, dissolved organic matter (DOM), pesticides. Agricultural pollutants contributed significantly to poor water quality observed at IRG and DNS segments but the values are within acceptable tolerance range at UPS. As a result, a holistic approach to agriculture and water resource management is recommended to ensure sustainable water resources development in the catchment


Article of periodic

published at : Progress in physical geography / ISSN 0309-1333 / CODEN PPGEEC

Editor : Sage Publications, London - ROYAUME-UNI (1977)

Millesime : 2011, vol. 35, no6 [pp. 707-719]

Bibliographic references : 30 ref.

Collation : 3 fig., 4 tabl.



INIST-CNRS, Cote INIST : 14648 A

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1177/0309133311407655

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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