2026-09-232026-09-232025-01-20https://ir.funaab.edu.ng/handle/123456789/762A Thesis submitted to the Environmental Systems and Climate Change Programme, Africa Centre of Excellence for Agricultural Development and Sustainable Environment (CEADESE), Federal University of Agriculture, Abeokuta in partial fulfillment of the requirements for the award of Degree of Doctor of Philosophy in Environmental Systems and Climate Change.enThesis