27-Impact of watershed management on hydrological regime.

Abstract

There is an increasing urgency towards watershed management with a view to improve upon the land and water resource utilisation. Practices in vogue for watershed management are: cover management, field measures, erosion and conservation structures and water harvesting structures. All the watershed management practices influence the land phase of the hydrologic cycle and are supposed to affect the runoff yield from a basin. This paper presents a comprehensive state of the art information of the impact of watershed management practices generally adopted in a drainage basin on the hydrological regime. Modelling inadequacies in evaluating the impacts is also brought out and a case study is presented.