Natural resource engineering is the design of planned activities that compliment or oppose natural or societal forces and leads to modifications in soils, water, biota and/or the air. Natural resource engineers prevent and solve problems stemming from manipulation of the elements native to the earth. This book integrates environmental and water quality issues. It surveys hydrology in general with focus on surface water management. Topics covered include water quality, erosion, open channel flow, structures, embankments, irrigation and drainage, wind erosion and odours.