The Permaculture Earthworks Handbook: How To Design And Build Swales, Dams, Ponds, And Other Water Harvesting Systems

The Permaculture Earthworks Handbook covers the functions, design, and
construction of nine types of earthworks to maximize water availability
in any climate. It's a practical guide for landscape
designers, permaculturists, and landowners seeking to maximize food
production and ecosystem resiliency at the lowest cost and impact.