The Permaculture Earthworks Handbook
How to Design and Build Swales, Dams, Ponds, and other Water Harvesting Systems
by Douglas Barnes
In the face of drought and desertification, well-designed water harvesting earthworks such as swales, ponds, and dams are the most effective way to channel water into productive use. The result can be increased food production, higher groundwater levels, reduced irrigation needs, and enhanced ecosystem resilience.
Yet due to a lack of knowledge, designers, and landowners often build earthworks that are costly, inappropriately sized and sited, or even dangerous.
The Permaculture Earthworks Handbook is the first dedicated, detailed guide to the proper design and construction of water harvesting earthworks. It covers the function, design, and construction methods for nine main types of water harvesting earthworks across a full range of climates.
Coverage includes:
	
Swales, ponds, dams, hügelkultur, net-and-pan systems, spate irrigation, and more
	
Cost versus benefit of different earthworks
	
Assessing site needs and suitability
	
Soil types and hydrology
	
Designing for maximum efficiency and lowest cost
	
Risk assessment and safe construction
	
Stacking functions and integrating earthworks into a design
This practical handbook is the essential resource for permaculture designers, teachers and students, landowners, farmers, homesteaders, landscape architects, and others involved in maximizing the water harvesting potential of any landscape at the lowest cost and impact.