The way of the swale
A swale is a permaculture technique designed to improve water catchment and retention on slopes. Applicable to varying scales, a swale is basically a ditch or terrace created along a contour line with the removed soil piled on the downhill side. As rainwater drains down the slope above is is caught and absorbed by the swale. Plantings made along the swale will have access to additional moisture for extended period.
My first attempt at a small swale follows the contour line on a northwest facing slope below an existing track. Because of the small size I was able to dig this by hand over 2 periods, using an A-frame level. Over the course of the next few months we will be scattering the kitchen scraps along the length for the chooks to work over, adding their manure and nutrients from the kitchen. Finally it will be planted up in a variety of different plants from ground covers, bulbs and shrubs to fruit and firewood trees.June 12, 2011
Building water catchment swales with a tractor
For those with a tractor, plough and simple drag blade, making large scale swales does not necessarily require employing contractors with heavy earth moving equipment. For the cost of the fuel and your time you can quickly add these simple water harvesting and infiltration systems to your land.