Introduction
These systems can be constructed in many areas, both to increase the regeneration of the local aquifer with rainwater and to reduce the soil erosion from rainfall. Rain catchment during wet periods can also help full fill needs during dry periods. Rainfall can be used for drinking water, but here at Pedregal it is mainly used for irrigation and use in aquaculture. This is one project in a series of soil conservation, groundwater recharge, and farming demonstration projects at Pedregal a Permaculture Demonstration Center in San Andres Huayapam, Mexico.