Rainwater Harvesting and Conservation

"You must plant the rain before you plant a seed or tree."

Zephaniah Phiri Maseko, Zimbabwean farmer and rainwater harvesting visionary

Zimbabwe has suffered greatly from a multi-year drought that has devastated agriculture across much of southern Africa. For years, the rainy season in Zaka has produced little rain, and lasted only 3 to 4 months. The remaining months are extremely dry. When the rains finally come they are often heavy but brief. Most of the rain runs off the dry ground, carrying precious topsoil with it. The resulting poor quality, dry soil grows little and is hard-packed, making the  runoff even worse – a classic vicious cycle. Rainwater harvesting and conservation combined with biointensive agriculture are working together to reverse this cycle.

We teach communities a variety of strategies they can implement immediately to capture rainwater, revitalize their soil, prolong the growing season of their gardens and trees, and even raise the local groundwater and well levels. A vision of the transformative impact of rainwater harvesting has inspired households across fifteen villages to dig kilometres of trenches, diversion contours, infiltration pits, and in-ground water tanks and to recycle their grey water. Combined with biointensive methods of nourishing the soil and a widespread tree-planting program, we are seeing the landscape renewed!

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Rainwater harvesting is hot, hard, dusty work – but people are enthusiastically digging because they see the benefits.

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Kudakwashe cares for 3 orphaned children in his home. He has dug trenches and infiltration pits throughout his property. Rather than running off, the rainwater now soaks into the ground and nourishes his avocado trees well beyond the rainy season.

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Water runs off the dry soil on the left, but the composted and nourished soil on the right soaks it up like a sponge.

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