The fight for water
As the saying goes; water is life. This is also true for the Himo Tree Nursery.
By nature, water scarcity was not a major issue at Kilimanjaro in years past. There are several large rivers that carry water from the mountain slopes to the lowlands throughout the year.
The hillside population developed an elaborate irrigation system hundreds of years ago to transport the water needed for agriculture to the fields. By means of the so-called gravity ditch technique, river water is conveyed in countless intersecting canals to the areas used for agriculture. Usually these channels have their beginning at the uppermost edge of the forest zone. For tapping, a quiet river spot is sought. There, a barrier of stones is built so that the water accumulates into a small pond. From there, the feed begins into a constructed channel. Excess water flows over the stone barrier further down the river.
Since the river water is heavily polluted when it starts to rain after a long dry period, we have now thought about how we can clean it naturally so that the filters of the pump and the drip irrigation do not always close immediately.First, of course, roughly remove all leaves, sticks and garbage. Then we have filled the riverbed on about 10 meters length with different materials. Starting with larger stones, then getting smaller and smaller until we finally filled up to our inlet gravel. Through this natural filter, we hope that after the next big rainstorm our water reservoir will be filled with reasonably clear water. Let's wait and see.