Setting up operation and maintenance
Khadin
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Though site specific, with good management it can make arid wasteland productive. |
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On an average, the cultivated area under each Khadin is 10-14 ha with an average dam size between 1.2-1.7 m high x 1.0-1.5 m wide and 100-300 meters in length, depending upon catchment area and number of land holdings. Some openings/gates, are usually provided at a proper location for excess water during flood conditions. |
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For efficient agriculture, size of catchment area is generally fifteen times of the cultivated area. Rainfall of 75-100 mm is sufficient to charge the Khadin soils with sufficient soil moisture content to raise a successful local crop. In the Khadin area, the collected runoff percolates into the ground and with time recharges the subsoil. Of the total runoff collected only 50-60% of the water is utilised. |