Abstract
Gully-management strategies adopted in the Shiwalik range of hills in the lower Himalayas of India, which involve treatment of only higher order gullies, have not been successful. A study was conducted in the four selected micro-catchments in the region to monitor run-off and sediment yield variations in relation to differential gully-plugging schemes. One of the study catchments (catchment III) with highest run-off and sediment yield was selected for an alternative scheme of gully management. In this, all the first-order and 25–30% of the second-order gullies were plugged with locally available stones, and native grass vegetation wasplanted on the upstream side. Other catchments (catchments I, II and IV) were treated as per the the conventional method of gully plugging involving the installation of loose stone check dams in the highest order gullies. The highest run-off coefficient (15.5%) for the period 2000–2006 was registered in catchment III. However, this decreased to 12.8% during 2007, when the catchment was treated using an alternative gully-management scheme. The sediment yield from catchment III decreased by 20% in 2007 from 15.2 t ha−1 during 2000–2006. The results indicate that to control gully erosion, lower order gullies should be treated as a priority.
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