|Indigenous technology knowledge for watershed management in upper north-west Himalayas of India (1998)|
|Chapter 2 - Soil and water management techniques|
In the hill region, the scope of boring tubewells, canals and even lift irrigation is limited, such facilities are confined to the low laying areas. Therefore, the most common source of irrigation remains the small water channels locally called Kuhls which intact accounts for 85.83 per cent of the total area under irrigation in hills (Fig. 2.1).
In cold deserts, some villages get water for irrigating their lands from some perennial torrents. In Spiti valley, the source of irrigation water is generally local nallas. Glacial water in cold deserts of Himachal Pradesh which forms the prime source of sustaining life in the region is brought to the field by making Kuhls (Water Channels).
In Kinnaur and other regions, the source of irrigation as well as drinking water is melting snow on the high peaks which runs downward in the shape of small and big nallahas (streams) and also spring out at certain points.