Accepted Papers - 3.pdf - UNESCO

“Collection of runoff for its productive use”. Runoff
may be harvested from roofs and ground surfaces
as well as from intermittent watercourses.
Productive use includes provision of domestic and
stock water, concentration of runoff for crops,
fodder and tree production and less frequently water
supply for fish and duck ponds.
MATERIALS AND METHODS
Study Area
The Henwal watershed belongs to the
central part of district Tehri Garhwal and is located
adjacent to Hill Campus, G.B. Pant University of
Agriculture and Technology, Ranichauri, between
30 0 15' to 30 0 20' N latitude and 78 0 25' to 78 0 30' E
longitude, at an altitude of 1500 m above msl (Fig.
1). The climate of the area is monsoonic. Mean
Hill Campus, G.B. Pant University of
Agriculture and Technology, Ranichauri
Fig. 1. Index map of the study area
340
maximum temperature ranged from 10.6 0 C
(January) to 25.5 0 C (May). The mean minimum
temperature varied from 1.9 0 C (January) to 14.9
0 C (August). Humidity, as recorded at 2 P.M., was
minimum (30.4%) during April and maximum
(83%) during August. Mean annual rainfall was
about 1271 mm. The average monthly rainfall
ranged between 12 mm (during November) to 266
mm (during August). Based on temperature, rainfall
and humidity characteristics, the year could be
divided into three different seasons viz. summer,
rainy and winter. Total geographical area of the
watershed is 666 ha. Most of the area is under
rainfed agriculture, due to lack of irrigation
facilities. On the basis of revenue records of the
area, the average land use is shown in Table 1.