Water Stress on Springs of Lesser Himalayan Region | Chapter 08 | Advances in Applied Science and Technology Vol. 1
The lesser Himalayan range dominantly
consists of tectonic setting that is characterized by multiple
deformations resulting in
superimposed folding and
repeated faulting and
thrusting. The rocks
of lesser Himalayan are highly weathered and immensely fractured that
helps them to act as filter and regulates the groundwater paths for the springs
as conduit (rapid) or diffused (slow) flow. Springs of Uttarakhand, India are
back bone for domestic water availability during rainy and especially during
non rainy season even though they are highly ignored. A study was taken up at
Chandrabhaga and Danda watersheds in the mountainous region of Garhwal,
Uttarakhand to analyse rainfall and spring flow
pattern and to
suggest water transfer
plan to supplement
the water availability
during lean season. Regular
spring flow and automated hydro-meteorological data were collected for July
1999 to June 2010. The second order polynomial relationship is found best fit
between annual rainfall and annual average spring flow. Spring wise water
availability was compared with required domestic water demand and actual
domestic water uses for identification of springs under water deficit /surplus
for three scenarios of spring uses such as 24, 12 and 06 hrs in a day. Based on
water availability of the springs,
the water transfer
plans, working under
gravity for springs
has been suggested.
Study suggested a temporary storage of spring water, water transfer plan
among the springs and planning to increase the infiltration and water retention
power of soil.It is also
recommended to promote
horticulture along with
animal husbandry for
effective socio-economic development. The average
water availability through
all springs is
266766 l/d in Chandrabhaga and 262055 l/d in Danda
watershed, which is always greater than required domestic water demand. On the
other hand the minimum water availability through all springs is always less
than the required domestic water demand but is greater than actual domestic
water use. It suggests that the water availability is limiting factor for water
use and there is a need to increase the minimum water availability through
springs. Water transfer plan in collaboration with the existing social laws,
from “excess” spring to “deficit” spring, through gravity flow are suggested
for both the watersheds.
Biography of author(s)
Dr. Nitin Kumar Agrawal
Department of Applied
Sciences and Humanities, Moradabad Institute of Technology, Ram Ganga Vihar,
Phase -2,Moradabad –244 001, India.
Dr. Avinash Agarwal
National Institute of
Hydrology, Jal Vigyan Bhawan, Roorkee –247 667, India.
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