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• GEOMORSIS (Geo morphometric analysis):
Selection of watershed, Automated drainage ordering
using Strahler and Schreeve method, drainage
morphometric analysis and watershed characterisation
can be performed using this module.
• VARUN (Value Added Rainfall Runoff
Analysis): is used for Hydrograph analysis and
Hydrologic design of water structures which is essential
for development of Water resources as well as for
mitigating the adverse effects of floods. This module
performs computation of Direct Runoff depth, Peak
runoff rate and excess rainfall hyetograph.
• SARITA (Scheduling and Water Requirement
for Irrigation Project Planning): This package
computes potential evopotranspiration using
Hargreave’s method and modified Penmann method.
SAMRIDHI
The L.R.D.P. (Land Resources Development Plan)
map generation program (SAMRIDHI) is conceptually
based on the generation of the plan based on the KBF
(Knowledge Based Files) info files which are generated
by the experts. The program facilitates for generation of
the KBF by the expert through a user interface menu
where the expert will have all the required information
to generate the save. User can generate the Composite
Land Development Unit (CLDU) not only with the
polygon coverage but also with the line and point
coverage. After generating the CLDU the LRDP can be
generated using the KBF. User can further refine/update
the LRDP with locale specific action plan and save them
as an NRIS standard LRDP layer.
4.1.4 Output Generation Module
This module facilitates the user to generate a hard
copy output of the map in different sizes with back
ground of satellite data with various annotation facilities.
4.1.5 Lab to Land
All the modules are developed and integrated based
on user needs ranging from the planners at the state and
district level officers, NGO’s involved in plan
implementation at field level for the scientific execution
of action plan. The package is fully tested and
operationalised with user friendly interface. The package
is presently installed for use at six district nodes in the
states of Maharashtra, Gujarat, Andhra Pradesh,
Karnataka and Orissa.
5.0 CASE STUDY
Uma_Gani Watershed comprising of 17000 ha has
been prioritized and selected based on its socio
economic backwardness and resources potentials for
detailed analysis and action plan generation.
The water resources development plan clearly
depicts the zones of exploitation, development and
conservation. The exploitation of prospective ground
water zones has been suggested through tube wells,
shallow tube wells and dug-wells based on the
geological strata and requirements. Rain water
harvesting structure are suggested to reduce the large
scale sudden run off generated in Talchir shale area and
to recharge the valley fill areas. The structures suggested
are stream bunding and farm ponds. The optimal
utilisation of the ground water and subsequent
monitoring, exploratory tubewells / borewells are also
suggested. Desilting of existing reservoirs and tanks are
also given priority.
The land resources development plan depicts
alternative land use practices through double cropping,
horticulture, agro-horticulture, agro-forestry, afforest
ation, fuel and fodder plantation and silvi pasture along
with appropriate soil conservation measures like, nalla
straightening, farm bunding, terracing and Khus
plantations.
The suggested water and land resources develop
ment plans are expected to result in the transformation of
the existing land use practices into sustainable ones that
will meet the needs of the present population and future
generation without endangering the environment.
In the study area the cropping intensity, ground-
water level, average yields of crops, horticulture
plantation and economic returns to the farmer are
considered as indicators of development. The data is
collected from remote sensing inputs and field validation
of different farmers.
An awareness programme of all the stake holders
(officers involved in plan preparation / implementation
and monitoring Non-Government organizations, women
organizations, gram sevaks and farmers) involved in the
project has been carried out through village level
meetings and the block level interactions. The watershed
is being monitored using satellite data for change
detection in terms of Land use/Land cover and field
studies to established the increase in the yield of crops,
status of ground water and reduction of run-off.
So far, an amount of $0.2 million has been spent
for the implementation in selected villages, on priority