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IAPRS & SIS, Vol.34, Part 7, "Resource and Environmental Monitoring", Hyderabad, India, 2002
REMOTE SENSING AND GIS FOR MICRO-WATERSHED DEVELOPMENT : A
GRASSROOT LEVEL APPROACH
A.S. Arya, R.J. Bhanderi, S.K. Pathan , Ajai, Vithal Patel* & S.S Patel*
Space Applications Centre, Ahmedabad — 380 058, Gujarat, India
*ANaRDe Foundation, Western zone, Gujarat, India
ashu2arya@ yahoo.com
KEYWORDS: Remote sensing, GIS, Hydrogeomorphology, Check Dam, Nala Bund, Agro-Forestry, Cost Benefit Ratio.
ABSTRACT:
Watershed development is an inter-disciplinary concept requiring multi-thematic information and its integration in a computer based
automated digital environment. Remote sensing provides the ideal platform for gathering quick, multi temporal, cost-effective ,
multi-thematic and latest realistic terrain information as required in the watershed approach. Dept. of Space in India took up a
project called IMSD (Integrated Mission on Sustainable Development) in order to fulfill the information needs in watershed
development programme of Govt of India . Panchmahals was one such district in Gujarat state for which preparations of water and
land resources development action plans were generated using remote sensing and GIS. The present paper discusses the details of
this work with respect to the methodology adopted, results and especially the implementation by the concerned PIA's ( Project
implementing agencies) in one of the talukas of the district. The end
-to-end approach of planning, implementing and monitoring the
benefits at the grass root level has been adopted and the results are summarized in this paper.
1. INTRODUCTION
Watershed development is an inter-disciplinary concept
requiring multi-thematic information and its integration in a
computer based automated digital environment. Remote
sensing provides the ideal platform for gathering quick, multi
temporal, cost-effective , multi-thematic and latest realistic
terrain information as required in the watershed approach.
Deptt Of Space in India took up a project called IMSD
(Integrated Mission on Sustainable Development) in order to
fulfill the information needs in watershed development
programme of Govt of India . Panchmahals was one such
district in Gujarat state for which preparations of water and land
resources development action plans were generated using
remote sensing and GIS. The present papers discusses the
details of this work with respect to the methodology adopted,
results and especially the implementation by the concerned
PIA's ( Project implementing agencies) in one of the talukas of
the district. The end-to-end approach of planning,
implementing and monitoring the benefits at the grass root level
have been adopted and the results are summarized in this paper.
2. AIMS AND OBJECTIVES:
The study aimed at using remote sensing and GIS as an
affective tool for grass root level planning, development and
implementation of natural resources within micro watersheds .
The objective is to have an end-to-end approach involving
preparation of water and land resources development action
plans at I:50, 000 scale using remotely sensed and collateral
data, sensitize the implementing agencies and end-user and
analyze the cost-benefit ratio of implementation of the resource
development action plans generated.
3. STUDY AREA
The study area lies in the Shehra Taluka of Godhra district
(earlier known as Panchmahals district) in Gujarat state.
671
4. DATA USED
IRS-LISS II geo-coded paper prints on 1:50,000 scale has been
used. Three seasons data ( Kharif, Rabi and Summer) were
selected for each geocoded paper print.
5. METHODOLOGY
Methodology was adopted from the Technical guidelines
prepared by NRSA (Anon 1995). Visual interpretation of the
satellite data was carried out to prepare thematic maps like
hydrogeomorphology, landuse, drainage and road network etc.
The maps were digitized in ARC/INFO GIS environment.
Other information like Soil and geology were obtained from
published maps. Field checks were carried out for the thematic
maps. All the thematic maps were integrated in ARC INFO
software in GIS environment. Later the PIA’s ( Project
implementing Agencies were sensitized and trained for
understanding and implementing the maps. The PIA's in turn
submitted the proposal to DRDA ( District Rural Development
Agency) for funding. Later the funded projects were
implemented by PIA's and the end user's (the farmers) were
interviewed for obtaining the feed back as regards the benefit
experienced by them in terms of increment of crop area/yield
and the resultant income there by. This was compared with the
cost incurred on the particular water harvesting structure and
the resultant cost benefit ratio were analysed to understand the
efficacy of the end-to-end study. ANaRDe Foundation is one
such PIA and Non-Governmental Organization, who was
entrusted the task of implementation in parts of Shehra taluka
by the DRDA. The water and land resources development
action plans were prepared by the personals of ANaRDe
Foundation on 1:50,000 scale and transferred on to cadastral
maps of the village, at Space Applications Centre, Ahmedabad
under the guidance of scientists from SAC. The resource
development plans were field checked and a report was
prepared with location and cost estimate of each suggested
structure. Report was submitted to the DRDA for approval and
funding. After the funds were released by DRDA for
implementing the water and land resources action plans the