Workshop: Community mapping and empowerment by Nagesh Kolagani
-
Upload
mapwindow-gis -
Category
Technology
-
view
446 -
download
1
description
Transcript of Workshop: Community mapping and empowerment by Nagesh Kolagani
![Page 1: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/1.jpg)
Community Mapping and Empowerment:Case Study of Water Management in a South Indian Village
3rd International Open Source GIS ConferenceVelp, The Netherlands
June 25-28, 2012
Nagesh Kolagani, Dr. Palaniappan Ramu and Dr. Koshy VargheseIndian Institute of Technology Madras, Chennai 600036 INDIA
![Page 2: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/2.jpg)
Location Map of Project Villages in South India
Parigi villages (22) (phase II)
E. Palaguttapalli village (phase I)
IIT Madras
![Page 3: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/3.jpg)
Up to 1970’s: Community-based Rain Water Harvesting
FOREST
STREAMS
RESERVOIRS
WELLS FARMS
![Page 4: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/4.jpg)
Up to 1970’s: Sustainable Water Usage
Number of wells: 76● Open wells
![Page 5: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/5.jpg)
During 1980’s and 1990’s: Excessive Water Usage
Number of wells: 198● Open wells● Tube wells
![Page 6: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/6.jpg)
Since 2002: Water Crisis
Number of wells: 59● Open wells● Tube wells
![Page 7: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/7.jpg)
Falling Ground Water Levels over Decades
1970's 1980's & 1990's post-2001
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0Ground level
Hard rock
![Page 8: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/8.jpg)
Water and Agriculture Over the Decades
Number of wellsArea under irrigationGround water table depth10-year return on investment
1970's 1980's & 1990's Post-2001
-150
-100
-50
0
50
100
150
200
250
![Page 9: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/9.jpg)
Ground Water Exploitation
Number of wellsArea under irrigationGround water table depth10-year return on investment
1970's 1980's & 1990's Post-2001
-150
-100
-50
0
50
100
150
200
250
1970's 1980's & 1990's Post-20010
1
2
3
4
5
6
7
8
9
Discharge / Recharge
![Page 10: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/10.jpg)
Economics of Irrigated Agriculture
Statistics of one project village:Number of households: 300Average land holding: 1 hectareAverage annual income: € 800
Losses in one such village:
€ 2,400 / family towards capital costs
€ 4,200 / year for government towards free electricity
![Page 11: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/11.jpg)
Water-intensive commercial cropsup to 2001
Problem: Water Crisis since 2002
Rain-fed subsistence cropssince 2002
![Page 12: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/12.jpg)
Solution: Water Harvesting Structures
![Page 13: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/13.jpg)
Blackboard Sketch of People's Suggestions
![Page 14: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/14.jpg)
Field Visits to Proposed Locations
![Page 15: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/15.jpg)
A Sample Plan for Proposed Structures
No location information for facilitating monitoring & visualization
![Page 16: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/16.jpg)
GPS/GIS Map of People's Suggestions
For monitoring & visualization; Enforces participation & field visits
![Page 17: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/17.jpg)
Social Benefit Analysis of Proposed Structures
For facilitating discussions among people
![Page 18: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/18.jpg)
A Structure Well-planned and Constructed by Neighbours
![Page 19: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/19.jpg)
Started working as a Successful Silt Trap within 1 Month
![Page 20: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/20.jpg)
Extending these Lessons to Other Villages
![Page 21: Workshop: Community mapping and empowerment by Nagesh Kolagani](https://reader034.fdocuments.net/reader034/viewer/2022042607/55836aa5d8b42a79658b4997/html5/thumbnails/21.jpg)
Thank You!
Credits: To the local youth & To the farmers