![Page 1: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/1.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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Appropriate Water ManagementObjectives for Irrigation in Asia
Chris PerryADB Manila
April 2012
![Page 2: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/2.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
http://slidepdf.com/reader/full/2012-aif-d2s5-ppt-appropriate-water-management-objectives-for-irrigation-in 2/20
Context...
Scarcity of water
Competition amongsectors
![Page 3: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/3.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
http://slidepdf.com/reader/full/2012-aif-d2s5-ppt-appropriate-water-management-objectives-for-irrigation-in 3/20
Context...
Scarcity of water
Competition amongsectors
So we need terminology that “works” across sectors
![Page 4: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/4.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
http://slidepdf.com/reader/full/2012-aif-d2s5-ppt-appropriate-water-management-objectives-for-irrigation-in 4/20
Beware of value-laden terms...
“Efficiency”
“Improvement”
“Upgraded”
“Water saving”
These terms mean different
things in different sectors
![Page 5: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/5.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
http://slidepdf.com/reader/full/2012-aif-d2s5-ppt-appropriate-water-management-objectives-for-irrigation-in 5/20
Neutral terminology for all sectors...
•Water applied for any purpose goes to...
Consumed fraction
• Beneficial consumption• Non-beneficial consumption
Non-consumed fraction
• Recoverable
• Non-recoverable
» These terms mean the samethings in all sectors!
![Page 6: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/6.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
http://slidepdf.com/reader/full/2012-aif-d2s5-ppt-appropriate-water-management-objectives-for-irrigation-in 6/20
Worry about...
Consumed fraction
• Beneficial consumption
• Non-beneficial consumption
Non-consumed fraction
• Recoverable
• Non-recoverable
![Page 7: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/7.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
http://slidepdf.com/reader/full/2012-aif-d2s5-ppt-appropriate-water-management-objectives-for-irrigation-in 7/20
And note that...
Healthier forests
Upgraded catchments
Water harvesting Improved irrigation
Stopping leaks
ALL TEND TO INCREASE
CONSUMPTIVE USE
and/or
REDUCE RETURN FLOWS
![Page 8: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/8.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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What does “consumption
accounting” mean for irrigationstrategy?
![Page 9: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/9.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
http://slidepdf.com/reader/full/2012-aif-d2s5-ppt-appropriate-water-management-objectives-for-irrigation-in 9/20
• Productivity of Land and Water
ET、Yield and water productivity
![Page 10: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/10.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
http://slidepdf.com/reader/full/2012-aif-d2s5-ppt-appropriate-water-management-objectives-for-irrigation-in 10/20
ET, Yield and water productivity100.0 200.0 300.0 400.0 500.0 600.0 700.0
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Yield/ha and per M3
Y/ha
Y/m3
Evapotranspiration (mm)
Y i e l d / h a ( k g )
Y i e l d / m 3 ( k g )
Productivity of Land and Water
![Page 11: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/11.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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ET, Yield and water productivity100.0 200.0 300.0 400.0 500.0 600.0 700.00
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Yield/ha and per M3
Y/ha
Y/m3
Evapotranspiration (mm)
Y i e l d / h a ( k g )
Y i e l d / m 3 ( k g )
Productivity of Land and Water
Short of land
![Page 12: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/12.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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ET, Yield and water productivity100.0 200.0 300.0 400.0 500.0 600.0 700.0
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Yield/ha and per M3
Y/ha
Y/m3
Evapotranspiration (mm)
Y i e l d / h a ( k g )
Y i e l d / m 3 ( k g )
Productivity of Land and Water
Short of WATER
![Page 13: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/13.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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How do we reach the “water short”
target area in irrigated agriculture?
Ration water per farmer
That way each knows it is
scarce and will avoid waste
H d h h h
![Page 14: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/14.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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How do we reach the “water short”
target area in irrigated agriculture?
Ration water per farmer
TELL the farmer what theservice will be
This allows the farmer to
make plans
H d h h h
![Page 15: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/15.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
http://slidepdf.com/reader/full/2012-aif-d2s5-ppt-appropriate-water-management-objectives-for-irrigation-in 15/20
How do we reach the “water short”
target area in irrigated agriculture?
Ration water per farmer
TELL the farmer what the
service will be
Base that information on a realistic
assessment of:
Likely water available
Infrastructure sophistication andcondition
Staffing
Farmer discipline
H d h h “ h ”
![Page 16: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/16.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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How do we reach the “water short”
target area in irrigated agriculture?
• The more farmers know about the
service, the better they will use it
• The better it is used, the
more “crop per drop”
• And the better the dialogue
between agency and farmer toimprove service
![Page 17: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/17.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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To sum up...
• Talk about water in cross-
sectoral terminology
• Evaluate irrigation
strategy in that same
terminology – it will affect
objectives
• Tell the farmers all you can!!
![Page 18: 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry](https://reader033.vdocuments.mx/reader033/viewer/2022052709/577d1f941a28ab4e1e90e2a0/html5/thumbnails/18.jpg)
8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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Thank you for your attention...
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8/2/2019 2012 AIF, D2S5 PPT Appropriate Water Management Objectives for Irrigation in Asia by Dr. Chris J. Perry
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