MINI PERCOLATION TANK

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MINI PERCOLATION TANK

• Information Kit Produced by MYRADA and the
  International Institute of Rural Reconstruction

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WATER HARVESTING

• Capturing rainwater where it falls
• Provides drinking and irrigation water
• Increases groundwater recharge
• Reduces urban floods

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Traditional Water Harvesting Practices
Kund-Thar Desert
Talab
Zing-Ladakh
Johad- Alwar,Rajasthan
Kuis
Bamboo Drip Irrigation-Meghalaya
Eri-Tamil Nadu
Source http//www.rainharvesting.org
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CASE STUDY Mini Percolation
Tank
Washing away of fertile topsoil
Advice to build stone bunds
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Construction of stone bunds underway
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Digging of a small percolation tank
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Growing of two crops using stored water and
deposited silt.
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MYRADA Kadiri project (KIPDOW)

• De-silting of Reddy Kunta-
• silt applied to farmlands
• recharges groundwater

Diversion channel being dug near village Jowkula
of Anantapur district
Source http//www.myrada.org/kadri
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IMPACT

• Improvement in moisture regime
• Controlled topsoil erosion
• Increase in arable land
• Increase in cropping intensity
• Improved soil structure due to application of
  silt
• Trees on the bund increase biomass production
• Fields downstream growing crops due to
  percolation.

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BENEFITS-WATER HARVESTING

• Reduces sediment export from uplands
• Increase in crop production in areas where
  normally not feasible
• Reduction in desertification-improved
  reforestation
• Improvement in pastures
• Reduces soil erosion
• Flushes salt buildup from soils- increases land
  productivity
• Earthen bunds on small streams allow stored water
  in the lakes to percolate and recharge the
  groundwater body.

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• THANK YOU!
• 
  Ipsita Das
• 
  Roll No.18