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MINI PERCOLATION TANK

MINI PERCOLATION TANK. Information Kit Produced by MYRADA and the International Institute of Rural Reconstruction. WATER HARVESTING. Capturing rainwater where it falls Provides drinking and irrigation water Increases groundwater recharge Reduces urban floods.

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MINI PERCOLATION TANK

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  1. MINI PERCOLATION TANK • Information Kit Produced by MYRADA and the International Institute of Rural Reconstruction

  2. WATER HARVESTING Capturing rainwater where it falls Provides drinking and irrigation water Increases groundwater recharge Reduces urban floods

  3. 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

  4. CASE STUDY: Mini Percolation Tank Washing away of fertile topsoil Advice to build stone bunds

  5. Construction of stone bunds underway

  6. Digging of a small percolation tank

  7. Growing of two crops using stored water and deposited silt.

  8. 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

  9. 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.

  10. 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.

  11. THANK YOU! Ipsita Das Roll No.18

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