MINI PERCOLATION TANK

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

WATER HARVESTINGCapturing rainwater where it falls

Provides drinking and irrigation water

Increases groundwater recharge

Reduces urban floods

Traditional Water Harvesting PracticesKund-Thar DesertJohad- Alwar,RajasthanZing-LadakhTalabKuisBamboo Drip Irrigation-MeghalayaEri-Tamil NaduSource: http://www.rainharvesting.org

CASE STUDY: Mini Percolation TankWashing away of fertile topsoilAdvice to build stone bunds

Construction of stone bunds underway

Digging of a small percolation tank

Growing of two crops using stored water and deposited silt.

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

IMPACTImprovement in moisture regimeControlled topsoil erosionIncrease in arable landIncrease in cropping intensityImproved soil structure due to application of siltTrees on the bund increase biomass productionFields downstream growing crops due to percolation.

BENEFITS-WATER HARVESTINGReduces sediment export from uplandsIncrease in crop production in areas where normally not feasibleReduction in desertification-improved reforestationImprovement in pasturesReduces soil erosionFlushes salt buildup from soils- increases land productivityEarthen bunds on small streams allow stored water in the lakes to percolate and recharge the groundwater body.

THANK YOU!

Ipsita Das Roll No.18