Experience of DBIImplementation in IndiaLivolink Foundation, Bhubaneswar
Background•A diversion based irrigation system is one which diverts aportion of water from a natural stream/water course/riverand uses it with or without intermediate storage for thepurpose of irrigating crops and for other human ends.• SDTT has been implementing a programme on DBI since2009 to promote the development of small scale irrigationthrough diversion of water from streams.•The DBI Secretariat set up in Bhubaneswar and housed inLivolink Foundation, besides providing support to theNGOs is also functioning as an extended arm of the Trust inprogramme managementDiversion based irrigationsystems have been in voguefor possibly decades inregions that haveappropriate features & areknown by different namesin different parts of thecountry: Kul in HimachalPradesh, Tar Bandh inMahakoshal, Phad inMaharashtra, Dongs innorth Assam, Zebo inNagaland, Khadins inRajasthan, Pukhar inJhalawar areas of MadhyaPradesh andRajasthan, Ahar Pyne inKaimur plateau andadjacent areas of Jharkhandand South Bihar
TANKA/ KUND/ KUNDIIn the desert and arid areas of Rajasthan & Gujarat people build uniqueunderground structures of various shapes and sizes to collect rain waterfor drinking purposes. These structures called Tankas, Kund or Kundisare constructed in a variety of places like court yards, in front of housesand temples, in open agricultural fields, barren lands etc.
GONCHIGonchi is a diversion-based irrigation system developed by the local people and isin practice in parts of Andhra Pradesh for over three centuries. It involves sharingsurface water diverted by gravity from natural streams and rivers. At the head ofthese channels, farmers prepared large pits (locally called talipiri) on stream /river bed from which the oozed water will be diverted to the channel by gravityflow.
Ahar PyneAhar pye system is an indigenous irrigation technology of South Bihar. An Aharis a rectangular embankment type water harvesting structure, i.e. a catchmentbasin embankment on three sides & fourth side being the natural gradient ofland itself and pyne are the irrigation channels
DongThese are traditional irrigation system of plains of Assam.
Pipe based Gravity Flow System•Irrigation system using Pipe costs around 4 to 5lakhs per scheme and irrigates around 40 to 60 acre• Average cost using pipe: Rs. 10,000/acres includingagriculture support• Additional income through Rabi & Kharif inmedium & upland.• AVERAGE COST IN DBI PROGRAM : Rs 4000/ acre• Any MI scheme costs Rs. 65,000/acre • Provides irrigation to poor, who canmanage it• Nearly zero maintenance cost helpspoor adopt it• Helps poor attain food sufficiencyand enhance cash income• Barefoot engineers can be promotedfor replication• Easy to implement and shortexecution period• Small streams are tapped• 24 hrs water supply fulfills domesticneeds reducing women drudgery
OutreachThe programme is being implemented by 36 NGO partners & 38 Co-partnersacross 98 blocks of 47 districts of 13 states to grants support Rs 3,806 lakhStateNo. ofOrganizationNo. ofdistrictsAndhra Pradesh 2 1Assam 4 5Bihar 4 2Chhatisgarh 1 1Jharkhand 5 2Madhya Pradesh 1 1Maharashtra 11 5Manipur 14 6Meghalaya 2 1Odisha 30 17Rajasthan 4 2Tripura 2 1West Bengal 3 313 states 74 47
2 44 15 1111423042 3No of Organization1 5 212156117213No of districts AndhraPradeshAssamBiharChhatisgarhJharkhandMadhyaPradeshMaharashtraManipurMeghalayaOdishaRajasthanTripura
Irrigation Potential DevelopedAgricultural seasons Command area before DBI Command area after DBIKharif 24,775 40,007Rabi 10,604 26,436Summer 1,767 4,052Total 37,146 70,49501000020000300004000050000600007000080000Kharif Rabi Summer Total38%60%56%47%Command areabefore DBICommand areaafter DBI
Cost of Irrigation potential generation(state-wise)100007465290300040006210167718400600002000400060008000100001200014000160001800020000Cost per Acre
Cost of Irrigation potential generation(structure-wise)540070002000350074662101000024000050001000015000200002500030000Ahar-Pyne Check damwithChannelWorkDiversionWeir withEarthenCanalDong Gonchi Phad pipe basedgravity fedIrrigationTankaCost per acre
Provision for Drinking water• Water supply for domestic use at HH level• Ensuring drinking water supply natural/low costfiltration system• Addressing the issue of women drudgery• Promoting homestead kitchen garden by providingwater at door step
Innovation in DBI: Hydraulic Ram PumpsystemA hydraulic ram pump is a device, which uses theenergy of falling water to lift a lesser amount ofwater to a higher elevation than the source.• Low cost• No fuel needed• Runs 24 hours per day• Low maintenance
• Minimum Drive Head required 1.5m• It lifts 10 to 20% of the flowing water 10 times the original head• Discharge per day depends on Drive Head, Delivery Head and EfficiencyOf Pump and No. of Pumps.• Q (Discharge) = H (drive) X Q (wr) X ŋ (pump)-----------------------------------------H (delivery)Where,• Q (Discharge) =Discharge of a pump at delivery point in lps or lpm• H (drive) = Drive Head to run the Hydraulic Ram Pump in mt.• Q (wr)= Water Requirement to run a pump( 1.5 to 2lps or 90 to 120lpm)• ŋ (pump)= Efficiency of the pump (50 to 70%)• H (delivery)= Delivery Head in m