PRESENTATION ON

IRRIGATION ENGINEERING

IRRIGATION ENGINEERINGIRRIGATION:-Irrigation is defined as the process of artificially

supplying water to soil for raising crops.

IRRIGATION ENGINEERING:- It is the science dealing with planning, designing, construction, operation and maintenance of various irrigation works

OBJECTIVES OF IRRIGATION

To Supply Water Partially or Totally for Crop Need

To Cool both the Soil and the PlantTo Leach Excess SaltsTo improve Groundwater storageTo Facilitate continuous cropping

NECESSITY OF IRRIGATION

Inadequate rainfallNon-uniform rainfallGrowing number of crops during yearGrowing perennial cropsGrowing superior cropsIncreasing the yield of cropsInsurance against crops

TYPES OF IRRIGATION SYSTEMClassification based on availability of water

Irrigation system

Flow irrigation

Lift irrigation

Perennial irrigation

As per source

Inundation irrigation

Well irrigation

Lift canal irrigation

Direct irrigation

Storage irrigation

Combined irrigation

Surface Irrigation

SPRINKLER IRRIGATION

DRIP IRRIGATION

CANALS;- An irrigation canal is a waterway, often man-made or enhanced, built for the purpose of carrying water from a source such as a lake, river, or stream, to soil used for farming or landscaping.

CANAL

IMPORTANCE OF CANAL:- 1. They are used for supplying water from a river flowing at far-off distance.2. They provide facilities for drinking, bathing, & washing purposes.3. They are helpful in increasing the employment .4. They increase the revenue(profit) to govt.5. They are helpful in improving the production of the crops.

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Dams:

A dam may be defined as an obstruction or a barrier built across a stream or a river.

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Purpose of dams:

Generation of hydropower electricityFor agricultural and irrigation purposesFor fisheryTo prevent the flooding during high water

flowsTo diverse the water by maintaining required

heights.

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Various types of damsEarth damsRock-fill damsSolid masonry gravity

damsHollow masonry gravity

damsTimber damsSteel damsArch dams

TUBE-WELL Tube well is an excavation or structure

created in the ground by digging, boring, or drilling to access groundwater in underground.

Tube wells classificationScreen wellsSlotted wells Cavity wells

Cavity type

Screen type