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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 10

Means of Irrigation - Canal Irrigation

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CISCE: Class 10

Key Points: Canal Irrigation

  • Canal irrigation supplies river water to distant agricultural fields through artificial channels and is the second most important means of irrigation in India.
  • There are two types of canals:
    Inundation (non-perennial) canals work only during floods, while perennial canals provide water throughout the year using dams or barrages.
  • Canal irrigation is highly developed in the Northern Plains due to perennial rivers, flat land and soft alluvial soil.
  • Advantages: It supports farming in dry regions, helps flood control, supplies fertile silt and boosted the Green Revolution in Punjab and Haryana.
  • Disadvantages: Excess water causes waterlogging, salinity, soil infertility and canal construction is costly and wastes cultivable land.
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