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VOL. I · EST. 11.2025 
SatyaDheesh
सत्याधीश
India's Ground Truth Record
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WRD and Exnora International remove invasive seemai karuvelam from 20 Palar River irrigation tanks

GS3Economy · S&T · Environment · Security· Biotechnology & health research· Prelims·

Why in news

The Water Resources Department and Exnora International initiated a project to remove invasive seemai karuvelam from 20 irrigation tanks along the Palar River to enhance rainwater storage.

Background

The project, initiated by Collector P.S. Leela Alex, covers 200 hectares with a budget of ₹6 lakh per tank. Six tanks, including Thorapadi, have been completed, and excavated plants will be repurposed for paper and wood-brick units in southern districts.

Facts for Prelims

  • EnvironmentSeemai karuvelam is identified as an invasive species in the Palar River irrigation tanks.
  • PlaceThe project is located along the Palar River and includes Thorapadi tank.
  • FactThe project covers 200 hectares with a cost of ₹6 lakh per irrigation tank.

For Mains

Q. Discuss the ecological and hydrological impacts of invasive species on river basin irrigation systems and suggest sustainable management strategies.

Dimensions to cover in your answer

  • Hydrological impact: Reduced water-holding capacity of irrigation tanks due to invasive biomass
  • Circular economy: Repurposing invasive species into industrial raw materials for paper and wood-bricks

Keywords: Invasive species · Water resource management · Ecological restoration · Circular economy · Rainwater harvesting

Read the full news →Report a mistake in this noteHow notes are madeSource: The Hindu ↗Also: GS1 · Places in news / mappingAlso: GS3 · Species, protected areas & wetlands

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