LiDAR Based Survey of Forest Areas

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LiDAR Based Survey of Forest Areas

Part of: GS Prelims and GS -III – Sci and Tech; Environment

In news

  • Ministry: Ministry of Environment, Forests and Climate change
  • The 10 mapped states are: Assam, Bihar, Chhattisgarh, Goa, Jharkhand, Madhya Pradesh, Maharashtra, Manipur, Nagaland, and Tripura.
  • The project was awarded to WAPCOS in July 2020 at a cost of over Rs. 18 crore for implementation in 26 states.

Key observations

  • One major ridge inside a forest block is identified in these states with an average area of 10,000 ha selected in each State.

Significance of the study

  • It will help us in identifying areas which need groundwater recharge 
  • It will help in catching rainwater and prevent stream run-off
  • It will help in recommending different types of Soil & Water conservation structures

About LiDAR

  • It is a remote sensing method that uses light in the form of a pulsed laser to measure ranges & variable distances.
  • These light pulses generate precise, three-dimensional information about the shape of the Earth and its surface characteristics.
  • It consists of a laser, a scanner, and a specialized Global Positioning System (GPS) receiver.
  • Applications:
    • Surveying, archaeology, geography, geomorphology, seismology, forestry, etc.



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