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LiDAR Based Survey of Forest Areas

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

In news

Recently, the Detailed Project Reports (DPRs) of LiDAR (Light Detection and Ranging) based survey of forest areas in ten states was released recently.

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

It is a first of its kind study using LiDAR technology.
It will help augment water and fodder in jungle areas thereby reducing human-animal conflict.
States will be given Compensatory Afforestation Fund Management and Planning Authority (CAMPA) funds to use in this project.

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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