Madhav AgarwalAIR 16 · CSE 2024 · 145 wordsTheir whole copy
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The phenomenon of land subsidence came to news due to disasters in JOSHIMATH.
The phenomenon see where a portion of land recedes downward as compared to adjacent landmass. Reasons for the same: (A) Natural Reasons:
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land subsidence
- Label: Normal level
- Label: land subsided down
- Arrows pointing downward showing the subsidence of the land block relative to the adjacent land.
- Caption: Fig: Land subsidence
Reasons for the same: (A) Natural Reasons: (1) Changing river course of nearby water bodies. (2) 'Aquifer Punching' that can release massive water. (3) Earthquakes leading to weakening of soil
(B) Anthropogenic : (1) Explosives used for infrastructure development (2) Population and tourism greater than ecological capacity. (3) Stagnation of water from household wastes at a particular site → percolation and weaker soil.
Measures that can be taken: (1) Hazard Zonation Mapping (2) Environmental Regulations need to be followed and controlled use of Massive infrastructure. (3) Early Monitoring system to predict future sites (4) Capacity Building and awareness of people via Media
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For a sustainable future, we need to follow P3 principles - "People, Profit and Planet".