Landslides
Landslides
Section titled “Landslides”2020-11-10 07:50:06
- Type of mass wasting, downward movt of rock debris, 15% of land area, north movt of IN plate
Vulnerability Zones -
Section titled “Vulnerability Zones -”- Very high V Z - highly unstable, relatively young mountain, high rainfall, steep slope, WG, Nilgiris, intense human activities
- High V Z - intensity and frequency little less than VHVZ
- Moderate to Low V Z - Trans Himalayan areas of Ladakh, Spiti Valley, Aravalli, WG EG, Deccan plateau, mining areas of IN
Causes
Section titled “Causes”- Heavy rain, deforestation, Earthquakes, building of roads - dislodges rocks/ support structures, shifting agri NE part of IN, Urbanisation
Consequences
Section titled “Consequences”- Short term impact - loss of natural beauty, roadblocks, river channels blocked, diversion of river courses, loss of life and property
- Long term impact - landscape changes can be permanent, loss of cultivable land, env impacts, drying up of sources of water
- Management of Landslides -
- Regulation Enforcement, Emergency preparedness, Public Awareness Education, Capacity building, Knowledge Network, R&D
Hazard Mitigation
Section titled “Hazard Mitigation”- adopt area specific measures, hazard mapping, restriction on construction dev activities, promote large scale afforestation program, terrace farming, retaining walls, Restrict dev in prone areas, prepare codes on excavation, protect existing dev, insurance compensation
Challenges
Section titled “Challenges”- integrate DM plans at different levels, techno legal regime to introduce slope protection, zero tolerance against deliberate env violence, innovation in management of team, Estd knowledge network