| Autor: |
Kuntala Bhusan, Dulal C. Goswami |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Landslide Science and Practice ISBN: 9783642313363 |
| DOI: |
10.1007/978-3-642-31337-0_11 |
| Popis: |
The North Eastern Region of India because of its relatively immature topography, fragile geologic base and active tectonics is vulnerable to landslide activities and the scenario is further accentuated due to various developmental activities. Almost one fifth of India’s landslide prone areas are located in this region. Guwahati, a major city in North East India is one such fast developing city that falls under medium to high category of the Global Landslide Susceptibility Map. The hills of the city have slopes between 15° and 25° where numbers of landslide affected sites are scattered. Almost 50 % of the soil samples analyzed from landslide affected sites showed low strength of the soils. Compared to the global threshold, Guwahati needs less intensity of rainfall (I = 28.7 D-0.890) for landsliding. Moreover, change in land use over a period of 30 years shows correlation between hill slope alteration and increment in landslide incidences. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
