Sunday, March 27, 2011

Landslide March 26th 2011

"Landslides are aggravated by human activities. Human causes include:deforestation, cultivation and construction, which destabilize the already fragile slopes:

    * vibrations from machinery or traffic
    * blasting
    * earthwork which alters the shape of a slope, or which imposes new loads on an existing slope
    * in shallow soils, the removal of deep-rooted vegetation that binds colluvium to bedrock
    * Construction, agricultural or forestry activities (logging) which change the amount of water which infiltrates the soil."


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