When forests are destroyed, causing a stir. As a result, there is no plant cover and root wood adhesion of soil. Absorption of water into underground more easily, but most of the landslide was not caused by cutting trees, most of the landslide occurred because of the mass until the torrent of soil on slope instability. The depth of the landslide over the root zone is mostly trees 10-20 meters underground, thus dropping down with the trees.
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