The causes flooding. Mainly depends on local conditions and perversion pervert of nature, but in some areas, the action of man. An important part of the flood conditions that have been increased.,,The characteristics and the components of the shape of the basin, basin. Topography of the watershed.The type of soil, the vegetation covering area and the decline of the watersheds in seawater, the change of environment. The expansion of the urban area, and the destruction of the existing drainage system in nature, land subsidence
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