GEOMORFOLOGIA APLICATĂ ĪN ANALIZA HAZARDELOR NATURALE

MARIA RĂDOANE, N. RĂDOANE

 

         ABSTRACT. - Applied geomorphology in the analysis of the natural hazards. The research proposed by us is on the role of the applied geomorphology to identify the geomorphic hazards in the drainage basins with human modifications. Concretely, we have had in attention the determination of the sediment sources, the sediment transfer and some evaluations on their effects on the various economical objectives, like as reservoirs, counter-channels of protection, water intake, highways, railways, bridges, embankments etc. The location of the researches is given in the fig. 1. In these areas the unit work methods have been used, with small differences from the river to river, in a direct relationship to the type of human intervention from that area. Geomorphic hazards identified and evaluated as rate of development and as volumes of deposits dislocated have been correlated with the human interventions, as deforestation, over-grazing, arranging of waste dumps, mining works, arranging of bridges, highways, channels etc, and the reservoirs and dams are the most numerous. All these anthropical structures have been exposed to the geomorphic hazards (especially, by the sediment movement from the source to delivery), so many human interventions have had hazardous tendencies by their response. Some data in the Table 1 are included and they are suggestive in this way.

 

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