RISCURI INDUSE DE AMENAJAREA HIDROTEHNICĂ A IAZURILOR DE PE VALEA ŞESULUI
(CÂMPIA TRANSILVANIEI)
ABSTRACT. - Risks induced by the hydrotechnical amenagement of the ponds to the Şes Valley (Transsylvanian Plain). The waterside of Şes valley (tributary of Luduş river) in downstream sector with Bologa valley was characterized before the year 1970 whit the presence frequent sloughs and swamps, invaded by hydrophilic vegetation. After the 1970-1975 flooding it has been imposed the rearrange of the sector, which has generated the appearance of the ponds between confluence’s of Bologa-Şes and Şes-Luduş. The modification of longitudinal profile of the river in the inferior branch has broth important changes not only in the valley’s morphology, but in the specific evolution of the laccustric basins as well; it is about an pronounced process of minor bed agradation in upstream sector, resulting overflows in waterside for each flash flood in the Văleni’s area. Another risk element is represented by the demotion of the banks where the dikes are missing. The cause is due to laccustric abrasion.