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Recent Morphodynamic Changes of the Middle Course of the Barcău River Valley (North Western Romania). The issue regarding the evolution of Barcau valley, installed at the contact between the crystalline unit of Plopis Mountains and the marginal sedimentary basin of Simleu in north-western Romania, in conjunction with the environmental context of the Crişuri hydrographic basin, in which it is hierarchically integrated, has raised over time many discussions and assumptions. This article intends to reflect the spatial and typological changes issued in the river bed, based on cartographic material and DTMs (digital terrain models) available, using the overlaying technique. The results are then correlated with values of liquid and solid flow, and with anthropogenic interventions by sector. Two types of sectors were highlighted: sectors with stable morphodynamic and areas of extreme morphodynamic instability, where one can observe minor changes in bed configuration, which is naturally associated to changes in the geometry of perennial morphology and in the minor bed type.

Keywords: sectors of maximum morphodynamic liability, coefficient of sinuosity, meandering.