Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIV
Written by Gabriela BIALI, Maria Catalina PASTIA, Paula COJOCARU, Carmen Elena MAFTEI
This study examines the geomorphological conditions of representative gravel extraction sites along the Moldova River and assesses the impact of riverbed material extraction on the stability of the riverbed and the sediment regeneration rate. The analyzed sector spans approximately 26 km, encompassing the stretch of the Moldova River between Păltinoasa and Cornu Luncii in Suceava County, with a particular focus on the Capu Câmpului extraction site. The intensity of gravel extraction activities is reflected in the variations of suspended sediment hydrographs, which exhibit an increasing trend over time in the Moldova River, contrasting with the general decreasing trend observed in other rivers of the Siret Basin. Utilizing GIS techniques, including orthophotoplans and ArcGIS 9.2 software (via Digital Elevation Model creation), calculations were made for the volumes of mineral aggregates potentially extractable between 2017 and 2021. Previous studies have demonstrated that riverbed material extraction can lead to significant modifications in river morphology, including channel erosion and changes in hydraulic regimes, with effects on aquatic biodiversity and water quality. In conclusion, the research underscores the importance of detailed evaluation of the impact of riverbed material extraction on the geomorphological and ecological stability of the Moldova River, to support the development of sustainable management practices for fluvial resources.
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