The morphometric aspects of the Uz hydrographic basin

Abstract

The hydrographic basin of the river Uz is situated in the eastern part of Romania, with a total surface of 475 km2. It is asymmetric, elongated and with a total perimeter of 134.26 km. The river Uz is a right tributary of the river Trotuș and has a length of 46 km. It has a SW-EN orientation. On the river Uz can be found the Poiana Uzului pond built between 1965 and 1972, which has entered production in 1974. On the Izvorul Negru brook, tributary of the river Uz, following a landslide that blocked the riverbed, arose the Bălătău natural lake. The river Uz and its tributaries brought a big contribution to the landscape fragmentation and to the creation of its current energy. The hydrographic Uz basin has numerous relief forms (mountains with medium and small height, hills and depressions) with an average altitude of 982.345 m. The declivity of the slopes varies between 5˚ and 50˚, the meadows sectors between 1˚ and 3˚, while the interfluves and the bridge terraces between 0˚ and 6˚. From a geological standpoint, in the Uz hydrographic basin can be distinguished the Cretaceous and Paleogene flysch in the mountainous sector, while in the depression sector can be distinguished the Neogene zone. For the realization of this study was used as a spatial database the DTM with a scale of 1:5000 and with a zoom of 3 m and the SRTM with a scale of 1:25000, corresponding to the Uz basin. The methods being used were GIS, the graphic method, the analytical method, etc. The study was performed taking into consideration the necessity of an analysis which highlights the morphometric aspects of the Uz hydrographic basin.

DOI: 10.15551/lsgdc.v42i0.01