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OBSERVATIONS REGARDING THE VARIATION OF PHYSICAL-CHEMICAL AND BIOLOGICAL CLASSES OF QUALITY OF UZ RIVER


DELIA GHEORGHE, FLORIAN PRISECARU

Issue:

SCSB, Volume XIX

Section:

Volume XIX - Animal Biology

Abstract:

The river Uz is one of the main affluent of Trotus River and especially of the superior basin of Trotus river. On this range on find the accumulation Poiana Uzului, an accumulation lake utilized for the alimentation with water of cities Bacau, Darmanesti, Comanesti, Tg Ocna and other.

In the same time in the hydrographic basin of Uz River on find different protected areas, for example scientific reservations with local importance (Bolatau Lake or Izvorul Alb), or protected areas from Nature 2000 network, the site with communitary importance Creasta Nemirei.

As a result of studies accomplished during many years the entire Uz River can be classified as being in a very good ecological state, both from biological and physical-chemical point of view, with a low pollution degree.

In the section upstream of Poiana Uzului Lake the waters of Uz Piver have a very low degree of pollution due to the fact that in the upstream area of poiana Uzului accumulation lake there are nor antropic sources of pollution or natural sources of pollution.

The section downstream of Poiana Uzului Lake, due to the hydro-morphogical alterations due to the presence of the accumulation lake, that impress a strongly modified character, on observed that the aquatic ecosystem is not significantly changed. Thus on conclude that the downstream section can also be classified as being in a very good ecological state.

Still in the conditions imposed by the Cadre Directive regarding the Water 60/2000 EC, the area situated between the sections upstream and downstream of Poiana Uzului Lake, from hydro-morphological point of view, represents a sector of water strongly modified.

Keywords:

The Uz River, oviation of physical – chemical and biological closes of quality-monitoring.

Code [ID]:

SCSB201019V19S01A0003 [0003263]

Full paper:

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