At present one of the most important problems of water management in accordance with requirements of Water Frame Directive (WFD) is counteract of worsen on water bodies condition and to end of year 2015 achievement good conditions all waters. For surface water “good state” be appointed by “the good ecological state”. Ecological conditions accordance with FWD determined biological quality elements, helped by hydromorphological and physics – chemical quality elements. It to it fully match the requirements the FWD to assessment of quality of surfers waters was one should introduce hydromorphological assessment. It in many European countries, in this also in Poland, the row of methods was has worked out was taking into account the integrated methods of assessment of quality rivers. Methods these by biological component and phisics – chemical the structural features of surface waters take into account in this: hydrological regime, continuity of river, morphological conditions. In article will be introduced applied in countries of European Union the comparison of methods with applied in Poland in the light of recommendations the FWD and standards of CEN. ...
Environmental compensation is a set of actions. These actions should take to restore natural balance on the given area, compensating the damage to the environment through undertaking the action plans and maintaining the landscape amenities (Article 3 of the Environmental Protection Law). They including hydrotechnical constructions, groundworks, soil reclamation, afforestation, tree planting or developing vegetation concentration sites, that are leading. Environmental compensation is highly recommended to repair the harm to the environment especially when realization of an investment disabled the protection of the environmental elements. The required range of environmental compensation is issued by the decision of the environmental conditioning for the investments with the environmental impact assessment already made (Article 75 of the Environmental Protection Low). The paper presents an inventory of the compensation actions that allow for reducing the negative impact of hydrotechnical constructions on the ecosystem of rivers. ...
Restoration of rivers self-purification ability is an important part of the efforts to improve surface waters quality both in Poland and in the world. River regulation works are indifferent neither for the environment nor for the ecosystem of the river, as they change the ability of river waters self-purification. This article presents results of researches on changes of oxygenation and BZT5, as well as water temperature and pH in the hydrological year 2003/04 on regulated and unregulated parts of the Smortawa River. In the progress of the research, conditions of self-purification of the river have been assessed. ...
The Smortawa River, the right-hand sided tributary of the Odra River, is a typical lowland river which sources are located at 175 m a.s.l. south-east from town Namysłów. The mouth is located in km223–350 of Odra River, on 124 m a.s.l. near town Jelcz. In the lower and upper course the river is improved and in the middle course it has kept its natural character. At present according to Water Frame Directive and Polish Water Law we are obliged to create an assessment of ecological state of rivers. One of elements of this assessment is the analysis of hydromorphological parameters variability as supporting parameters for biological assessment. In the article the characteristic of hydromorphological parameters by polish methods of Ilnicki and Lewandowski are are introduced. They describe the changes of these parameters on every separete research section. Moreover with the help of the probability analysis by the Ward method, the similarity is estimated among studied hydromorphological parameters. ...
