Search
Search Results
-
Hydrological Characteristi cs of Tisza Valley, the Hydrodynamic Modeling of River
4-12Views:119Conveyance capability has changed signifi cantly in the last decades of the Tisza River. As a result of human interventi ons and natural changes of the river bed the elevati ons and durability of fl oods are conti nuously growing. Increasingly higher fl oods are more and more threatening the sett lements of the region, agricultural areas and people’s livelihood. Hydrology and hydrodynamic modeling play an important role in avoiding fl ood damage as well as in the
solutions to mitigate the destructi on. -
Thoughts about the environmental flow – in terms of Dráva
100-106Views:96The importance of sustainability in today’s water management is unquestionable. Therefore, it is also recommended to apply the principle of sustainability in river management, such as it is the aim of the ongoing Ancient Dráva project. The term, environmental flow, intends to comprise a complex methodology not only from biophysical but also from a social angle; considering the different aspects of each method. Our target is to determine a possible holistic method which could be applied to the Dráva and its hungarian floodplain in oder to find a possible solution to the reconnection of the oxbow lakes into river mechanism. Our research is mainly based on hydrological data (Qmin, Qmax, Hmin, Hmax), but we will consider the special needs of the ecological environment, too.
-
Determination of three small streams’ chemical water quality in Budapest
69-75Views:133The location and development of cities has been influenced basically by various environmental factors. However, the relationship is bilateral, because not only the environment can affect the city, but the city can affect the environment in different ways, depending on recovery. This is especially true in the case of large cities such as Budapest where the different geological, geomorphological, hydrological, soil and bio-geographical conditions can be changed in very small areas, which implies that land use can be also modified as well. The aim of our study was to determine the chemical water quality of three small streams in Budapest which have same water flow and compare the field and the laboratory test results. Between many natural characteristics of these streams similarity is evident, however, several differences were found between the watersheds in terms of human land use. Statistical data analysis was performed as well, which was the aim to explore the relationship between the parameters. Overall, according to our study it can be concluded, the small streams have similar water chemical properties, but some parameters need special attention in the future, because the investigated small streams can be categorized into polluted and sometimes heavily polluted category.