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For the Pinang River, originating in the western highlands of Penang Island, the nature, sources and extent of pollution were studied. The fiver water samples collected at five selected sites were analyzed for various physical and chemical parameters, namely temperature, DO, BOD, COD, SS, pH, ammoniac nitrogen (AN), and conductance. Long-term data of rainfall and temperature were analyzed to determine the seasonal variations of the streamflow. The streamflow during the dry season is extremely low compared to the wet season, thus concentrations of contaminants derived from point pollution source increase due to lack of rainfall and runoff events. On the contrary, in the predominantly urban and agricultural catchments, non-point pollution source increases during rainy season through seepage and runoff. Effects of seasonal variations consequently determine the quantity and quality of the water parameters. The Jelutong River, the Dondang River and the Air ltam River carry the seepage from widely urban and residential areas to the main Pinang River systems. Water quality of the Pinang River at different points assessed by the water quality indices was compared. According to the quality indices during the study period, water quality in the upper reaches of the river is medium to good. It dwindled in the plains, due to the seepage from urban areas and discharges from the industrial and agricultural lands. KEY WORDS: hydrology; landscape ecology; seasonal variations; water quality index; watershed CLC number: P933; X522 Document code: A
For the Pinang River, originating in the western highlands of Penang Island, the nature, sources and extent of pollution were studied. The fiver water samples collected at five selected sites were analyzed for various physical and chemical parameters, namely temperature, DO, BOD, COD, SS, pH, ammoniac nitrogen (AN), and conductance. Long-term data of rainfall and temperature were analyzed to determine the seasonal variations of the streamflow. The streamflow during the dry season is extremely low compared to the wet season, thus concentrations of contaminants derived from point pollution source increase due to lack of rainfall and runoff events. On the contrary, in the predominantly urban and agricultural catchments, non-point pollution source increases during rainy season through seepage and runoff. Effects of seasonal variations consequently determine the quantity and quality of the water parameters. The Jelutong River, the Dondang River and the Air ltam River carry the seepage from widely urban and residential areas to the main Pinang River systems. Water quality of the Pinang River at different points assessed by the water quality indices was compared. According to the quality indices during the study period, water quality in the upper reaches of the river is medium to good. It dwindled in the plains, due to the seepage from urban areas and discharges from the industrial and agricultural lands. KEY WORDS: hydrology; landscape ecology; seasonal variations; water quality index; watershed CLC number: P933; X522 Document code: A
Veliki Bački Kanal (VBK) is a very important waterway in Serbia and part of the Danube-Tisza-Danube hydro-system. VBK runs through the central part of Bačka, connecting the rivers of Danube and Tisza, and as such possesses high unused tourism potential. In order to develop tourism in this region, local residents' attitudes are being investigated in relation to the use of VBK for recreational and tourism purposes. The data obtained are analyzed in the statistical program SPSS. The sample comprised 500 respondents in ten settlements. In order to use a particular water surface for recreation and tourism development, it is necessary to have water of adequate quality. Water quality of watercourses is determined on the basis of the water quality index (WQI), a qualification system for describing water quality of surface waters. The research results showed that along the entire course of VBK, there are sections which are clean and entirely suitable for tourism development and sections which are completely degraded. Local residents have positive attitudes towards tourism development of VBK, in particular towards rural and ecotourism development. The results obtained offer an opportunity to determine guidelines which can influence tourism development in these and similar areas. RÉSUMÉLa qualité de l'eau comme indicateur de l'attitude des riverains vis-à-vis du développement du tourisme : une étude de cas des populations le long du canal Veliki Backi, Serbi Veliki Bački Kanal (VBK) est une voie navigable très importante en Serbie et une partie de l'hydrosystème Danube-Tisza-Danube. VBK traverse la partie centrale de la région Bačka reliant les fleuves Danube et Tisza, et en tant que tel possède un fort potentiel touristique encore inutilisé. Afin de développer le tourisme dans cette région, les attitudes des résidents locaux par rapport à l'utilisation de VBK à des fins récréatives et à des fins touristiques ont été étudiées. Les données obtenues sont analysées avec le logiciel statistique SPSS. L'échantillon a comporté 500 répondants de dix populations. Pour utiliser une surface d'eau notamment pour le développement des loisirs et du tourisme, il est nécessaire d'avoir de l'eau de qualité adéquate. La qualité de l'eau des cours d'eau est déterminée sur la base du système de qualification de la qualité des eaux de surface par la méthode de Mots-clés :qualité de l'eau, tourisme, Veliki Baéki canal Knowledge and Management of Aquatic Ecosystems (2012) 404, 09 © ONEMA, 2012 http://www.kmae-journal.org DOI: 10.1051/kmae/2012003 Article publié par EDP Sciences M. Pantelić et al.: Knowl. Managt. Aquatic Ecosyst. (2012) 404, 09 09p2 l'indice de qualité de l'eau (WQI). Les résultats des recherches ont montré que le long du parcours complet de VBK, il y a des sections qui sont propres et tout à fait convenables pour le développement du tourisme et des parties qui sont complè-tement dégradées. Les résidents locaux ont des attitudes positives à l'égard du développement du tourisme de VBK, en particulier vers le dé...
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