The paper presents research on filtration characteristics of the alluvial sediments of the Stip aquifer in order to determine the degree of protection from ground water pollution. Previous studies ...determined that alluvial sediments of the Stip aquifer are built of two layers of different granulometric and filtration characteristics. The water-bearing layer is a coarse-grained porous media built of sand and gravel with hydraulic conductivity ranging from 48 to 280 m/day. This layer is overlaid with fine-grained sediments having low filtration characteristics. Overburden consists of dusty and clayey dusty sands with hydraulic conductivity ranging from 2×100 - 1.5×10-3 m/day. This research showed that overlay sediments don’t provide sufficient natural protection for ground water of the Stip aquifer and that they pertain to susceptible geological environment.
The paper presents research on filtration characteristics of the alluvial sediments of the Stip aquifer in order to determine the degree of protection from ground water pollution. Previous studies ...determined that alluvial sediments of the Stip aquifer are built of two layers of different granulometric and filtration characteristics. The water-bearing layer is a coarse-grained porous media built of sand and gravel with hydraulic conductivity ranging from 48 to 280 m/day. This layer is overlaid with fine-grained sediments having low filtration characteristics. Overburden consists of dusty and clayey dusty sands with hydraulic conductivity ranging from 2×10^sup 0^ - 1.5×10^sup -3^ m/day. This research showed that overlay sediments don't provide sufficient natural protection for ground water of the Stip aquifer and that they pertain to susceptible geological environment. PUBLICATION ABSTRACT
The paper presents research on filtration characteristics of the alluvial sediments of the Stip aquifer in order to determine the degree of protection from ground water pollution. Previous studies ...determined that alluvial sediments of the Stip aquifer are built of two layers of different granulometric and filtration characteristics. The water-bearing layer is a coarse-grained porous media built of sand and gravel with hydraulic conductivity ranging from 48 to 280 m/day. This layer is overlaid with fine-grained sediments having low filtration characteristics. Overburden consists of dusty and clayey dusty sands with hydraulic conductivity ranging from 2100 - 1.510-3 m/day. This research showed that overlay sediments don't provide sufficient natural protection for ground water of the Stip aquifer and that they pertain to susceptible geological environment. Key words: Stip aquifer, overlay sediments, contamination, ground water. Saetak U radu je predstavljeno istraivanje filtracijskih znacajki aluvijalnih sedimenata tipskog vodonosnika s ciljem utvrdivanja stupnja zatite podzemne vode od zagadenja. Prethodna istraivanja utvrdila su da se aluvijalni sedimenti tipskog vodonosnika sastoje od dva sloja razlicitih granulometrijskih i filtracijskih znacajki. Vodonosni sloj je krupnozrnata porozna sredina gradena od pijeska i ljunka s hidraulickom vodljivosti u rasponu od 40 do 280 m/dan. Ovaj sloj u krovini ima sitnozrne sedimente slabih filtracijskih znacajki. Sastoje se od pranjavih i glinovito prasnjavih pijesaka hidraulicke vodljivosti u rasponu od 2100 - 1.510-3 m/dan. Ovo istraivanje je pokazalo da pokrovne naslage ne osiguravaju dovoljnu prirodnu zatitu podzemne vode tipskog vodonosnika i da pripadaju osjetljivom geolokom okoliu. Kljucne rijeci: tipskog vodonosnika, pokrovne naslage, zagadenje, podzemna voda
Annualy renewed resources of drinking water on the Earth are about 45000 cu. km. With today's stage of development that quantity is enough for living 4.5 to 9 billion of people. As it is expected ...that by2025 the population on our planet will be over 8.5 billion people, it is clear that the next century will be characterized by the problem of ensuring enaugh quantities of drinking water. This problem will be particularly emphasized in the developing countries and large cities. In the poor countries of arid and subarid areas water deficit will cause the food production crisis and large migrations of the population with almost unpredistable sociological, economical and political consequences could be expected. In the developed world the "water crisis" will stimulate scientific and tehnological progress. The Republic of Croatia, if examined as a whole, regarding the climatic, hydrological, hydrogeological and demographic conditions, has planty of good quality water. It is our duty to preserve this resources for future generations. PUBLICATION ABSTRACT
Annualy renewed resources of drinking water on the Earth are about 45000 cu. km. With today's stage of development that quantity is enough for living 4.5 to 9 billion of people. As it is expected ...that by 2025 the population on our planet will be over 8.5 billion people, it is clear that the next century will be characterized by the problem of ensuring enaugh quantities of drinking water. This problem will be particularly emphasized in the developing countries and large cities. In the poor countries of arid and subarid areas water deficit will cause the food production crisis and large migrations of the population with almost unpredistable sociological, economical and political consequences could be expected. In the developed world the "water crisis" will stimulate scientific and tehnological progress. The Republic of Croatia, If examined as a whole, regarding the climatic, hydrological, hydrogeological and demographic conditions, has planty of good quality water. It is our duty to preserve this resources for future generations.
Godišnje obnovljive zalihe slatke vode na Zemlji iznose oko 45000 km3 . Pri današnjem stupnju razvitka ta količina dovoljna je za život 4,5 do 9 milijardi ljudi. S obzirom da se očekuje da će 2025. ...godine na našoj planeti živjeti preko 8,5 milijardi ljudi jasno je da će slijedeće stoljeće biti obilježeno problemom osiguranja dovoljnih količina čiste vode. Taj će problem biti posebno izražen u zemljama u razvoju i u velikim gradovima. U siromašnim zemljama aridnog i subaridnog područja nestašica vode izazvat će i krizu proizvodnje hrane, pa se mogu očekivati velike migracije stanovništva sa teško predvidivim sociološkim, gospodarskim i političkim posljedicama. U razvijenom svijetu "kriza" vode potaknut će znanstveni i tehnološki razvitak. Republika Hrvalska, gledano u cjelini, s obzirom na klimatske, hidrološke, hidrogeološke i demografske prilike, obiluje kvalitetnom vodom. Naš je dužnost da to blago sačuvamo za buduće generacije.
Annualy renewed resources of drinking water on the Earth are about 45000 cu. km. With today's stage of development that quantity is enough for living 4.5 to 9 billion of people. As it is expected that by 2025 the population on our planet will be over 8.5 billion people, it is clear that the next century will be characterized by the problem of ensuring enaugh quantities of drinking water. This problem will be particularly emphasized in the developing countries and large cities. In the poor countries of arid and subarid areas water deficit will cause the food production crisis and large migrations of the population with almost unpredistable sociological, economical and political consequences could be expected. In the developed world the "water crisis" will stimulate scientific and tehnological progress. The Republic of Croatia, if examined as a whole, regarding the climatic, hydrological, hydrogeological and demographic conditions, has planty of good quality water. It is our duty to preserve this resources for future generations.
Annualy renewed resources of drinking water on the Earth are about 45000 cu. km. With today's stage of development that quantity is enough for living 4.5 to 9 billion of people. As it is expected ...that by 2025 the population on our planet will be over 8.5 billion people, it is clear that the next century will be characterized by the problem of ensuring enaugh quantities of drinking water. This problem will be particularly emphasized in the developing countries and large cities. In the poor countries of arid and subarid areas water deficit will cause the food production crisis and large migrations of the population with almost unpredistable sociological, economical and political consequences could be expected. In the developed world the "water crisis" will stimulate scientific and tehnological progress. The Republic of Croatia, if examined as a whole, regarding the climatic, hydrological, hydrogeological and demographic conditions, has planty of good quality water. It is our duty to preserve this resources for future generations.
PDF
