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Karst hydrogeology of Lamprechtsofen (Leoganger Steinberge, Salzburg)

Abstract

The Leoganger Steinberge are a heavily karstified massif largely composed of Dachstein dolomite and limestone hosting the deepest through-trip cave in the world, Lamprechtsofen, whose frontal parts are developed as a show cave. Many parts of this 60 km-long and 1724 m-deep system are hydrologically active. 1.5 km behind the lower cave entrance Grüntopf stream and Kneippklamm stream merge to form the main cave stream. Another underground stream, Stainerhallen stream, flows through the eponymous hall of the show cave. Since 2007 water temperature, electrical conductivity and water level have been monitored in the Grüntopf and Kneippklamm stream. Water temperature and water level in the Stainerhallen and main cave stream have been measured since 2016.

The long-term dataset (2013–2017) shows that the water temperature of the cave streams (Grüntopf stream: 3.7–5.2°C; Kneippklamm stream: 5.1–5.9°C) is largely invariant, but the electrical conductivity varies strongly (Grüntopf stream: 107–210 µS/cm; Kneippklamm stream: 131–248 µS/cm) in response to snowmelt and precipitation events. The event water of the Kneippklamm stream is characterized by a low electrical conductivity and is then followed by slightly warmer and higher mineralized water derived from the phreatic zone. This dual flow pattern also explains the asymmetrical changes of the water level during snowmelt: the fast event water flows directly through vadose pathways to the measurement site, whereas the hydraulic (phreatic) response is delayed. The Grüntopf stream reacts to precipitation and snowmelt events by changes in the karst-water table, which can be explained by a piston flow-model. The Kneippklamm stream reveals evidence of a lifter system.

The altitude of the catchments was calculated using δ18O values of water samples from the underground streams and from surface precipitation. The Grüntopf stream shows the highest mean catchment (2280 m a.s.l.), which is in agreement with its daily fluctuations of the water level until August caused by long-lasting snowmelt. The Stainerhallen stream has the lowest catchment (average 1400 m a.s.l.). The catchments of the other two streams are at intermediate elevations (1770–1920 m a.s.l.). The integration of the catchment analyses and observations from tracer tests conducted in the 1970s showed that the latter reflected only one aspect of the karst water regime in this massif. During times of high recharge the water level rises, new flow paths are activated and the karst watershed shifts.

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Elemental profile of edible mushrooms from a forest near a major Romanian city

References [1] Kalač, P. (2013), A review of chemical composition and nutritional value of wild-growing and cultivated mushrooms. Journal of the Science of Food and Agriculture 93, 209–18. [2] Kalač, P. (2010), Trace element contents in European species of wild growing mushrooms: A review for the period 2000–2009, Food Chemistry 122, 2–15. [3] Kułdo, E., Jarzyńska, G., Gucia, M., Falandysz, J. (2014), Mineral constituents of edible parasol mushroom Macrolepiota procera (Scop. ex Fr.) Sing and soils beneath its fruiting bodies collected

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Bio-chemical methods in wasteprocessing

References Varheghyi, Gy. et al. "Removving of the heavy metals by bacteria" Bányaszati és koházatin lapok/Mining and Metallurgical letters 1973, pp. 9, 415 - 419. Kuhnhalmi, G. "Red sludge from production of the Al 2 O 3 - Ecological problem", Acta Metallurgica , 4, special Issue, 1/1998, pp. 145 - 149. Kafka, R. "Environmental strategy of ZSNP group". In: Proceeding VIII. Al symposium, Donovaly 1997. Kušnierová, M. & Štyriaková, I. "Influence of the

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Response of Test-Organisms to Different Na and Cu Salts

latifolia plants, growing in a substrate containing sewage sludge compost and watered with metaliferus water. -Ecological Engineering, 20: 65-74. Marciulioniene D., Montvydiene D., Kazlauskiene N., Svecevicius G., 2002: Comparative analysis of the sensitivity of test-organisms of different phylogenetic level and life stages to heavy metals. - Environmental and Chemical Physics, 24(2): 73-78. Marschner H., 1995: Mineral nutrition of higher plants. - London. McKim J.M., 1985: Early life stage toxicity tests. -In: Rand G.M., Petrocelli R. (eds), Fundamentals of

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Detection of heavy metals in common vegetables at Varaždin City Market, Croatia

. In: Marschner P, editor. Mineral nutrition of higher plants. 3rd ed. London: Academic Press; 2012. p. 3-5. 19. Broadley M, Brown P, Cakmak I, Rengel Z, Zhao F. Function of nutrients: micronutrients. In: Marschner P, editor. Mineral nutrition of higher plants. 3rd ed. London: Academic Press; 2012. p. 191-248. 20. Ali H, Khan E, Sajad MA. Phytoremediation of heavy metals - Concepts and applications. Chemosphere 2013;91:869-81. 21. White PJ. Ion uptake mechanisms of individual cells and roots: short-distance transport

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Oral Ingestion Risks of Heavy Metal Accumulation at Top Soils of Automobile Workshops in Owerri Capital City of Imo State, Nigeria

.; Miler, R.A. Microbial Processes of Heavy Metal Removal from Carbon Deficient effluents in constructed wetlands. Eng. Life. Sci. 2004 , 4(5) , 403–411. 5. Begum, A.; Ramaiah, M.; Harikrishna, K. I.; Veena, K. Analysis of Heavy Metals Concentration in Soil and Litchens from Various Localities of Hosur Road, Bangalore, India. Orbital: Electron. J. Chem. 2009 , 6(1) , 13-22. 6. Huerta-Diaz, M.D.; Morse, J.W. Pyritization of Trace Metals in Anoxic Marine Sediments. Geochimica et Cosmochimica Acta 1992 , 56 , 2681-2702. 7. Cooper, D.C.; Neal

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Metal contents in fish and crustaceans from brackish, freshwater and marine systems in South-Western Nigeria

). Marine Pollution Bulletin, 50, 993-1018. Fung, L. H. A., Antoine, J. M. R., Grant, C. N., Buddo, D. S. A. (2013): Evaluation of dietary exposure to minerals, trace elements and heavy metals from the muscle tissue of the lionfish Pterois volitans (Linnaeus 1758). Food Chemical Toxicology, 60, 205-212. George, F., Ogamune, R., Odulate, D., Arowolo, T. (2013): Seasonal Variation in Heavy Metal Content of Tongue Sole, Cynoglossus brownii and Croaker, Pseudotolithus typus from Lagos and Delta States, Nigeria. British Journal of Applied Science and

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Effect of various nitrogen doses on copper and zinc accumulation in yellow lupine biomass

REFERENCES Baran A., Jasiewicz C., 2009. The toxicity content of zinc and cadmium in soli to different plant species. Environmental Protection and Natural Resources 40: 157–164 (in Polish). Bleinholder H., Weber E., Feller C., Hess M., Wicke H., Meier U., Boom T., Lancashire P.D., Buhr L., Hack H., Klose R., Strauss R., 2001. Growth stages of mono- and dicotyledonous plants. BBCH Monograph. Uwe Meier (ed.). Braunschweig, 1–160. Curyło T., Jasiewicz C., 1998. Comparison of the effect of multi-component organic-mineral and mineral fertilizers on

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Content of Toxic and Essential Metals in Medicinal Herbs Growing in Polluted and Unpolluted Areas of Macedonia

moss and lichen exposed in bags in the city of Naples (Italy). Environ Pollut 2003;122:91-103. Tüen M. Determination of heavy metals in soil, mushroom and plant samples by atomic absorption spectrometry. Microchem J 2003;74:289-97. Basgel S, Erdemoğlu SB. Determination of mineral and trace elements in some medicinal herbs and their infusions consumed in Turkey. Sci Total Environ 2006;359-82-9. Stafilov T, Jordanovska V. Determination of cadmium in some vegetables produced in the area near

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Heavy Metal Uptake by Novel Miscanthus Seed-Based Hybrids Cultivated in Heavy Metal Contaminated Soil

References 1. Barbosa B., Boléo S., Sidella S., Costa J., Duarte M. P., Mendes B., Cosentino S., Fernando A. L.: Phytoremediation of heavy metalcontaminated soils using the perennial energy crops Miscanthus spp. and Arundo donax L., BioEnergy Research, 8(4) (2015) 1500-1511. 2. Clifton-Brown J., Lewandowski I.: Overwintering problems of newly established Miscanthus plantations can be overcome by identifying genotypes with improved rhizome cold tolerance, The New Phytologist, 148(2) (2000) 287-294. 3. Clifton

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