TY - JOUR AU - Čuljak, A. AU - Antunović, S. AU - Benković-Lačić, T. AU - Mirosavljević, K. AU - Japundžić-Palenkić, B. AU - Benković, R. TI - Impact of Hydropower Plant Construction on Drava River JF - Nova Mehanizacija Sumarstva J2 - Nova Mehanizacija Sumarstva VL - 43 PY - 2022 IS - 1 SP - 51 EP - 65 PG - 15 SN - 1845-8815 DO - 10.5552/nms.2022.6 UR - https://m2.mtmt.hu/api/publication/34183571 ID - 34183571 N1 - Cited By :1 Export Date: 9 October 2023 Correspondence Address: Čuljak, A.; Sveučilište u Slavonskom Brodu, dr. Mile Budaka 1, Croatia; email: aculjak@unisb.hr AB - Rivers are an integral part of the soil, formed during the turbulent times of the formation of the planet Earth and have changed throughout its history. The diversity of rivers is not only reflected in the different types of soil through which they flow, but this diversity also depends on the changes in seasons and the differences between wet and dry years. The Drava River is a Central European river and one of the most important tributaries of the Danube. Under natural conditions, the transport of sediment in the Drava River is balanced, which means that in a certain area the amount of sediment carried away is replaced by the same amount from the upstream parts of the basin. Flowing through Croatia, the Drava River was dammed three times upstream of the mouth of the Mura River, while before entering Croatia it was dammed as many as 20 times. The construction of hydroaccumulation lakes, as part of hydropower facilities, changes the natural flow regime, causing significant hydrological and morphological changes at dam sites, as well as upstream and downstream of dams. The construction of dams on rivers reduces the number of plant and animal species by changing local habitat conditions. The construction of hydroelectric power plants leads to the canalization of certain parts of the watercourse, thus changing the erosion-sedimentation processes in the riverbed. A river in its natural state with all its elements is the best defense against seasonal floods. The construction of hydropower facilities changes the hydrological regime, that is, large fluctu-ations occur in the flow values in certain parts of the Drava River, which has an impact on the floodplains downstream and on the plant species characteristic of that type of habitat. Most of the plant species that are adapted to flood habitat conditions would lose most of the soil that is suitable for settlement with the construction of the reservoir. © 2022, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering. All rights reserved. LA - Croatian DB - MTMT ER - TY - JOUR AU - Karavidović, Tena AU - Brenko, Tomislav TI - Karakter ležišta i svojstvamočvarne željezne rude na položaju Kalinovac – Hrastova greda JF - PRILOZI INSTITUTA ZA ARHEOLOGIJU U ZAGREBU J2 - PRILOZI INSTITUTA ZA ARHEOLOGIJU U ZAGREBU VL - 39 PY - 2022 IS - 2 SP - 219 EP - 261 PG - 43 SN - 1330-0644 DO - 10.33254/piaz.39.2.5 UR - https://m2.mtmt.hu/api/publication/33555199 ID - 33555199 AB - Temeljna sirovina za proizvodnju željeza tijekom kasne antike i ranoga srednjeg vijeka na prostoru Podravine bila je močvarna željezna ruda. Analiza rudnih ležišta i svojstava ruda može doprinjeti razumijevanju prirodnih mehanizama koji uvjetuju način eksploatacije i uporabu ruda u prošlosti. Međutim, ubikacija ležišta je izazovna zbog mogućnosti degradacije, potpunoga iskorištavanja te inhibicije obnove ili razvoja ležišta, prvenstveno uzrokovanih ljudskom aktivnošću i utjecajem na okoliš. U suvremenome krajoliku Podravine najviši potencijal za razvoj ležišta i jedino, djelomično razoreno ležište, ustanovljeno je na položaju Kalinovac – Hrastova greda 1 – 3. Na osnovi njegove analize izveden je model mehanizma formiranja, fizionomije i položaja ležišta u Podravini te je povedena rasprava o metodama eksploatacije kao i potencijanim prostorima pojave ležišta u odnosu na položaje arheoloških lokaliteta s tragovima proizvodnje željeza. U svrhu analize tehnološke iskoristivosti ruda sličnih svojstava iz arheološkoga konteksta, provedeno je eksperimentalno taljenje kalinovačke rude. Na osnovi rezultata objašnjavaju se čimbenici koji su mogli onemogućiti proizvodnju spužvastoga željeza. Potonje istraživanje ukazuje i na tehnološku prilagodbu u prošlosti, preradu ruda uvjetovanu prirodnim preduvjetima, prvenstveno promjenjivim svojstvima močvarnih željeznih ruda i karakterom ležišta. Pri analizi se koriste podaci dobiveni površinskim terenskim pregledom, geoarheološkim sondiranjem, geoprostornim analizama, eksperimentalnim testiranjem i mineraloškim (XRD) te kemijskim analizama (ICP – AES) uzoraka razvojnih faza rude i zgure dobivene kroz postupak eksperimentalnoga taljenja. LA - Serbian DB - MTMT ER - TY - THES AU - Karavidović, Tena TI - Proizvodnja željeza u kasnoj antici i ranome srednjem vijeku u Podravini – tehnološki aspekti i društveni kontekst PY - 2022 UR - https://m2.mtmt.hu/api/publication/33600291 ID - 33600291 LA - Croatian DB - MTMT ER - TY - JOUR AU - Katarina, PAVLEK AU - Toni, KULEJ AU - Neven, BOČIĆ TI - PROMJENE U DULJINI I OBLIKU KORITA DRAVE OD REPAŠA DO FERDINANDOVCA OD KRAJA 18. STOLJEĆA DO DANAS JF - PODRAVINA: CASOPIS ZA MULTIDISCIPLINARNA ISTRAZIVANJA J2 - PODRAVINA VL - 21 PY - 2022 IS - 42 SP - 27 EP - 41 PG - 15 SN - 1333-5286 UR - https://m2.mtmt.hu/api/publication/33538883 ID - 33538883 LA - Croatian DB - MTMT ER - TY - JOUR AU - Hrvoje, Petric AU - Nikola, Cik TI - CONTRIBUTIONS TO THE KNOWLEDGE OF THE RIVER DRAVA FLOOD IN 1827 JF - EKONOMSKA- I EKOHISTORIJA VL - 17 PY - 2021 IS - 17 SP - 15 EP - 33 PG - 19 SN - 1849-0190 UR - https://m2.mtmt.hu/api/publication/32784572 ID - 32784572 LA - English DB - MTMT ER - TY - JOUR AU - Pirkhoffer, Ervin AU - Halmai, Ákos AU - Ficsor, Johanna AU - Gradwohl-Valkay, Alexandra Ilona AU - Lóczy, Dénes AU - Nagy, Ádám AU - Liptay, Zoltán Árpád AU - Czigány, Szabolcs TI - Bedload entrainment dynamics in a partially channelized river with mixed bedload: A case study of the Drava River, Hungary JF - RIVER RESEARCH AND APPLICATIONS J2 - RIVER RES APPL VL - 2021 PY - 2021 IS - 37 SP - 699 EP - 711 PG - 13 SN - 1535-1459 DO - 10.1002/rra.3794 UR - https://m2.mtmt.hu/api/publication/31940975 ID - 31940975 N1 - Funding Agency and Grant Number: Higher Education Institutional Excellence Program of Ministry of Human Capacities (Hungary) [20765-3/2018/FEKUTSTRAT]; University of Pecs; Hungarian Scientific Research Fund [GINOP2.3.2-15-2016-00055] Funding text: Higher Education Institutional Excellence Program of Ministry of Human Capacities (Hungary), Grant/Award Number: 20765-3/2018/FEKUTSTRAT; University of Pecs and the Hungarian Scientific Research Fund, Grant/Award Number: GINOP2.3.2-15-2016-00055 AB - The morphodynamics of alluvial rivers is controlled by the mobilization of bed material. However, the details of mobilization of mixed-texture bed materials at low flows, increasingly common due to climate change, are still unclear. The 161-km-long Hungarian alluvial reach of the Drava River, downstream of sections where flow characteristics have been heavily modified by human interference, was investigated in 2019. A monitoring campaign at cross-sections, on average 5.55 km apart, was launched to study channel morphology, bedload entrainment dynamics with regard to texture. For the survey, a sonar, an ADCP and a Helley–Smith bedload sampler mounted on a double-hull vessel was used. Our research pointed out an abrupt fining between river kms (hereafter: rkm) 175 and 170 (distance from the mouth), probably due to reduced armouring. The d60 fraction was found to be finer than in 2003 and 2012 for the upstream stations of Botovo and Bélavár, and showed a good correspondence with the records of the Barcs and Drávaszabolcs stations. Temporal fining and higher entrainment rate are due to (a) changing climate of the catchment, that is, diminishing flow between the monitoring dates (2003, 2012 and 2019); (b) reduced armouring, (c) variability of cross-sectional position of sampling points and (d) the different mesh size of the bedload samplers employed. Calculations of shear velocity, Reynolds and Shields numbers indicate more dynamic sediment motion than observed by previous studies. Our reach-scale results may be relevant for the alluvial sections of other alpine and subalpine, partially channelized rivers of similar size, flow dynamics and mixed bedload. LA - English DB - MTMT ER - TY - JOUR AU - Soós, Bence TI - Follow the Rivers?. Group identity, interactions and the role of rivers in late Hallstatt southern Pannonia TS - Group identity, interactions and the role of rivers in late Hallstatt southern Pannonia JF - ARCHAEOLOGIAI ÉRTESÍTŐ (BUDAPEST) J2 - ARCHAEOL ERT (BP) VL - 146 PY - 2021 IS - 1 SP - 43 EP - 64 PG - 22 SN - 0003-8032 DO - 10.1556/0208.2021.00017 UR - https://m2.mtmt.hu/api/publication/32557309 ID - 32557309 LA - English DB - MTMT ER - TY - JOUR AU - Soós, Bence TI - The Late Hallstatt Age Burials of Southern Transdanubia and a Missing Link JF - ACTA ARCHAEOLOGICA ACADEMIAE SCIENTIARUM HUNGARICAE J2 - ACTA ARCHAEOL ACAD SCI HUNG VL - 71 PY - 2020 IS - 2 SP - 409 EP - 441 PG - 34 SN - 0001-5210 DO - 10.1556/072.2020.00011 UR - https://m2.mtmt.hu/api/publication/31793973 ID - 31793973 AB - For almost four decades our knowledge about the Late Hallstatt Age in southern Transdanubia has been fundamentally shaped by two significant sites: the burial ground near Beremend and Szentlőrinc. New discoveries in today’s Tolna County, however, lead us to revise some of conclusions drawn based on these sites as well as to realise the complex ways how the burial grounds and the communities using them were integrated into different cultural and social relationships of various scales. One of the main questions is how to interpret the differences and similarities between the two sites. In my view, the recently discovered sites near Alsónyék, Paks and Tolna-Mözs provide new insight how to evaluate the above question and what the mortuary practices of the Middle Iron Age population of southern Transdanubia can tell us about the cultural relations of the region’s communities. LA - English DB - MTMT ER - TY - JOUR AU - Marko, Blagus AU - Lidija, Tadić TI - Obnova vodotoka – mjera zaštite i poboljšanja riječnog ekosustava JF - HRVATSKE VODE J2 - HRVATSKE VODE VL - 26 PY - 2018 IS - 106 SP - 239 EP - 248 PG - 10 SN - 1330-1144 UR - https://m2.mtmt.hu/api/publication/30461715 ID - 30461715 LA - Croatian DB - MTMT ER -