To je slu\u010daj s vodama u NP \u201eKrka\u201d, a posebno je va\u017eno kad su u pitanju procesi stvaranja sedre na sedrenim barijerama rijeke Krke.<\/p>\n
S ciljem osiguranja primjerenih podloga za odre\u0111ivanje EPP na prostoru NP \u201eKrka\u201c, gdje su prisutni izra\u017eeni antropogeni pritisci vezani za kori\u0161tenje voda, posebno za energetske potrebe, tijekom 2023. i 2024. godine tvrtka GEO-5 d. o. o. iz Rovinja provela je, u suradnji s Gra\u0111evinskim fakultetom u Rijeci i tvrtkom Dvokut-ECRO d. o. o., istra\u017eivanje hidrolo\u0161kih elemenata EPP-a: vodnog re\u017eima Krke, malovodnih razdoblja i utjecaja postoje\u0107eg re\u017eima kori\u0161tenja voda na vodnu bilancu. U sklopu istra\u017eivanja dan je doprinos razvoju nove metodologije odre\u0111ivanja hidrolo\u0161kih elemenata EPP-a na taj na\u010din da je kori\u0161tena metoda omo\u010denog oboda unaprije\u0111ena plo\u0161nim sagledavanjima omo\u010dene povr\u0161ine barijere na kojoj su prisutni procesi osedravanja.<\/p>\n
U tri su navrata napravljene snimke barijere Manojlova\u010dkog buka, kori\u0161tenjem bespilotne letjelice, 3D skenera, digitalnog fotoaparata i RTK GPS ure\u0111aja. Na osnovi fotografija snimljenih digitalnim fotoaparatom i kamerom bespilotne letjelice, izra\u0111en je trodimenzionalni oblak to\u010daka, generiran Structure-from-Motion (SfM) fotogrametrijom, obra\u0111en i georeferenciran.<\/p>\n
U predmetnom dokumentu prikupljeni su i analizirani podaci o podzemnom ekosustavu \u0161pilje Miljacka II, te je ispitan potencijal protista kao indikatora stanja hidrolo\u0161kih prilika u podzemlju. Istra\u017eivanje je pokazalo da su oku\u0107ene amebe, kao najraznolikija i brojno\u0161\u0107u najve\u0107a skupina podzemnih protista, najpogodnije za statisti\u010dku obradu sa svrhom odre\u0111ivanja ekolo\u0161kih karakteristika u \u0161pilji.<\/p>\n
Provedeno istra\u017eivanje i snimanje nadzemnih i podzemnih dijelova toka potvrdilo je sve ve\u0107i utjecaj klimatskih varijacija i promjena na ekosustav rijeke Krke, a analize malovodnih razdoblja pokazuju negativne promjene, \u010dije se intenziviranje o\u010dekuje u budu\u0107nosti.<\/p>\n
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[en] This is the case with the waters in the Krka National Park, and it is especially important in terms of the processes of tufa formation on the tufa barriers of the Krka River.<\/p>\n With the aim of ensuring an adequate basis for determining the EF in the area of the \u200b\u200bKrka National Park, where there are pronounced anthropogenic pressures related to the use of water, especially for energy needs, during 2023 and 2024 the company GEO-5 d.o.o. from Rovinj, in cooperation with the Faculty of Civil Engineering in Rijeka and the company Dvokut-ECRO d.o.o., conducted research into the hydrological elements of the EF: the water regime of the Krka River, low water periods, and the influence of the existing water use regime on the water balance. As part of the research, a contribution was made to the development of a new methodology for determining the hydrological elements of the EF in such a way that the wetted rim method commonly used was improved by planar observations of the wetted surface of the barrier where processes of tufa coalescence are present.<\/p>\n On three occasions, recordings of the Manojlovac waterfall barrier were taken, using an unmanned aerial vehicle (drone), a 3D scanner, a digital camera, and an RTK GPS device. Based on photos taken with the digital camera and the drone camera, a three-dimensional cloud of points was created, generated by Structure-from-Motion (SfM) photogrammetry, processed, and geo-referenced.<\/p>\n In the referential document, data on the underground ecosystem of the Miljacka II cave was collected and analysed, and the potential use of protists as indicators of the state of hydrological conditions underground was investigated. Research has shown that encased amoebas, as the most diverse and largest group of subterranean protists, are the most suitable for statistical processing, with the purpose of determining the ecological characteristics existing in the cave.<\/p>\n The conducted investigation and documentation of above-ground and underground parts of the water course confirmed the ever increasing influence of climatic variations and changes on the ecosystem of the Krka River, while analyses of low-water periods show negative changes, which are expected to intensify in the future.<\/p>\n <\/p> Definiranje i osiguranje ekolo\u0161ki prihvatljivog protoka (EPP) u vodotocima za\u0161ti\u0107enih podru\u010dja od krucijalne je va\u017enosti za odr\u017eavanje ekosustava ovisnih o vodama tijekom dugotrajnih su\u0161nih razdoblja<\/p>\n","protected":false},"author":2,"featured_media":10383,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[],"class_list":["post-10382","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research"],"_links":{"self":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts\/10382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/comments?post=10382"}],"version-history":[{"count":4,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts\/10382\/revisions"}],"predecessor-version":[{"id":14083,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/posts\/10382\/revisions\/14083"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/media\/10383"}],"wp:attachment":[{"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/media?parent=10382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/categories?post=10382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/npkrka.hr\/hr\/wp-json\/wp\/v2\/tags?post=10382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\u201cThe analysis of dry water periods in the Krka River basin and hydrological elements of an ecologically acceptable flow and the impact of extreme droughts on water-dependent ecosystems\u201d<\/strong>
\nDefining and ensuring environmentally acceptable flows (EF) in watercourses of protected areas is of crucial importance for the maintenance of water-dependent ecosystems during prolonged dry periods<\/strong><\/p>\n<\/div>
\n[\/en]<\/p>\n","protected":false},"excerpt":{"rendered":"