. . . . . . . . . . "Neuvedeno."@en . . . . "V posledn\u00EDch letech byla v krasov\u00FDch oblastech pozorov\u00E1na cel\u00E1 \u0159ada negativn\u00EDch proces\u016F. V centru pozornosti speleolog\u016F a ekolog\u016F je zejm\u00E9na samovoln\u00E1 destrukce tzv. jemn\u00FDch sintrov\u00FDch forem (odpad\u00E1v\u00E1n\u00ED drobn\u00FDch br\u010Dek, koroze tenk\u00FDch z\u00E1clonov\u00FDch \u00FAtvar\u016F).Na p\u0159\u00ED\u010Diny tohoto jevu existuje cel\u00E1 \u0159ada hypot\u00E9z, dohad\u016F a spekulac\u00ED. P\u0159es zna\u010Dn\u00E9 badatelsk\u00E9 \u00FAsil\u00ED a mno\u017Estv\u00ED p\u0159edb\u011B\u017En\u00FDch studi\u00ED z\u016Fst\u00E1v\u00E1 probl\u00E9m st\u00E1le nevy\u0159e\u0161en. K jeho objasn\u011Bn\u00ED je nezbytn\u00E9 prohlouben\u00E9, dlouhodob\u00E9 a systematick\u00E9 studium. Aktu\u00E1ln\u00ED jezejm\u00E9na ot\u00E1zka, zda je tento jev spojen s antropogenn\u00ED \u010Dinnost\u00ED nebo zda je p\u0159irozen\u00FD. C\u00EDlem navrhovan\u00E9ho projektu je (1) potvrzen\u00ED pop\u0159. vyvr\u00E1cen\u00ED hypot\u00E9z o prob\u00EDhaj\u00EDc\u00ED korozi br\u010Dek, (2) prok\u00E1z\u00E1n\u00ED pop\u0159. vyvr\u00E1cen\u00ED mo\u017Enosti uplat\u0148ov\u00E1n\u00ED tohoto procesu vminulosti, (3) potvrzen\u00ED pop\u0159. vylou\u010Den\u00ED antropogenn\u00EDch vliv\u016F a n\u00E1vrh jejich minimalizace, (4) n\u00E1vrh alternativn\u00EDch vysv\u011Btlen\u00ED v p\u0159\u00EDpad\u011B nepotvrzen\u00ED antropogenn\u00EDho vlivu. Projekt je koncipov\u00E1n jako (a) z\u00E1kladn\u00ED v\u00FDzkum se zam\u011B\u0159en\u00EDm na prohlouben\u00E9" . "29"^^ . "Recent karst processes: speleothem destruction"@en . "1"^^ . "29"^^ . "1"^^ . "Studie potvrdila prob\u00EDhaj\u00EDc\u00ED korozi speleot\u00E9m. Zpochybn\u011Bna byla koroze skapov\u00FDmi vodami - v\u011Bt\u0161ina vod je trvale p\u0159esycen\u00E1 ke kalcitu. Jedin\u00E1 zdokumentovan\u00E1 nenasycen\u00E1 voda je z\u0159ejm\u011B v\u00FDsledkem mixov\u00E1n\u00EDm odli\u0161n\u00FDch typ\u016F vod: demonstruje nebezpe\u010D\u00ED plynouc\u00ED z"@cs . "Some negative processes appeared in karst areas during last decades. Particularly, a spontaneous destruction of fine speleothems (breaking and falling of straw stalactites and as if the corrosion of %22cave curtains%22) worries speleogists and ecologists.There exist amounts of hypothesis, assumptions, and speculations trying to explain these processes. Despite significant research activities and many preliminary studies, the problem is definitely not solved. The topic question remains whether thedestruction phenomena are connected with anthropogenic activities or whether are natural. To understand all aspects of these processes, there is needed an extended, long-range and systematic study. The goal of the submitted project is (1) conforming ordisproving of the hypothesis about running of straw stalactite corrosion (2) verifying whether this process also operated in the past (3) finding a potential anthropogenic impact and proposing its minimization (4) suggesting of alternative explanation if"@en . . "0"^^ . . "http://www.isvav.cz/projectDetail.do?rowId=GA205/03/1128"^^ . . . "Recentn\u00ED krasov\u00E9 procesy: destrukce speleot\u00E9m" . "This study confirmed running corrosion of speleothems. The corrosion by dripwaters was questioned - the majority of dripwaters was permanently supersaturated with respect to calcite. A single unsaturated dripwater found in Punkevn\u00ED Caves is probably a re"@en . . . . "2009-01-15+01:00"^^ . . "GA205/03/1128" .