"[0783CCFEADD1]" . "\u0158\u00ED\u010Dn\u00ED d\u0159evo je d\u016Fle\u017Eit\u00FDm faktorem ovliv\u0148uj\u00EDc\u00EDm korytovou morfologii vodn\u00EDch tok\u016F. Zkoum\u00E1ny byly morfologick\u00E9 a sedimentologick\u00E9 \u00FA\u010Dinky individu\u00E1ln\u00ED kus\u016F d\u0159eva a d\u0159evn\u00EDch akumulac\u00ED ve dvou korytov\u00FDch segmentech \u010Cern\u00E9 Opavy. Sou\u010Dasn\u00E9 v\u011Btven\u00ED koryta bylo podm\u00EDn\u011Bno p\u0159\u00EDtomnost\u00ED mrtv\u00E9ho d\u0159eva a \u017Eiv\u00E9 vegetace b\u011Bhem extr\u00E9mn\u00ED povodn\u011B v roce 1997. V n\u00E1sledn\u00E9m obdob\u00ED ovliv\u0148ovalo d\u0159evo prostorov\u00E9 rozm\u00EDst\u011Bn\u00ED erozn\u00EDch mikroforem (t\u016Fn\u00ED) a \u010D\u00E1ste\u010Dn\u011B tak\u00E9 zv\u00FD\u0161ilo retenci jemnozrnn\u011Bj\u0161\u00EDch splavenin. D\u0159evo m\u00E1 rovn\u011B\u017E vliv na zrnitost sediment\u016F a v men\u0161\u00ED m\u00ED\u0159e rovn\u011B\u017E na jejich vyt\u0159\u00EDd\u011Bn\u00ED. Vzorky dnov\u00FDch splavenin odebran\u00E9 z fluvi\u00E1ln\u00EDch forem podm\u00EDn\u011Bn\u00FDch d\u0159evem vykazovaly jemnozrnn\u011Bj\u0161\u00ED a l\u00E9pe vyt\u0159\u00EDd\u011Bn\u00FD materi\u00E1l. Statisticky v\u00FDznamn\u00FD rozd\u00EDl mezi vzorky ovlivn\u011Bn\u00FDmi a neovlivn\u011Bn\u00FDmi d\u0159evem v\u0161ak nalezen nebyl. Nicm\u00E9n\u011B je z\u0159ejm\u00E9, \u017Ee p\u0159\u00EDtomnost d\u0159eva zvy\u0161uje zrnitostn\u00ED rozd\u00EDly v horizont\u00E1ln\u00EDm sm\u011Bru."@cs . . "Krej\u010D\u00ED, Luk\u00E1\u0161" . "woody debris; channel morphology; grain size; sediment sorting; the \u010Cern\u00E1 Opava River"@en . . "Morfologick\u00E9 a sedimentologick\u00E9 \u00FA\u010Dinky \u0159\u00ED\u010Dn\u00EDho d\u0159eva v koryt\u011B \u010Cern\u00E9 Opavy"@cs . "Geologick\u00E9 v\u00FDzkumy na Morav\u011B a ve Slezsku" . . "Morfologick\u00E9 a sedimentologick\u00E9 \u00FA\u010Dinky \u0159\u00ED\u010Dn\u00EDho d\u0159eva v koryt\u011B \u010Cern\u00E9 Opavy"@cs . . . . "\u0158\u00ED\u010Dn\u00ED d\u0159evo je d\u016Fle\u017Eit\u00FDm faktorem ovliv\u0148uj\u00EDc\u00EDm korytovou morfologii vodn\u00EDch tok\u016F. Zkoum\u00E1ny byly morfologick\u00E9 a sedimentologick\u00E9 \u00FA\u010Dinky individu\u00E1ln\u00ED kus\u016F d\u0159eva a d\u0159evn\u00EDch akumulac\u00ED ve dvou korytov\u00FDch segmentech \u010Cern\u00E9 Opavy. Sou\u010Dasn\u00E9 v\u011Btven\u00ED koryta bylo podm\u00EDn\u011Bno p\u0159\u00EDtomnost\u00ED mrtv\u00E9ho d\u0159eva a \u017Eiv\u00E9 vegetace b\u011Bhem extr\u00E9mn\u00ED povodn\u011B v roce 1997. V n\u00E1sledn\u00E9m obdob\u00ED ovliv\u0148ovalo d\u0159evo prostorov\u00E9 rozm\u00EDst\u011Bn\u00ED erozn\u00EDch mikroforem (t\u016Fn\u00ED) a \u010D\u00E1ste\u010Dn\u011B tak\u00E9 zv\u00FD\u0161ilo retenci jemnozrnn\u011Bj\u0161\u00EDch splavenin. D\u0159evo m\u00E1 rovn\u011B\u017E vliv na zrnitost sediment\u016F a v men\u0161\u00ED m\u00ED\u0159e rovn\u011B\u017E na jejich vyt\u0159\u00EDd\u011Bn\u00ED. Vzorky dnov\u00FDch splavenin odebran\u00E9 z fluvi\u00E1ln\u00EDch forem podm\u00EDn\u011Bn\u00FDch d\u0159evem vykazovaly jemnozrnn\u011Bj\u0161\u00ED a l\u00E9pe vyt\u0159\u00EDd\u011Bn\u00FD materi\u00E1l. Statisticky v\u00FDznamn\u00FD rozd\u00EDl mezi vzorky ovlivn\u011Bn\u00FDmi a neovlivn\u011Bn\u00FDmi d\u0159evem v\u0161ak nalezen nebyl. Nicm\u00E9n\u011B je z\u0159ejm\u00E9, \u017Ee p\u0159\u00EDtomnost d\u0159eva zvy\u0161uje zrnitostn\u00ED rozd\u00EDly v horizont\u00E1ln\u00EDm sm\u011Bru." . . . "Morfologick\u00E9 a sedimentologick\u00E9 \u00FA\u010Dinky \u0159\u00ED\u010Dn\u00EDho d\u0159eva v koryt\u011B \u010Cern\u00E9 Opavy" . "1212-6209" . . "7"^^ . "CZ - \u010Cesk\u00E1 republika" . . . . . "Morphological and Sedimentological Effects of Woody Debris in the Channel of the \u010Cern\u00E1 Opava"@en . "RIV/00216224:14310/10:00046980" . "1-2" . "Morphological and Sedimentological Effects of Woody Debris in the Channel of the \u010Cern\u00E1 Opava"@en . "P(GA205/08/0926), V" . "2"^^ . "M\u00E1\u010Dka, Zden\u011Bk" . . "Woody debris in streams and rivers is an important controlling variable of channel morphology. We investigated morphological and sedimentological effects of individual wood pieces and wood accumulations in two segments of the \u010Cern\u00E1 Opava River. We conclude that live and dead woody vegetation conditioned the origin of river branching after the extreme flood in 1997. Afterwards, woody debris governed the spatial distribution of small erosional bed forms (pools) and also partly enhanced the retention of finer sediments. Woody debris has also local impact on sediment grain size and to a lesser extent on sediment sorting. Bed load samples from fluvial forms which were generated by woody debris show finer and better sorted sediments. However, the difference to samples unaffected by woody debris is statistically insignificant. Nevertheless, it is evident that the presence of woody debris steepness the horizontal gradients in sediment grain size."@en . "2"^^ . "Morfologick\u00E9 a sedimentologick\u00E9 \u00FA\u010Dinky \u0159\u00ED\u010Dn\u00EDho d\u0159eva v koryt\u011B \u010Cern\u00E9 Opavy" . . "RIV/00216224:14310/10:00046980!RIV11-GA0-14310___" . . "17" . . "14310" . . . "272625" .