{"id":380274,"date":"2026-07-14T21:24:31","date_gmt":"2026-07-14T20:24:31","guid":{"rendered":"https:\/\/zakrasnejsivimperk.cz\/?p=380274"},"modified":"2026-07-14T21:35:49","modified_gmt":"2026-07-14T20:35:49","slug":"ceska-republika-sumava-nebo-polabi-vedci-odhalili-kde-se-zimni-srazky-v-pude-zdrzi-dele","status":"publish","type":"post","link":"https:\/\/zakrasnejsivimperk.cz\/?p=380274","title":{"rendered":"\u010cESK\u00c1 REPUBLIKA: \u0160umava nebo Polab\u00ed? V\u011bdci odhalili, kde se zimn\u00ed sr\u00e1\u017ekov\u00e1 voda zdr\u017e\u00ed v p\u016fd\u011b del\u0161\u00ed po dobu"},"content":{"rendered":"

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Zimn\u00ed sr\u00e1\u017eky maj\u00ed z\u00e1sadn\u00ed v\u00fdznam pro z\u00e1soby vody v krajin\u011b. Nov\u00e1 studie v\u011bdc\u016f z Hydrologick\u00e9ho \u00fastavu Akademie v\u011bd \u010cR v\u0161ak uv\u00e1d\u00ed, \u017ee jejich role se v\u00fdrazn\u011b li\u0161\u00ed podle nadmo\u0159sk\u00e9 v\u00fd\u0161ky. Zat\u00edmco v n\u00ed\u017ein\u00e1ch m\u016f\u017ee voda ze zimn\u00edch sr\u00e1\u017eek zm\u00edr\u0148ovat p\u016fdn\u00ed sucho je\u0161t\u011b n\u011bkolik m\u011bs\u00edc\u016f po zim\u011b, v horsk\u00fdch oblastech p\u016fdu opou\u0161t\u00ed p\u0159ekvapiv\u011b rychle a z\u00e1sobuje p\u0159edev\u0161\u00edm podzemn\u00ed vody a prameny. V\u00fdsledky publikoval mezin\u00e1rodn\u00ed v\u011bdeck\u00fd \u010dasopis Hydrology and Earth System Sciences.<\/h6>\n

V\u011bdci sledovali pohyb vody v p\u016fd\u011b na \u010dty\u0159ech lokalit\u00e1ch od Polabsk\u00e9 n\u00ed\u017einy a\u017e po vrcholov\u00e9 partie \u0160umavy. Pomoc\u00ed unik\u00e1tn\u00ed kombinace odb\u011br\u016f p\u016fdn\u00ed vody a anal\u00fdz stabiln\u00edch izotop\u016f vod\u00edku a kysl\u00edku dok\u00e1zali p\u0159\u00edmo porovnat dv\u011b slo\u017eky p\u016fdn\u00ed vody \u2013 vodu voln\u011b se pohybuj\u00edc\u00ed v p\u016fdn\u00edch p\u00f3rech a vodu pevn\u011bji v\u00e1zanou v jemn\u00fdch kapil\u00e1r\u00e1ch p\u016fdy.<\/p>\n

My\u0161lenka koexistence t\u011bchto dvou slo\u017eek p\u016fdn\u00ed vody, je\u017e maj\u00ed odli\u0161n\u00fd p\u016fvod, a tud\u00ed\u017e i dobu zdr\u017een\u00ed v p\u016fd\u011b a izotopov\u00e9 slo\u017een\u00ed, byla p\u0159edstavena ji\u017e p\u0159ed v\u00edce ne\u017e des\u00edtkou let a vzbudila rozs\u00e1hlou debatu. Dosavadn\u00edmi metodick\u00fdmi p\u0159\u00edstupy v\u0161ak ostatn\u00ed v\u011bdeck\u00e9 t\u00fdmy z\u00edskaly v\u017edy pouze vodu volnouu(tzv. mobiln\u00ed) a vodu celkovou (sm\u011bs mobiln\u00ed a pevn\u011b v\u00e1zan\u00e9 vody).<\/p>\n

\u201eD\u00edky nov\u00e9 metodice jsme mohli detailn\u011bji sledovat, jak dlouho voda ze sr\u00e1\u017eek v p\u016fd\u011b z\u016fst\u00e1v\u00e1 a zda poch\u00e1z\u00ed p\u0159ev\u00e1\u017en\u011b ze zimn\u00edho, nebo letn\u00edho obdob\u00ed,\u201c<\/em> vysv\u011btluje hlavn\u00ed autor studie Ji\u0159\u00ed Kocum z Hydrologick\u00e9ho \u00fastavu Akademie v\u011bd.<\/p>\n

Poprv\u00e9 tak bylo mo\u017en\u00e9 mezi sebou p\u0159\u00edmo porovnat izotopov\u00e9 slo\u017een\u00ed obou slo\u017eek p\u016fdn\u00ed vody a sr\u00e1\u017eek. Auto\u0159i popisuj\u00ed, za jak\u00fdch okolnost\u00ed m\u016f\u017ee k t\u00e9to koexistenci doj\u00edt a kdy se naopak p\u016fdn\u00ed profil izotopov\u011b sjednot\u00ed a slo\u017een\u00ed mobiln\u00ed a pevn\u011b v\u00e1zan\u00e9 vody se stane toto\u017en\u00fdm.<\/p>\n

V\u00fdsledky studie prok\u00e1zaly v\u00fdrazn\u00e9 rozd\u00edly mezi n\u00ed\u017einami a horsk\u00fdmi oblastmi. V zem\u011bd\u011blsk\u00e9 krajin\u011b Polab\u00ed se d\u00edky pomal\u00e9 infiltraci, men\u0161\u00edm \u00fahrn\u016fm sr\u00e1\u017eek a ni\u017e\u0161\u00ed transpiraci (vypa\u0159ov\u00e1n\u00ed vodn\u00ed p\u00e1ry) vegeta\u010dn\u00edho pokryvu v kapil\u00e1rn\u00edch p\u00f3rech voda poch\u00e1zej\u00edc\u00ed ze zimn\u00edch sr\u00e1\u017eek v p\u016fd\u011b udr\u017eela je\u0161t\u011b v \u010dervenci, a to i p\u0159es kompletn\u00ed absenci sn\u011bhov\u00e9 pokr\u00fdvky v zimn\u00edm obdob\u00ed. Rostliny tak mohly vyu\u017e\u00edvat z\u00e1soby poch\u00e1zej\u00edc\u00ed ze zimn\u00edch sr\u00e1\u017eek i v pr\u016fb\u011bhu jarn\u00ed vegeta\u010dn\u00ed sezony.<\/p>\n

Naopak v horsk\u00e9m prost\u0159ed\u00ed \u0160umavy zimn\u00ed voda z p\u016fdn\u00edho profilu \u201emizela\u201c ji\u017e kr\u00e1tce po odt\u00e1n\u00ed sn\u011bhov\u00e9 pokr\u00fdvky. P\u0159esto\u017ee zde b\u011bhem zimy le\u017e\u00ed mocn\u00e1 vrstva sn\u011bhu, vodu z n\u011bj z d\u016fvodu vysok\u00fdch \u00fahrn\u016f sr\u00e1\u017eek a vysok\u00e9 transpirace lesn\u00edho porostu rychle nahrazuj\u00ed nov\u011b p\u0159\u00edchoz\u00ed sr\u00e1\u017eky.<\/p>\n

Zji\u0161t\u011bn\u00ed pom\u00e1h\u00e1 vysv\u011btlit, jak\u00fd maj\u00ed zimn\u00ed sr\u00e1\u017eky v r\u016fzn\u00fdch \u010d\u00e1stech krajiny v\u00fdznam. V n\u00ed\u017ein\u00e1ch jsou d\u016fle\u017eitou ochranou proti jarn\u00edmu a \u010dasn\u011b letn\u00edmu p\u016fdn\u00edmu suchu. Pokud je zde zimn\u00ed obdob\u00ed na sr\u00e1\u017eky chud\u00e9, m\u016f\u017ee se p\u016fdn\u00ed sucho projevit ji\u017e na za\u010d\u00e1tku vegeta\u010dn\u00ed sezony. V horsk\u00fdch oblastech je v\u00fdznam zimn\u00edch sr\u00e1\u017eek odli\u0161n\u00fd. Ve zdej\u0161\u00edm prost\u0159ed\u00ed zimn\u00ed sr\u00e1\u017eky p\u016fdou proch\u00e1zej\u00ed rychleji a v\u00fdznamn\u011b p\u0159isp\u00edvaj\u00ed p\u0159edev\u0161\u00edm k dopl\u0148ov\u00e1n\u00ed podzemn\u00edch vod, a t\u00edm k udr\u017eov\u00e1n\u00ed vydatnosti lok\u00e1ln\u00edch pramen\u016f. Lesn\u00ed spole\u010denstva jsou tak ve vegeta\u010dn\u00ed sezon\u011b z\u00e1visl\u00e1 p\u0159edev\u0161\u00edm na jarn\u00edch a letn\u00edch sr\u00e1\u017ek\u00e1ch.<\/p>\n

\u201eUkazuje se, \u017ee ani bohat\u00e1 sn\u011bhov\u00e1 pokr\u00fdvka nemus\u00ed znamenat dostatek vody pro horsk\u00e9 p\u016fdy b\u011bhem jarn\u00edch, pota\u017emo letn\u00edch m\u011bs\u00edc\u016f. Voda ze sn\u011bhu se zde zdr\u017euje mnohem krat\u0161\u00ed dobu, ne\u017e jsme sami p\u0159edpokl\u00e1dali,\u201c<\/em> dopl\u0148uje autor studie Ji\u0159\u00ed Kocum.<\/p>\n

V\u00fdsledky studie pomohou zp\u0159esnit ekohydrologick\u00e9 modely a zlep\u0161it p\u0159edpov\u011bdi p\u016fdn\u00edho sucha. Do budoucna tak mohou p\u0159isp\u011bt k lep\u0161\u00edmu odhadu dopad\u016f klimatick\u00e9 zm\u011bny na \u010desk\u00e9 ekosyst\u00e9my.<\/p>\n

Ocen\u011bn\u00ed:<\/h6>\n

V\u00fdzkum, jeho\u017e sou\u010d\u00e1st\u00ed je tato studie, z\u00edskal v roce 2026 1. m\u00edsto v sout\u011b\u017ei Make Our Planet Great Again (MOPGA) za environment\u00e1ln\u00ed a klimatick\u00fd v\u00fdzkum. Sout\u011b\u017e po\u0159\u00e1d\u00e1 Velvyslanectv\u00ed Francie v \u010cesk\u00e9 republice spole\u010dn\u011b s nositelem Nobelovy ceny prof. Jean-Marie Lehnem a BNP Paribas a oce\u0148uje v\u00fdznamn\u00e9 p\u0159\u00ednosy v oblasti klimatu a \u017eivotn\u00edho prost\u0159ed\u00ed.<\/p>\n

Publikace: https:\/\/hess.copernicus.org\/articles\/30\/3313\/2026\/hess-30-3313-2026-metrics.html<\/strong><\/a><\/p>\n

Text a foto: (zu-av\u010dr)<\/strong><\/p>\n

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  Zimn\u00ed <\/p>\n","protected":false},"author":2,"featured_media":380275,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[128,174],"tags":[],"jetpack_featured_media_url":"https:\/\/zakrasnejsivimperk.cz\/wp-content\/uploads\/2026\/07\/14\/sumava-nebo-polabi.jpg","_links":{"self":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/380274"}],"collection":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=380274"}],"version-history":[{"count":8,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/380274\/revisions"}],"predecessor-version":[{"id":380283,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/380274\/revisions\/380283"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/media\/380275"}],"wp:attachment":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=380274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=380274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=380274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}