{"id":19473,"date":"2026-03-10T05:25:09","date_gmt":"2026-03-10T05:25:09","guid":{"rendered":"https:\/\/www.europesays.com\/cz\/19473\/"},"modified":"2026-03-10T05:25:09","modified_gmt":"2026-03-10T05:25:09","slug":"letosni-casny-nastup-jara-se-podoba-rekordnimu-pred-dvema-lety","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/cz\/19473\/","title":{"rendered":"Leto\u0161n\u00ed \u010dasn\u00fd n\u00e1stup jara se podob\u00e1 rekordn\u00edmu p\u0159ed dv\u011bma lety"},"content":{"rendered":"

V\u011bdci tzv. fenologick\u00e9 f\u00e1ze rostlin sleduj\u00ed na ji\u017en\u00ed Morav\u011b nep\u0159etr\u017eit\u011b od roku 1951.\u00a0Podoba startu jara se v\u0161ak li\u0161\u00ed. R\u016fst teploty za\u010d\u00edn\u00e1 m\u011bnit nejen na\u010dasov\u00e1n\u00ed jednotliv\u00fdch v\u00fdvojov\u00fdch f\u00e1z\u00ed sledovan\u00fdch druh\u016f, ale i\u00a0vazby a\u00a0interakce mezi jednotliv\u00fdmi druhy. <\/p>\n

\u201ePokud jsme byli doposud zvykl\u00ed, \u017ee nejd\u0159\u00edve monitorujeme kveten\u00ed jarn\u00edch bylin, tedy k\u0159ivatc\u016f \u017elut\u00fdch a\u00a0plicn\u00edk\u016f l\u00e9ka\u0159sk\u00fdch, a\u00a0a\u017e po nich nastupuje ra\u0161en\u00ed habr\u016f, tak posledn\u00ed roky ukazuj\u00ed, \u017ee jsou to pr\u00e1v\u011b ra\u0161\u00edc\u00ed habry, jejich\u017e v\u00fdvojov\u00e9 f\u00e1ze nast\u00e1vaj\u00ed nejd\u0159\u00edve. A\u017e po nich za\u010d\u00ednaj\u00ed ra\u0161it a\u00a0n\u00e1sledn\u011b kv\u00e9st jarn\u00ed byliny, kter\u00e9 jsou pravd\u011bpodobn\u011b v\u00edce ovlivn\u011bny p\u0159\u00edzemn\u00ed minim\u00e1ln\u00ed teplotou a\u00a0tak\u00e9 teplotou p\u016fdy,\u201c uvedla v\u00a0tiskov\u00e9 zpr\u00e1v\u011b Lenka Barto\u0161ov\u00e1 z\u00a0\u00dastavu v\u00fdzkumu glob\u00e1ln\u00ed zm\u011bny AV \u010cR – CzechGlobe a\u00a0Mendelovy univerzity v\u00a0Brn\u011b.<\/p>\n

Leto\u0161n\u00ed rok potvrdil trend nastolen\u00fd v\u00a0p\u0159edch\u00e1zej\u00edc\u00edch t\u0159ech letech. Jde o\u00a0\u010dtvrt\u00fd rok, kdy habry obecn\u00e9 ra\u0161\u00ed v\u00a0prvn\u00ed b\u0159eznov\u00e9 dek\u00e1d\u011b, p\u0159esto\u017ee pr\u016fm\u011brn\u00fd term\u00edn za obdob\u00ed let 1951\u00a0a\u017e 2025\u00a0t\u00e9to v\u00fdvojov\u00e9 (tzv. fenologick\u00e9) f\u00e1ze je 4.\u00a0dubna. <\/p>\n

<\/a><\/p>\n

\u201eTrend posunu fenologick\u00fdch f\u00e1z\u00ed habr\u016f do d\u0159\u00edv\u011bj\u0161\u00ed doby pozorujeme ji\u017e od 90.\u00a0let minul\u00e9ho stolet\u00ed a\u00a0v sou\u010dasnosti je term\u00edn t\u00e9to f\u00e1ze usp\u00ed\u0161en a\u017e o\u00a021\u00a0dn\u00ed. Z\u00a0po\u010d\u00e1tku dubna (v 50.\u00a0a\u00a060.\u00a0letech minul\u00e9ho stolet\u00ed) se ra\u0161en\u00ed posunulo do poloviny b\u0159ezna (v dek\u00e1d\u011b 2011\u00a0a\u017e 2020) a\u00a0v posledn\u00edch \u010dty\u0159ech letech a\u017e na po\u010d\u00e1tek b\u0159ezna,\u201c popsala situaci Barto\u0161ov\u00e1. <\/p>\n

Z\u0159ejm\u00e9 je to z\u00a0grafu, kter\u00fd bude odpoledne dostupn\u00fd na webu<\/a> Fenologick\u00e9 f\u00e1ze.<\/p>\n

Tepl\u00fd za\u010d\u00e1tek jara mohou vyst\u0159\u00eddat no\u010dn\u00ed mrazy<\/p>\n

Za brzk\u00fd n\u00e1stup jara mohou nadpr\u016fm\u011brn\u011b vysok\u00e9 teploty, kter\u00e9 v\u00a0\u010cesku panuj\u00ed u\u017e od konce \u00fanora. Nadpr\u016fm\u011brn\u00e9 teploty vydr\u017e\u00ed minim\u00e1ln\u011b do konce pracovn\u00edho t\u00fddne. Maxim\u00e1ln\u00ed denn\u00ed teploty budou v\u00a0nejteplej\u0161\u00edch oblastech nad 15\u00a0\u00b0C, co\u017e je zhruba o\u00a010\u00a0\u00b0C v\u00edce, ne\u017e je pro za\u010d\u00e1tek b\u0159ezna obvykl\u00e9. <\/p>\n

Podle Barto\u0161ov\u00e9 tak bude v\u00fdvoj rostlin pokra\u010dovat. Brzy tak patrn\u011b vykvetou meru\u0148ky v\u00a0Lednici, p\u0159ed dv\u011bma lety to bylo 11.\u00a0b\u0159ezna, co\u017e je nejd\u0159\u00edve od za\u010d\u00e1tku pozorov\u00e1n\u00ed v\u00a0roce 1961.<\/p>\n

O v\u00edkendu mohou b\u00fdt teploty je\u0161t\u011b vysok\u00e9, ale je zde velk\u00e1 nejistota v\u00a0p\u0159edpov\u011bdi a\u00a0teploty u\u017e mohou za\u010d\u00edt klesat. Je v\u0161ak dosti pravd\u011bpodobn\u00e9, \u017ee od p\u0159\u00ed\u0161t\u00edho t\u00fddne teploty klesnou k\u00a0dlouhodob\u00fdm pr\u016fm\u011br\u016fm, a\u00a0to znamen\u00e1, \u017ee budou \u010dast\u011bj\u0161\u00ed a\u00a0del\u0161\u00ed no\u010dn\u00ed mrazy. <\/p>\n

Fenologick\u00fd t\u00fdm Akademie v\u011bd \u010cR a\u00a0Mendelovy univerzity monitoruje ra\u0161en\u00ed habr\u016f a\u00a0dal\u0161\u00edch d\u0159evin a\u00a0tak\u00e9 kveten\u00ed bylin na stejn\u00fdch lokalit\u00e1ch nep\u0159etr\u017eit\u011b 76\u00a0let a\u00a0posledn\u00ed \u010dty\u0159i roky jsou mimo\u0159\u00e1dn\u00e9 i\u00a0v porovn\u00e1n\u00ed s\u00a0p\u0159ede\u0161l\u00fdmi 20\u00a0lety. <\/p>\n

D\u00edky dlouhodob\u00fdm pozorov\u00e1n\u00edm tzv. fenof\u00e1z\u00ed rostlin, ale nap\u0159\u00edklad i\u00a0kladen\u00ed pta\u010d\u00edch vajec, lze velmi dob\u0159e sledovat odezvu na r\u016fst teplot a\u00a0dlouhodob\u011b na prob\u00edhaj\u00edc\u00ed klimatickou zm\u011bnu. Term\u00edny sledovan\u00fdch fenof\u00e1z\u00ed nast\u00e1vaj\u00ed \u010d\u00edm d\u00e1l d\u0159\u00edve. Jejich posun nen\u00ed podle Barto\u0161ov\u00e9 lok\u00e1ln\u00ed z\u00e1le\u017eitost\u00ed, ale jevem v\u00a0cel\u00e9 st\u0159edn\u00ed Evrop\u011b, z\u00a0r\u016fzn\u00fdch zahrani\u010dn\u00edch studi\u00ed je z\u0159ejm\u00fd celosv\u011btov\u00fd trend.<\/p>\n

Pro p\u011bstitele ovoce je to op\u011bt neradostn\u00e1 zpr\u00e1va, proto\u017ee no\u010dn\u00ed mrazy mohou p\u0159ij\u00edt kdykoliv a\u017e do poloviny kv\u011btna a\u00a0\u00farodu po\u0161kodit \u010di \u00fapln\u011b zni\u010dit, co\u017e se st\u00e1v\u00e1 v\u00a0posledn\u00edch letech pom\u011brn\u011b pravideln\u011b.<\/p>\n

<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"V\u011bdci tzv. fenologick\u00e9 f\u00e1ze rostlin sleduj\u00ed na ji\u017en\u00ed Morav\u011b nep\u0159etr\u017eit\u011b od roku 1951.\u00a0Podoba startu jara se v\u0161ak li\u0161\u00ed.…\n","protected":false},"author":2,"featured_media":19474,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[43,42,41,40,159,7630,2894,255,1441],"class_list":{"0":"post-19473","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-cesko","8":"tag-ceska-republika","9":"tag-cesko","10":"tag-czech-republic","11":"tag-czechia","12":"tag-klima","13":"tag-kvety","14":"tag-pestovani","15":"tag-pocasi","16":"tag-teploty"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/116203220035526712","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/19473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/comments?post=19473"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/19473\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/19474"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=19473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=19473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=19473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}