{"id":145617,"date":"2026-07-12T10:57:11","date_gmt":"2026-07-12T10:57:11","guid":{"rendered":"https:\/\/www.europesays.com\/cz\/145617\/"},"modified":"2026-07-12T10:57:11","modified_gmt":"2026-07-12T10:57:11","slug":"stometrovi-stromovi-obri-z-bornea-celi-suchu-mnohem-lepe-nez-ostatni-dreviny-ukazal-vyzkum-z-ceska","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/cz\/145617\/","title":{"rendered":"Stometrov\u00ed stromov\u00ed ob\u0159i z\u00a0Bornea \u010del\u00ed suchu mnohem l\u00e9pe ne\u017e ostatn\u00ed d\u0159eviny, uk\u00e1zal v\u00fdzkum z\u00a0\u010ceska"},"content":{"rendered":"

V\u00fdzkum vyvrac\u00ed hypot\u00e9zu, \u017ee hydraulick\u00fd syst\u00e9m uvnit\u0159 t\u011bchto obr\u016f b\u011bhem st\u00e1le \u010dast\u011bj\u0161\u00edch obdob\u00ed sucha selh\u00e1v\u00e1. Byl by to velk\u00fd probl\u00e9m, proto\u017ee tyto megastromy jsou d\u016fle\u017eit\u00e9 pro ukl\u00e1d\u00e1n\u00ed uhl\u00edku, tvorbu biomasy, regulaci mikroklimatu a\u00a0tak\u00e9 pro podporu biodiverzity. Nov\u00e1 studie byla tento m\u011bs\u00edc publikov\u00e1na v\u00a0presti\u017en\u00edm mezin\u00e1rodn\u00edm v\u011bdeck\u00e9m \u010dasopise Science<\/a>.<\/p>\n

Nejvy\u0161\u0161\u00ed tropick\u00e9 stromy, kter\u00e9 pat\u0159\u00ed do \u010deledi Dipterocarpaceae (dvojk\u0159\u00eddl\u00e1\u010dovit\u00e9), dominuj\u00ed zachoval\u00fdm de\u0161tn\u00fdm prales\u016fm Bornea a\u00a0tvo\u0159\u00ed p\u00e1te\u0159 lesn\u00edch ekosyst\u00e9m\u016f jihov\u00fdchodn\u00ed Asie. Dosud se p\u0159edpokl\u00e1dalo, \u017ee jejich v\u00fd\u0161ka p\u0159edstavuje v\u00a0obdob\u00edch sucha z\u00e1sadn\u00ed nev\u00fdhodu. Obr denn\u011b pot\u0159ebuje vy\u017eivovat sv\u00e9 v\u011btve a\u00a0listy stovkami litr\u016f vody. Bez n\u00ed uhyne.<\/p>\n

Pochopen\u00ed biologie nejvy\u0161\u0161\u00edch d\u0159evin pom\u016f\u017ee odhadnout budouc\u00ed uhl\u00edkov\u00e9 z\u00e1soby tropick\u00fdch les\u016f. Pouh\u00e9 jedno procento nejvy\u0161\u0161\u00edch strom\u016f obsahuje v\u00edce ne\u017e polovinu nadzemn\u00edho mno\u017estv\u00ed uhl\u00edku ulo\u017een\u00e9ho v\u00a0t\u011bchto les\u00edch. Dosavadn\u00ed klimatick\u00e9 modely p\u0159itom p\u0159edpokl\u00e1daly, \u017ee pr\u00e1v\u011b tyto stromy budou v\u00a0dob\u011b sucha nejv\u00edce odum\u00edrat.<\/p>\n

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

\u201eNa\u0161e studie ale ukazuje, \u017ee v\u00fd\u0161ka nem\u00e1 negativn\u00ed vliv na transport vody, co\u017e nazna\u010duje nutnost p\u0159ehodnotit st\u00e1vaj\u00edc\u00ed modely dopad\u016f klimatick\u00e9 zm\u011bny,\u201c uvedla Palasiah Jotan z\u00a0Fakulty lesnick\u00e9 a\u00a0d\u0159eva\u0159sk\u00e9 \u010cesk\u00e9 zem\u011bd\u011blsk\u00e9 univerzity (\u010cZU) v\u00a0Praze. Na unik\u00e1tn\u00edm v\u00fdzkumu se pod\u00edlela s\u00a0kolegy z\u00a0brn\u011bnsk\u00e9 Mendelovy univerzity a\u00a0s p\u0159\u00edrodov\u011bdci z\u00a0dal\u0161\u00edch \u0161esti zem\u00ed.<\/p>\n

V\u00fdzkumn\u00edci sledovali stromy r\u016fzn\u00fdch velikost\u00ed v\u00a0malajsijsk\u00e9 \u010d\u00e1sti Bornea, a\u00a0to ve st\u00e1t\u011b Sabah. Od b\u00e1ze kmene a\u017e po koruny strom\u016f m\u011b\u0159ili pr\u016fm\u011br c\u00e9v zaji\u0161\u0165uj\u00edc\u00edch transport vody, vlastnosti list\u016f souvisej\u00edc\u00ed s\u00a0odolnost\u00ed v\u016f\u010di vodn\u00edmu stresu i\u00a0r\u016fst strom\u016f p\u0159ed obdob\u00edm sucha, b\u011bhem n\u011bj a\u00a0po jeho skon\u010den\u00ed v\u00a0letech 2023\u00a0a\u017e 2024, kdy oblast zas\u00e1hl klimatick\u00fd jev El Ni\u00f1o.<\/p>\n

V\u00fdsledky uk\u00e1zaly, \u017ee vysok\u00e9 stromy jsou p\u0159izp\u016fsobeny tomu, aby dok\u00e1zaly odolat i\u00a0suchu.<\/p>\n

Foto: Arne Scheire<\/p>\n

V\u011bdci b\u011bhem v\u00fdzkumu \u0161plhali do korun vysok\u00fdch strom\u016f z\u00a0\u010deledi Dipterocarpaceae.<\/p>\n

Pro ov\u011b\u0159en\u00ed reakce ob\u0159\u00edch strom\u016f na stres suchem pou\u017eili v\u011bdci automatick\u00e9 dendrometry spole\u010dn\u011b s\u00a0mikroklimatick\u00fdmi senzory, kter\u00e9 jsou schopny p\u0159esn\u011b zaznamenat r\u016fst strom\u016f pod vlivem prost\u0159ed\u00ed. Pou\u017eit\u00e9 p\u0159\u00edstroje jsou technologi\u00ed vyrobenou p\u0159\u00edmo v\u00a0\u010cesk\u00e9 republice.<\/p>\n

\u201eZjistili jsme, \u017ee ob\u0159\u00ed stromy b\u011bhem zat\u00edm posledn\u00edho obdob\u00ed El Ni\u00f1o nesn\u00ed\u017eily sv\u016fj r\u016fst tak jako stromy men\u0161\u00ed. Naopak vykazovaly men\u0161\u00ed pokles r\u016fstu i\u00a0rychlej\u0161\u00ed n\u00e1vrat k\u00a0hodnot\u00e1m typick\u00fdm p\u0159ed obdob\u00edm sucha,\u201c doplnil dendrolog Radim Matula z\u00a0\u010cZU.<\/p>\n

Foto: Palisah Jotan<\/p>\n

Ode\u010det dat z\u00a0automatick\u00fdch dendrometr\u016f na ob\u0159\u00edch tropick\u00fdch stromech<\/p>\n

<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"V\u00fdzkum vyvrac\u00ed hypot\u00e9zu, \u017ee hydraulick\u00fd syst\u00e9m uvnit\u0159 t\u011bchto obr\u016f b\u011bhem st\u00e1le \u010dast\u011bj\u0161\u00edch obdob\u00ed sucha selh\u00e1v\u00e1. Byl by to…\n","protected":false},"author":2,"featured_media":145618,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[7],"tags":[20355,43,42,41,40,27314,11456,18117,1445,1505,7031,4095],"class_list":["post-145617","post","type-post","status-publish","format-standard","has-post-thumbnail","category-cesko","tag-borneo","tag-ceska-republika","tag-cesko","tag-czech-republic","tag-czechia","tag-czu","tag-malajsie","tag-mendelu","tag-priroda","tag-stromy","tag-sucho","tag-vyzkum"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/116906652210554765","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/145617","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=145617"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/145617\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/145618"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=145617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=145617"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=145617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}