![](\"https:\/\/www.europesays.com\/cz\/wp-content\/uploads\/2026\/07\/lesy-sucho-stromy-mendelu.jpeg\")
Foto: Mendelu<\/p>\n
Instalace jedn\u00e9 z\u00a0m\u011brn\u00fdch stanic.<\/p>\n
Na sever od Brna se t\u00e1hne Masaryk\u016fv les, jeho\u017e sou\u010d\u00e1st\u00ed je i\u00a0\u010d\u00e1st Chr\u00e1n\u011bn\u00e9 krajinn\u00e9 oblasti Moravsk\u00fd kras. Hospoda\u0159\u00ed v\u00a0n\u011bm \u0161koln\u00ed lesn\u00ed podnik Mendelovy univerzity, kter\u00fd v\u00a0n\u011bm m\u00e1 rozm\u00edst\u011bno 14\u00a0online m\u011b\u0159ic\u00edch stanic. Jsou sou\u010d\u00e1st\u00ed v\u00fdzkumn\u00e9 s\u00edt\u011b DendroNetwork.<\/p>\n
Stanice sleduj\u00ed \u0159adu ukazatel\u016f p\u0159\u00edmo v\u00a0lesn\u00edch porostech a\u00a0umo\u017e\u0148uj\u00ed v\u011bdc\u016fm vyhodnocovat aktu\u00e1ln\u00ed stav strom\u016f i\u00a0jejich reakci na m\u011bn\u00edc\u00ed se podm\u00ednky prost\u0159ed\u00ed. M\u011b\u0159\u00ed odezvu strom\u016f na vl\u00e1hov\u00fd stres a\u00a0umo\u017e\u0148uj\u00ed zachytit i\u00a0\u010dasn\u00e9 projevy zhor\u0161uj\u00edc\u00ed se \u201evodn\u00ed dostupnosti\u201c.<\/p>\n
Data odborn\u00edky p\u0159ekvapila<\/p>\n
Aktu\u00e1ln\u00ed data odborn\u00edk\u016fm ukazuj\u00ed, \u017ee stres suchem na konci \u010dervna dos\u00e1hl \u00farovn\u011b, kter\u00e1 je o\u010dek\u00e1van\u00e1 sp\u00ed\u0161e na vrcholu nebo v\u00a0z\u00e1v\u011bru l\u00e9ta b\u011bhem dlouh\u00fdch vln sucha a\u00a0veder. \u201eV datab\u00e1zi nem\u00e1me z\u00e1znam, kter\u00fd by ukazoval tak brzkou a\u00a0z\u00e1rove\u0148 tak intenzivn\u00ed reakci strom\u016f indikuj\u00edc\u00ed jejich stres suchem,\u201c uvedl Jan Krejza z\u00a0\u00dastavu v\u00fdzkumu glob\u00e1ln\u00ed zm\u011bny Akademie v\u011bd \u010cesk\u00e9 republiky (CzechGlobe), kter\u00fd je koordin\u00e1torem m\u011b\u0159\u00edc\u00ed s\u00edt\u011b DendroNetwork.<\/p>\n
Monitoring zahrnuje porosty se smrkem, borovic\u00ed, bukem, dubem i\u00a0mod\u0159\u00ednem. Vyhodnocov\u00e1n\u00ed dat umo\u017e\u0148uje porovn\u00e1vat reakce r\u016fzn\u00fdch druh\u016f d\u0159evin na nedostatek vody, p\u0159esto\u017ee jejich fyziologick\u00e1 odezva je r\u016fzn\u00e1. Reakce jednotliv\u00fdch d\u0159evin na sucho se p\u0159irozen\u011b li\u0161\u00ed.<\/p>\n
Ne ka\u017ed\u00e1 d\u0159evina projevuje stres stejnou m\u00edrou smr\u0161t\u011bn\u00ed kmene a\u00a0ka\u017ed\u00fd druh m\u00e1 odli\u0161nou toleranci v\u016f\u010di nedostatku vody. \u201ePomoc\u00ed ukazatele ozna\u010dovan\u00e9ho jako normalizovan\u00fd vodn\u00ed deficit stromu v\u0161ak lze tyto rozd\u00edly porovn\u00e1vat a\u00a0vyhodnotit celkovou m\u00edru stresu nap\u0159\u00ed\u010d druhy i\u00a0typy porost\u016f,\u201c \u0159ekl Jan Sv\u011btl\u00edk z\u00a0Lesnick\u00e9 a\u00a0d\u0159eva\u0159sk\u00e9 fakulty Mendelovy univerzity.<\/p>\n
Ob\u010dasn\u00e9 bou\u0159ky na suchu nic nem\u011bn\u00ed<\/p>\n
Data v\u011bdc\u016fm ukazuj\u00ed, \u017ee p\u0159i extr\u00e9mn\u00edm nedostatku vody ji\u017e p\u0159est\u00e1v\u00e1 hr\u00e1t z\u00e1sadn\u00ed roli, o\u00a0jakou d\u0159evinu se jedn\u00e1 nebo zda roste v\u00a0monokultu\u0159e \u010di ve sm\u011bsi. V\u00fdrazn\u00e9 projevy nedostatku vody se objevuj\u00ed nap\u0159\u00ed\u010d sledovan\u00fdmi porosty. To potvrzuje mimo\u0159\u00e1dnou intenzitu sou\u010dasn\u00e9ho sucha a\u00a0jeho potenci\u00e1ln\u011b z\u00e1va\u017en\u00e9 dopady na stabilitu a\u00a0vitalitu lesn\u00edch ekosyst\u00e9m\u016f. <\/p>\n
Celou situaci nav\u00edc umoc\u0148uje vlna veder, kter\u00e1 v\u00fdznamn\u011b zvy\u0161uje pot\u0159ebu vody pro vegetaci. Skute\u010dnost, \u017ee ob\u010das vydatn\u011bji zapr\u0161\u00ed, a\u00a0dokonce se objev\u00ed bou\u0159ka i\u00a0s kroupami, na cel\u00e9 situaci nic nem\u011bn\u00ed.<\/p>\n
DendroNetwork je n\u00e1rodn\u00ed v\u00fdzkumn\u00e1 infrastruktura zam\u011b\u0159en\u00e1 na detailn\u00ed sledov\u00e1n\u00ed r\u016fstu a\u00a0fyziologick\u00fdch reakc\u00ed strom\u016f v\u00a0re\u00e1ln\u00e9m \u010dase. Data z\u00a0t\u00e9to s\u00edt\u011b umo\u017e\u0148uj\u00ed l\u00e9pe porozum\u011bt tomu, jak lesn\u00ed porosty reaguj\u00ed na extr\u00e9mn\u00ed klimatick\u00e9 ud\u00e1losti, zejm\u00e9na sucho a\u00a0hork\u00e9 vlny. Aktu\u00e1ln\u00ed data a\u00a0mapy na n\u00e1rodn\u00ed \u00farovni jsou p\u0159\u00edstupn\u00e9 na webu dendronet.cz<\/a>.<\/p>\n Instalace jedn\u00e9 z\u00a0m\u011brn\u00fdch stanic.<\/p>\nFoto: Mendelu<\/p>\n
![](\"https:\/\/www.europesays.com\/cz\/wp-content\/uploads\/2026\/07\/1784127792_715_sucho-kurim.jpeg\")
<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Na sever od Brna se t\u00e1hne Masaryk\u016fv les, jeho\u017e sou\u010d\u00e1st\u00ed je i\u00a0\u010d\u00e1st Chr\u00e1n\u011bn\u00e9 krajinn\u00e9 oblasti Moravsk\u00fd kras. Hospoda\u0159\u00ed…\n","protected":false},"author":2,"featured_media":148647,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[7],"tags":[43,42,41,40,1711,18117,255,1505,7031,4095],"class_list":["post-148646","post","type-post","status-publish","format-standard","has-post-thumbnail","category-cesko","tag-ceska-republika","tag-cesko","tag-czech-republic","tag-czechia","tag-jizni-morava","tag-mendelu","tag-pocasi","tag-stromy","tag-sucho","tag-vyzkum"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@cz\/116924606596835129","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/148646","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=148646"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/posts\/148646\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media\/148647"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/media?parent=148646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/categories?post=148646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/cz\/wp-json\/wp\/v2\/tags?post=148646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}