{"id":71,"date":"2014-02-09T20:29:21","date_gmt":"2014-02-09T19:29:21","guid":{"rendered":"http:\/\/fraxinus.mendelu.cz\/vymladkovelesy\/?page_id=71"},"modified":"2017-02-01T14:58:11","modified_gmt":"2017-02-01T13:58:11","slug":"svetliny","status":"publish","type":"page","link":"https:\/\/fraxinus.mendelu.cz\/vymladkovelesy\/svetliny\/","title":{"rendered":"Sv\u011btliny"},"content":{"rendered":"

Velk\u00fd v\u00fdznam pro biodiverzitu starobyl\u00fdch v\u00fdmladkov\u00fdch les\u016f maj\u00ed sv\u011btliny, vznikl\u00e9 bu\u010f p\u0159irozen\u011b jako stepn\u00ed \u010di lesostepn\u00ed polanky na extr\u00e9mn\u00edch ekotopech, nebo um\u011ble jako lu\u010dn\u00ed \u010di pastevn\u00ed enkl\u00e1vy. Sv\u011btliny jsou v\u00fdznamn\u00fdmi refugii mnoha vz\u00e1cn\u00fdch a ohro\u017een\u00fdch druh\u016f rostlin a tak\u00e9 hmyzu (Konvi\u010dka et al. 2004).<\/p>\n

<\/a>
Lesn\u00ed polanka siln\u011b ovliv\u0148ovan\u00e1 zv\u011b\u0159\u00ed v NPR T\u00fd\u0159ov<\/figcaption><\/figure>\n

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Druhov\u00e1 diverzita bylinn\u00e9ho patra pa\u0159ezin m\u00e1 kol\u00edsav\u00fd charakter d\u00edky kol\u00eds\u00e1n\u00ed p\u0159\u00edkonu sv\u011btla p\u0159i cyklick\u00e9 obnov\u011b a n\u00e1r\u016fstu d\u0159evinn\u00fdch pater. Po vyt\u011b\u017een\u00ed porostu a ponech\u00e1n\u00ed v\u00fdstavk\u016f je druhov\u00e1 diverzita bylinn\u00e9ho patra zna\u010dn\u00e1, je zde n\u00e1padn\u00e9 st\u0159\u00edd\u00e1n\u00ed st\u00ednomiln\u00fdch a n\u00e1ro\u010dn\u00fdch sv\u011btlomiln\u00fdch druh\u016f. Mozaika t\u011bchto druh\u016f se v\u0161ak dynamicky m\u011bn\u00ed a sv\u011btlomiln\u00fdch druh\u016f ub\u00fdv\u00e1 vlivem postupn\u00e9ho zar\u016fst\u00e1n\u00ed plochy d\u0159evinami. Shodn\u00fd nebo velmi podobn\u00fd efekt zalo\u017een\u00fd na dostate\u010dn\u00e9m p\u0159\u00edkonu sv\u011btla mohou m\u00edt p\u0159irozen\u00e9 sv\u011btliny listnat\u00fdch les\u016f, p\u0159edev\u0161\u00edm teplomiln\u00fdch, bazifiln\u00edch nebo kysel\u00fdch doubrav a tak\u00e9 panonsk\u00fdch dubohab\u0159in. Vegetace a jej\u00ed floristick\u00e9 slo\u017een\u00ed na t\u011bchto sv\u011btlin\u00e1ch b\u00fdvaj\u00ed trvalej\u0161\u00edho r\u00e1zu ne\u017e v\u00a0pa\u0159ezin\u00e1ch po t\u011b\u017eb\u011b, kde je prokazateln\u011b vy\u0161\u0161\u00ed dynamika druhov\u00e9ho slo\u017een\u00ed bylinn\u00e9ho patra. Sv\u011btliny mohou vznikat n\u011bkolika zp\u016fsoby.<\/p>\n

Prvn\u00ed mo\u017enost\u00ed je vznik p\u0159irozen\u00fd – geologick\u00fd podklad horninov\u00fd je bl\u00edzk\u00fd povrchu p\u016fdy a p\u016fda je natolik m\u011blk\u00e1, \u017ee zde nemohou r\u016fst d\u0159eviny. Uplat\u0148uj\u00ed se zde ve v\u011bt\u0161\u00ed m\u00ed\u0159e xerofiln\u00ed byliny. Pom\u011br jednolet\u00fdch terofyt\u016f v\u016f\u010di vytrval\u00fdm druh\u016fm m\u016f\u017ee b\u00fdt velmi r\u016fzn\u00fd. T\u011bmto sv\u011btlin\u00e1m se \u010dasto \u0159\u00edkalo pol\u00e1nky nebo ple\u0161e, m\u011bly \u00b1 trval\u00fd charakter a zna\u010dnou druhovou diverzitu. Vegetace, kter\u00e1 pokr\u00fdvala pol\u00e1nky, byla slo\u017eena z\u00a0druh\u016f sv\u011btl\u00fdch listnat\u00fdch teplomiln\u00fdch les\u016f, ale i z\u00a0druh\u016f lemov\u00fdch nebo dal\u0161\u00edch nelesn\u00edch xerofiln\u00edch-xerotermn\u00edch druh\u016f, v\u00a0men\u0161\u00ed m\u00ed\u0159e i terofyt\u016f v\u00a0z\u00e1vislosti na hloubce p\u016fdy. Takov\u00e9 pol\u00e1nky tvo\u0159ily lesostepn\u00ed charakter spole\u010denstev teplomiln\u00fdch les\u016f st\u0159edn\u00ed Evropy na ji\u017en\u00edch svaz\u00edch kopc\u016f s\u00a0konvexn\u00edm tvarem reli\u00e9fu v\u00a0tepl\u00fdch oblastech \u010cR, co\u017e jsou z\u00e1rove\u0148 oblasti vy\u0161\u0161\u00edho zastoupen\u00ed pa\u0159ezin. Kr\u00e1sn\u00fdm p\u0159\u00edkladem je lokalita Doutn\u00e1\u010d v\u00a0\u010cesk\u00e9m krasu, NPR T\u00fd\u0159ov v\u00a0CHKO K\u0159ivokl\u00e1tsko nebo n\u011bkter\u00e9 \u010dedi\u010dov\u00e9 kupy v\u00a0\u010cesk\u00e9m st\u0159edoho\u0159\u00ed. Na ji\u017en\u00ed Morav\u011b mohou b\u00fdt p\u0159\u00edkladem zn\u00e1m\u00e9 lokality jako ji\u017en\u00ed str\u00e1n\u011b kopce H\u00e1dy v\u00a0Brn\u011b-Malom\u011b\u0159ic\u00edch, Lys\u00e1 hora u Ochozu u Brna, slepencov\u00e9 str\u00e1n\u011b u Moravsk\u00e9ho Krumlova, Rokytn\u00e9, Budkovic a Miroslavi, ji\u017en\u00ed a\u017e jihoz\u00e1padn\u00ed str\u00e1n\u011b nad \u0159ekou K\u0159epi\u010dkou na Znojemsku, lokalita Katovn\u011b u Bo\u0159etic-Kobyl\u00ed nebo konvexn\u00ed svahy ve \u010dlenit\u00e9m \u00fadol\u00ed \u0159eky Dyje v\u00a0NP Podyj\u00ed (nap\u0159. Hardeck\u00e1 str\u00e1\u0148).<\/p>\n

<\/a>
Sv\u011btlina ve slepencov\u00e9 str\u00e1ni nad Rokytnou u Budkovic<\/figcaption><\/figure>\n

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Druhou mo\u017enost\u00ed je vznik podm\u00edn\u011bn\u00fd z\u00e1sahem \u010dlov\u011bka a to pokud je vy\u0159\u00edznut napaden\u00fd nebo mrtv\u00fd strom a utvo\u0159\u00ed se sv\u011btlina, na kterou expanduj\u00ed sv\u011btlomiln\u00e9 druhy z\u00a0bl\u00edzk\u00e9ho okol\u00ed, a kter\u00e1 znovu nezar\u016fst\u00e1 d\u0159evinami. Zde naopak m\u016f\u017ee b\u00fdt dynamika bylinn\u00e9ho patra zna\u010dn\u00e1. K\u00a0jej\u00edmu ust\u00e1len\u00ed v\u0161ak doch\u00e1z\u00ed b\u011bhem n\u011bkolika let. Nebo m\u016f\u017ee nastat obdobn\u00e1 situace vyt\u011b\u017een\u00edm porostu ve st\u0159edn\u00edm (n\u00edzk\u00e9m) lese. Po sm\u00fdcen\u00ed porostu a ponech\u00e1n\u00ed v\u00fdstavk\u016f je sv\u011bteln\u00fd efekt na rostliny velmi vysok\u00fd, postupn\u011b se sni\u017euje a s\u00a0n\u00edm se sni\u017euje i po\u010det a pokryvnost jednotliv\u00fdch druh\u016f bylinn\u00e9ho patra. Sv\u011btlomiln\u00e9 ub\u00fdvaj\u00ed a migruj\u00ed na okraje porost\u016f nebo do m\u00edst dosud nezast\u00edn\u011bn\u00fdch d\u0159evinami. Pokud je mozaika d\u0159evin a otev\u0159en\u00fdch m\u00edst pestr\u00e1, m\u016f\u017ee b\u00fdt o to druhov\u011b bohat\u0161\u00ed rostlinn\u00fd sv\u011bt v\u00a0takto obhospoda\u0159ovan\u00fdch porostech. Tyto sv\u011btliny v\u0161ak podl\u00e9haj\u00ed zna\u010dn\u00e9 dynamice vlivem postupn\u00e9ho zar\u016fst\u00e1n\u00ed d\u0159evinami.<\/p>\n

Floristick\u00e9 slo\u017een\u00ed sv\u011btlin m\u016f\u017ee b\u00fdt zna\u010dn\u011b podobn\u00e9 druhov\u00e9mu slo\u017een\u00ed na lemu t\u011bchto listnat\u00fdch les\u016f v\u00a0z\u00e1vislosti na expozici ke sv\u011btov\u00e9 stran\u011b nebo sklonu ter\u00e9nu. Tyto lemov\u00e9 druhy, kter\u00fdm \u0159\u00edk\u00e1me v\u00a0na\u0161\u00ed zem\u011bpisn\u00e9 d\u00e9lce lesostepn\u00ed, mohou b\u00fdt spole\u010dn\u00e9 s\u00a0druhy na lesn\u00edch sv\u011btlin\u00e1ch. Druhy, kter\u00e9 prov\u00e1z\u00ed sv\u011btliny, pat\u0159\u00ed k\u00a0diagnostick\u00fdm druh\u016fm stepn\u00edch (\u00fazkolist\u00fdch) tr\u00e1vn\u00edk\u016f sv. Festucion<\/em> valesiaceae<\/em>, na v\u00e1pnit\u00fdch terci\u00e9rn\u00edch sedimentech ke druh\u016fm \u0161irokolist\u00fdch tr\u00e1vn\u00edk\u016f sv. Bromion<\/em> (v\u010d. Cirsio-Brachypodion<\/em>), ale tak\u00e9 lemov\u00fdch spole\u010denstev sv. Geranion sanguinei<\/em>. Sem pat\u0159\u00ed typick\u00e9 lemov\u00e9 a sv\u011btlinov\u00e9 druhy jako jsou Anemone sylvestris, Brachypodium pinnatum, Bupleurum falcatum, Carex michelii, Dictamnus albus, Euphorbia epithymoides, Geranium sanguineum, Origanum vulgare, Peucedanum cervaria, Polygonatum odoratum, Tanaceum corymbosum, Trifolium alpestre <\/em>a Vincetoxicum hirundinaria<\/em>. K\u00a0nim se dru\u017e\u00ed cel\u00e1 plej\u00e1da dal\u0161\u00edch b\u011b\u017en\u00fdch druh\u016f, kter\u00e9 prov\u00e1z\u00ed na cel\u00e9 ji\u017en\u00ed Morav\u011b a v\u00a0nejteplej\u0161\u00ed \u010d\u00e1sti \u010cech tyto typy fytocen\u00f3z (Acinos arvensis, Clinopodium vulgare, Helianthemum obscurum, Koeleria macrantha, Phleum phleoides<\/em>). Jsou to m\u00edsta nejen vy\u0161\u0161\u00ed druhov\u00e9 diverzity, ale \u010dasto i m\u00edsta v\u00fdskytu populac\u00ed zvl\u00e1\u0161t\u011b chr\u00e1n\u011bn\u00fdch nebo ohro\u017een\u00fdch druh\u016f (Centaurea triumfettii, Clematis recta, Dictamnus albus, Iris variegata<\/em>) (Chytr\u00fd et al. 2010; Chytr\u00fd 2013).<\/p>\n

<\/a>
Na sv\u011btlin\u00e1ch v teplej\u0161\u00edch oblastech \u010cR m\u016f\u017eeme nal\u00e9zt t\u0159emdavu b\u00edlou<\/figcaption><\/figure>\n

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Na rozd\u00edl od teplomiln\u00fdch doubrav je jin\u00e1 situace u porost\u016f, kde byly v\u00fdmladn\u00fdm zp\u016fsobem obnovov\u00e1ny dubohab\u0159iny a uplat\u0148uj\u00ed se zde nejen druhy teplomiln\u00e9, ale i b\u011b\u017en\u00e9 mezofiln\u00ed, hajn\u00ed. Ur\u010duj\u00edc\u00edmi podm\u00ednkami jsou: na jak\u00e9m podkladu geologick\u00e9m se nach\u00e1zej\u00ed nebo na kterou sv\u011btovou stranu jsou uklon\u011bny. Z\u00a0druh\u016f typick\u00fdch pro tyto porosty a jejich sv\u011btliny to jsou nap\u0159\u00edklad tyto: Agrimonia eupatorium, Astragalus glycyphyllos, Chamaecytisus supinus, Digitalis grandiflora, Fragaria moschata, Genista tinctoria, Melampyrum nemorosum, Poa angustifolia, Trifolium medium<\/em> a n\u011bkolik dal\u0161\u00edch nen\u00e1ro\u010dn\u00fdch termofyt\u016f.<\/p>\n

Druhov\u00e9 slo\u017een\u00ed sv\u011btlin kysel\u00fdch doubrav a dubohab\u0159in na odv\u00e1pn\u011bn\u00fdch substr\u00e1tech (nap\u0159. spra\u0161ov\u00e9 hl\u00edny) je takt\u00e9\u017e zcela odli\u0161n\u00e9. Takov\u00e9 sv\u011btliny mohly b\u00fdt domovem i vysok\u00fdch trav nebo mnoha acidofyt\u016f, kter\u00e9 jsou b\u011b\u017en\u011b p\u0159\u00edtomny v\u00a0bylinn\u00e9m patru t\u011bchto les\u016f a sn\u00e1\u0161\u00ed dob\u0159e vy\u0161\u0161\u00ed efekt dotace sv\u011btla po prosv\u011btlen\u00ed nebo se \u00fa\u010dastn\u00ed vegetace edaficky podm\u00edn\u011bn\u00fdch sv\u011btlin. Rostou zde druhy jako Calamagrostis arundinacea, Melampyrum pratense, Molinia arundinacea, Poa nemoralis, Potentilla erecta<\/em>, na oligotrofn\u00edm a acidofiln\u00edm podkladu ke\u0159\u00ed\u010dky Calluna vulgaris, Genista germanica, Vaccinium myrtillus<\/em>, graminoidy Avenella flexuosa, Carex pilulifera, Festuca ovina, Luzula campestris<\/em> a b\u011b\u017en\u00e9 acidofiln\u00ed druhy jako Hieracium pilosella, Hypericum perforatum, Thymus serpyllum<\/em> a Veronica officinalis<\/em>.<\/p>\n

Druhov\u011b bohat\u00e9 sv\u011btliny doubrav a dubohab\u0159in mohou b\u00fdt v\u00e1\u017en\u011b po\u0161kozeny n\u011bkter\u00fdmi lesnick\u00fdmi z\u00e1sahy za sou\u010dasn\u00e9 disturbance povrchu p\u016fdy a po\u0161kozen\u00ed vegeta\u010dn\u00edho krytu. Po takov\u00e9m z\u00e1sahu m\u016f\u017ee prob\u011bhnout sukcese, kter\u00e1 ji\u017e nen\u00ed zakon\u010dena stejn\u00fdm druhov\u00fdm slo\u017een\u00edm a m\u016f\u017ee b\u00fdt negativn\u011b obohacena v\u00edce nitrofiln\u00edmi\/ruder\u00e1ln\u00edmi druhy, kter\u00e9 d\u00edky \u00fa\u010dinn\u00e9mu typu migrace diaspor v\u00a0krajin\u011b se mohou uplatnit na t\u011bchto obna\u017een\u00fdch plo\u0161k\u00e1ch. Mus\u00edme tak\u00e9 po\u010d\u00edtat se zm\u011bn\u011bnou ekologi\u00ed takov\u00fdchto biotop\u016f, v\u010detn\u011b dodatku \u017eivin, p\u0159edev\u0161\u00edm dus\u00edku, p\u0159ich\u00e1zej\u00edc\u00edho v podob\u011b imis\u00ed. Tato situace m\u016f\u017ee b\u00fdt za\u010d\u00e1tkem v\u00fdrazn\u00e9 a trval\u00e9 zm\u011bny v druhov\u00e9m slo\u017een\u00ed sv\u011btlin nebo uvoln\u011bn\u00fdch sv\u011btl\u00fdch \u010d\u00e1st\u00ed t\u011bchto les\u016f.<\/p>\n

Dal\u0161\u00edm v\u00e1\u017en\u00fdm ohro\u017een\u00edm m\u016f\u017ee b\u00fdt nadm\u011brn\u00e1 pastva lesn\u00ed zv\u011b\u0159e (tak\u00e9 oborn\u00ed chov), ryc\u00ed aktivita prasete divok\u00e9ho p\u0159i jeho p\u0159emno\u017een\u00ed nebo i prost\u00e9 ponech\u00e1n\u00ed nehroub\u00ed na sv\u011btlin\u011b po sk\u00e1cen\u00e9m jedinci nebo po prob\u00edrce.<\/p>\n

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P\u0159\u00edklady:<\/span><\/p>\n

ORP BRNO, LOKALITA BOSONO\u017dSK\u00dd H\u00c1JEK<\/b><\/p>\n

Poloha a hranice<\/i>: Polanka obklopen\u00e1 lesn\u00edmi porosty se stromy p\u0159ev\u00e1\u017en\u011b v\u00fdmladkov\u00e9ho p\u016fvodu ve v\u00fdchodn\u00ed \u010d\u00e1sti Bosono\u017esk\u00e9ho h\u00e1jku.<\/p>\n

Ekotop<\/i>: T\u00e1hl\u00fd m\u00edrn\u00fd svah JV expozice v\u00a0nadm. v\u00fd\u0161ce 330-346 m. Na hlubok\u00e9m spra\u0161ov\u00e9m p\u0159ekryvu mapov\u00e1na luvizem mod\u00e1ln\u00ed.<\/p>\n

Geobiocenologick\u00e1 typologie<\/i>: 2 BD 3<\/strong>: Fagi-querceta tiliae<\/i> (lipov\u00e9 bukov\u00e9 doubravy), typ geobioc\u00e9n\u016f: Carex montana \u2013 Mellittis mellisophyllum \u2013 Cypripedium calceolus.<\/i><\/p>\n

Biota:<\/i> Pro spole\u010denstvo t\u00e9to sv\u011btliny je nejvhodn\u011bj\u0161\u00ed ozna\u010den\u00ed polanka. Jedn\u00e1 se o blokovan\u00e9 ran\u00e9 st\u00e1dium sekund\u00e1rn\u00ed sukcese sm\u011brem k\u00a0lesn\u00edm spole\u010denstv\u016fm. Sukcese je blokov\u00e1na periodick\u00fdm kosen\u00edm. Floristickou skladbou je spole\u010denstvo polanky bl\u00edzk\u00e9 k\u00a0typu biotopu T\u00a03.4 \u0160irokolist\u00e9 such\u00e9 tr\u00e1vn\u00edky (Chytr\u00fd et al. 2001), nebo\u0165 se zde vyskytuje \u0159ada diagnostick\u00fdch druh\u016f tohoto typu biotopu, nap\u0159. Carex montana, Carlina vulgaris, Centaurea scabiosa, Fragaria viridis, Plantago media, Potentilla heptaphylla, Ranunculus polyanthemus, Salvia pratensis<\/i>. Dominantn\u00edm druhem je ov\u0161em v\u00e1le\u010dka lesn\u00ed (Brachypodium sylvaticum<\/i>).\u00a0 V\u00a0minulosti, p\u0159ed roz\u0161\u00ed\u0159en\u00edm polanky na z\u00e1pad, zde byl na dnes odt\u011b\u017een\u00e9m lesn\u00edm okraji n\u011bkolikr\u00e1t zaznamen\u00e1n v\u00fdskyt siln\u011b ohro\u017een\u00e9ho druhu Corallorhiza trifida,\u00a0 <\/i>(Vla\u0161\u00ednov\u00e1 1987), v\u00a0sou\u010dasnosti nepotvrzen\u00fd.\u00a0\u00a0\u00a0 \u00a0<\/i><\/p>\n

Sou\u010dasn\u00fd stav<\/i>: Druhov\u011b bohat\u00e9 travino-bylinn\u00e9 spole\u010denstvo (zji\u0161t\u011bno 148 druh\u016f rostlin) s v\u00fdskytem vz\u00e1cn\u00fdch vstava\u010dovit\u00fdch, p\u0159edev\u0161\u00edm druhu Cypripedium calceolus. <\/i>Na\u00a0severov\u00fdchodn\u00edm okraji polanky pod skupinou osik vedle str\u017ee se vyskytuje vz\u00e1cn\u011b Epipactis atrorubens, <\/i>pom\u011brn\u011b vz\u00e1cn\u011b i Epipactis muelleri.\u00a0 Z<\/i>e vstava\u010dovit\u00fdch maj\u00ed po\u010detn\u011b nejvy\u0161\u0161\u00ed zastoupen\u00ed oba druhy vemen\u00edk\u016f (Platanthera bifolia<\/i> i\u00a0P.\u00a0chlorantha<\/i>)a to zejm\u00e9na pobl\u00ed\u017e osik na okraj\u00edch polanky.<\/i> Po cel\u00e9 plo\u0161e je v\u00fdskyt p\u0159irozen\u00e9ho zmlazen\u00ed d\u0159evin (zji\u0161t\u011bno 16 druh\u016f).<\/p>\n

Z\u00e1sady p\u00e9\u010de<\/i>: Periodicky kosit. V\u00a0severoz\u00e1padn\u00ed \u010d\u00e1sti (v m\u00edst\u011b v\u00fdskytu st\u0159evi\u010dn\u00edku) nechat vyr\u016fst n\u011bkolik strom\u016f nebo ke\u0159\u016f, kter\u00e9 by v\u00a0budoucnu br\u00e1nily pojezdu motorov\u00fdch vozidel.<\/p>\n","protected":false},"excerpt":{"rendered":"

Velk\u00fd v\u00fdznam pro biodiverzitu starobyl\u00fdch v\u00fdmladkov\u00fdch les\u016f maj\u00ed sv\u011btliny, vznikl\u00e9 bu\u010f p\u0159irozen\u011b jako stepn\u00ed \u010di lesostepn\u00ed polanky na extr\u00e9mn\u00edch ekotopech, nebo um\u011ble jako lu\u010dn\u00ed \u010di pastevn\u00ed enkl\u00e1vy. Sv\u011btliny jsou v\u00fdznamn\u00fdmi refugii mnoha vz\u00e1cn\u00fdch a ohro\u017een\u00fdch druh\u016f rostlin a tak\u00e9 hmyzu (Konvi\u010dka et al. 2004). Druhov\u00e1 diverzita bylinn\u00e9ho patra pa\u0159ezin m\u00e1 kol\u00edsav\u00fd charakter d\u00edky kol\u00eds\u00e1n\u00ed p\u0159\u00edkonu … <\/p>\n

Pokra\u010dovat ve \u010dten\u00ed „Sv\u011btliny“<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-71","page","type-page","status-publish","hentry"],"yoast_head":"\nSv\u011btliny - Starobyl\u00e9 v\u00fdmladkov\u00e9 lesy, jejich v\u00fdznam a udr\u017eitelnost v\u00a0kulturn\u00ed krajin\u011b<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fraxinus.mendelu.cz\/vymladkovelesy\/svetliny\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sv\u011btliny - Starobyl\u00e9 v\u00fdmladkov\u00e9 lesy, jejich v\u00fdznam a udr\u017eitelnost v\u00a0kulturn\u00ed krajin\u011b\" \/>\n<meta property=\"og:description\" content=\"Velk\u00fd v\u00fdznam pro biodiverzitu starobyl\u00fdch v\u00fdmladkov\u00fdch les\u016f maj\u00ed sv\u011btliny, vznikl\u00e9 bu\u010f p\u0159irozen\u011b jako stepn\u00ed \u010di lesostepn\u00ed polanky na extr\u00e9mn\u00edch ekotopech, nebo um\u011ble jako lu\u010dn\u00ed \u010di pastevn\u00ed enkl\u00e1vy. 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