{"id":82260,"date":"2025-06-27T00:24:09","date_gmt":"2025-06-26T22:24:09","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=82260"},"modified":"2025-06-26T13:27:01","modified_gmt":"2025-06-26T11:27:01","slug":"vice-co2-zpusobuje-ze-stromy-rostou-do-vetsi-velikosti","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2025\/06\/27\/vice-co2-zpusobuje-ze-stromy-rostou-do-vetsi-velikosti\/","title":{"rendered":"V\u00edce CO2 zp\u016fsobuje, \u017ee stromy rostou do v\u011bt\u0161\u00ed velikosti"},"content":{"rendered":"
<\/div>\n

Hnojiv\u00fd \u00fa\u010dinek v\u011bt\u0161\u00edho mno\u017estv\u00ed CO2 ve vzduchu nejen zaji\u0161\u0165uje, \u017ee rostliny l\u00e9pe rostou a Zem\u011b se st\u00e1v\u00e1 zelen\u011bj\u0161\u00ed \u2013 stromy tak\u00e9 rostou vy\u0161\u0161\u00ed ne\u017e d\u0159\u00edve. Klimatick\u00e9 apokalyptiky v mainstreamov\u00fdch m\u00e9di\u00edch v\u0161ak takov\u00e9 studie nezaj\u00edmaj\u00ed. Nezapadaj\u00ed do narativu.<\/span><\/strong><\/p>\n

Hladiny CO2 v atmosf\u00e9\u0159e stoupaj\u00ed ji\u017e po cel\u00e1 desetilet\u00ed. To vede klimatick\u00e9 fanatiky k hyperventilaci, proto\u017ee d\u016fsledn\u011b ignoruj\u00ed dal\u0161\u00ed klimatick\u00e9 faktory, kter\u00e9 p\u0159isp\u00edvaj\u00ed ke glob\u00e1ln\u00edmu oteplov\u00e1n\u00ed, ale pro rostliny z\u00e1visl\u00e9 na fotosynt\u00e9ze je to p\u0159\u00ednos. Jak ji\u017e d\u0159\u00edve uvedl server Report24, rostouc\u00ed hladiny CO2 v atmosf\u00e9\u0159e postupn\u011b prom\u011b\u0148uj\u00ed Zemi v\u00a0<\/span>zelen\u00fd r\u00e1j<\/span><\/a> .<\/span><\/p>\n

Nav\u00edc se tento druh rostliny vyvinul\u00a0<\/span>v dob\u011b<\/span><\/a>\u00a0, kdy byl obsah oxidu uhli\u010dit\u00e9ho ve vzduchu asi t\u0159ikr\u00e1t vy\u0161\u0161\u00ed ne\u017e dnes \u2013 a p\u0159i v\u00fdrazn\u011b vy\u0161\u0161\u00edch koncentrac\u00edch CO2 dosahovaly velikost\u00ed, kter\u00e9 jsou dnes t\u00e9m\u011b\u0159 nep\u0159edstaviteln\u00e9. \u010c\u00edm si mysl\u00edte, \u017ee tehdy \u017eili ob\u0159\u00ed b\u00fdlo\u017erav\u00ed dinosau\u0159i? Stromy s listy tak mal\u00fdmi, jako ty, kter\u00e9 zn\u00e1me dnes? To sotva.<\/span><\/p>\n

\"\"
V dob\u011b dinosaur\u016f byly hladiny CO2 v\u00fdrazn\u011b vy\u0161\u0161\u00ed ne\u017e dnes \u2013 a rostliny byly mnohem v\u011bt\u0161\u00ed. (C) Report24\/KI<\/span><\/em><\/figcaption><\/figure>\n

Experiment se staford\u0161\u00edrsk\u00fdm dubem<\/span><\/h3>\n

Od roku 2017 prov\u00e1d\u00ed Birminghamsk\u00fd institut pro lesn\u00ed v\u00fdzkum kontrolovan\u00fd experiment s obohacov\u00e1n\u00edm CO2 v \u00fasec\u00edch 180 let star\u00e9ho dubov\u00e9ho lesa ve Staffordshire v Anglii. Hladiny oxidu uhli\u010dit\u00e9ho se tam zv\u00fd\u0161ily na 550 ppm (p\u0159irozen\u00e1 \u00farove\u0148 je v sou\u010dasnosti 420 ppm).\u00a0<\/span>V\u00fdsledkem<\/span><\/a> je, \u017ee duby rostou o 10 procent rychleji ne\u017e ty, kter\u00e9 nedost\u00e1valy \u017e\u00e1dn\u00fd dal\u0161\u00ed CO2. V\u011bdci odhaduj\u00ed, \u017ee tyto stromy tak\u00e9 produkuj\u00ed p\u0159ibli\u017en\u011b 1,7 tuny su\u0161iny na hektar ro\u010dn\u011b nav\u00edc.<\/span><\/p>\n

Na siln\u00e9m slune\u010dn\u00edm sv\u011btle zvy\u0161uj\u00ed vzrostl\u00e9 duby svou fotosynt\u00e9zu a\u017e o t\u0159etinu. V\u011bt\u0161inu CO2 tak\u00e9 ukl\u00e1daj\u00ed ve d\u0159ev\u011b, nikoli v listech, kde pom\u011br uhl\u00edku a dus\u00edku z\u016fst\u00e1v\u00e1 stabiln\u00ed. To znamen\u00e1, \u017ee se stromy snadno adaptuj\u00ed.<\/span><\/p>\n

Podobn\u00e9 v\u00fdsledky i jinde<\/span><\/h3>\n

V borovicov\u00e9m lese Duke v okrese Orange v Severn\u00ed Karol\u00edn\u011b v USA, kde byly provedeny podobn\u00e9 experimenty s koncentracemi CO2 o 200 ppm vy\u0161\u0161\u00edmi, byly z\u00edsk\u00e1ny\u00a0<\/span>srovnateln\u00e9 v\u00fdsledky<\/span><\/a>\u00a0. Stromy rostly o 27 procent rychleji a fotosynt\u00e9za v korun\u011b se zv\u00fd\u0161ila o polovinu. Skute\u010dn\u00e1 velikost strom\u016f (zv\u011bt\u0161en\u00ed baz\u00e1ln\u00ed plochy) se zv\u00fd\u0161ila o 13 a\u017e 27 procent.<\/span><\/p>\n

To je v souladu s\u00a0<\/span>obecn\u00fdmi studiemi<\/span><\/a> r\u016fzn\u00fdch lesn\u00edch skupin ve Spojen\u00fdch st\u00e1tech, kter\u00e9 ukazuj\u00ed, \u017ee v\u0161echny (s v\u00fdjimkou osiky a b\u0159\u00edzy) za posledn\u00edch 50 let zv\u00fd\u0161ily sv\u016fj objem na hektar. R\u016fst biomasy se zv\u00fd\u0161il a\u017e o 30 procent. V\u011bdci odhaduj\u00ed, \u017ee samotn\u00e9 lesy v USA zachycuj\u00ed p\u0159ibli\u017en\u011b 10 a\u017e 13 procent celkov\u00fdch emis\u00ed CO2 v zemi.<\/span><\/p>\n

CO2 znamen\u00e1 \u017eivot<\/span><\/h3>\n

Vzhledem k tomu, \u017ee se ji\u017e v historii Zem\u011b nach\u00e1z\u00edme\u00a0<\/span>v \u00e9\u0159e n\u00edzk\u00fdch emis\u00ed CO2<\/span><\/a>\u00a0a \u017ee hladiny pod 150 ppm by zp\u016fsobily masov\u00e9 vym\u00edr\u00e1n\u00ed rostlin (a n\u00e1sledn\u011b i zbytku \u017eivota na sou\u0161i), jsou rostouc\u00ed hladiny po\u017eehn\u00e1n\u00edm pro \u017eivot.<\/span><\/p>\n

Na\u0161e Zem\u011b se nakonec sama \u201ereguluje\u201c prost\u0159ednictv\u00edm sv\u00fdch mnoha klimatick\u00fdch cykl\u016f. \u017divot na na\u0161\u00ed planet\u011b ji\u017e p\u0159e\u017eil n\u011bkolik masov\u00fdch vym\u00edr\u00e1n\u00ed a postupem \u010dasu se zotavil. Lidstvo, kter\u00e9 se objevilo v podstatn\u011b teplej\u0161\u00edch dob\u00e1ch ne\u017e dnes a p\u0159e\u017eilo dokonce i nep\u0159\u00edzniv\u00e9 podm\u00ednky doby ledov\u00e9, se s nimi dok\u00e1\u017ee vyrovnat. I my jsme p\u0159izp\u016fsobiv\u00ed \u2013 stejn\u011b jako samotn\u00e1 p\u0159\u00edroda.<\/span><\/p>\n

\"\"<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Hnojiv\u00fd \u00fa\u010dinek v\u011bt\u0161\u00edho mno\u017estv\u00ed CO2 ve vzduchu nejen zaji\u0161\u0165uje, \u017ee rostliny l\u00e9pe rostou a Zem\u011b…<\/p>\n","protected":false},"author":2,"featured_media":82261,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[9374,67,873,5520],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/82260"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=82260"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/82260\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/82261"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=82260"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=82260"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=82260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}