{"id":3953,"date":"2022-02-06T04:53:58","date_gmt":"2022-02-06T04:53:58","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=3953"},"modified":"2022-02-06T04:53:58","modified_gmt":"2022-02-06T04:53:58","slug":"sudden-aspen-decline-a-case-study-in-the-impact-of-drought-on-forest-health","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/hu\/science\/ecology\/sudden-aspen-decline-a-case-study-in-the-impact-of-drought-on-forest-health\/","title":{"rendered":"Hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s: Az asz\u00e1ly hat\u00e1sai az erd\u0151k eg\u00e9szs\u00e9g\u00e9re"},"content":{"rendered":"<h2 class=\"wp-block-heading\">A hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s: esettanulm\u00e1ny az erd\u0151k eg\u00e9szs\u00e9g\u00e9t \u00e9rint\u0151 hat\u00e1sair\u00f3l<\/h2>\n\n<h2 class=\"wp-block-heading\">Mi az a hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s?<\/h2>\n\n<p>A hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s (SAD) olyan jelens\u00e9g, amely a 2000-es \u00e9vek eleje \u00f3ta \u00e9rinti az Egyes\u00fclt \u00c1llamok nyugati r\u00e9sz\u00e9n tal\u00e1lhat\u00f3 rezg\u0151ny\u00e1rf\u00e1kat. Jellemz\u0151je a rezg\u0151ny\u00e1rf\u00e1k gyors elhal\u00e1sa, gyakran nagy ter\u00fcleteken.<\/p>\n\n<h2 class=\"wp-block-heading\">A hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s t\u00fcnetei<\/h2>\n\n<p>A SAD t\u00fcnetei a k\u00f6vetkez\u0151k:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>A levelek bes\u00e1rgulnak, majd lehullanak<\/li>\n<li>A lombkorona megritkul<\/li>\n<li>Az \u00e1gak elhalnak<\/li>\n<li>A teljes fa elpusztul<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">A hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s okai<\/h2>\n\n<p>A tud\u00f3sok eredetileg \u00fagy gondolt\u00e1k, hogy a sz\u00e9ls\u0151s\u00e9ges asz\u00e1ly \u00e9s a magas h\u0151m\u00e9rs\u00e9kletek, amelyeket val\u00f3sz\u00edn\u0171leg az \u00e9ghajlatv\u00e1ltoz\u00e1s okozott, gyeng\u00edtik meg a f\u00e1kat, \u00e9s ez\u00e1ltal fog\u00e9konyabb\u00e1 teszik azokat a SAD-ra. Azonban egy friss tanulm\u00e1ny meg\u00e1llap\u00edtotta, hogy val\u00f3j\u00e1ban a v\u00edz hi\u00e1nya, nem pedig az \u00e9lelemhi\u00e1ny az asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s els\u0151dleges oka.<\/p>\n\n<h2 class=\"wp-block-heading\">A hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s hat\u00e1sai a k\u00f6rnyezetre<\/h2>\n\n<p>A rezg\u0151ny\u00e1rf\u00e1k az Egyes\u00fclt \u00c1llamok nyugati r\u00e9sz\u00e9n tal\u00e1lhat\u00f3 \u00f6kosziszt\u00e9ma fontos r\u00e9sz\u00e9t k\u00e9pezik. \u00c9lelmet \u00e9s \u00e9l\u0151helyet biztos\u00edtanak a vadon \u00e9l\u0151 \u00e1llatok sz\u00e1m\u00e1ra, seg\u00edtik a talaj stabiliz\u00e1l\u00e1s\u00e1t \u00e9s szab\u00e1lyozz\u00e1k a v\u00edz\u00e1raml\u00e1st. A rezg\u0151ny\u00e1rf\u00e1k pusztul\u00e1sa hull\u00e1mz\u00f3 hat\u00e1ssal lehet az eg\u00e9sz \u00f6kosziszt\u00e9m\u00e1ra.<\/p>\n\n<h2 class=\"wp-block-heading\">A hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s megel\u0151z\u00e9se<\/h2>\n\n<p>A SAD-ra nincs ismert gy\u00f3gym\u00f3d, azonban vannak olyan l\u00e9p\u00e9sek, amelyekkel seg\u00edthetj\u00fck a megel\u0151z\u00e9s\u00e9t. Ezek a k\u00f6vetkez\u0151k:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>A v\u00edzhi\u00e1ny cs\u00f6kkent\u00e9se a rezg\u0151ny\u00e1rf\u00e1k olyan ter\u00fcleteken t\u00f6rt\u00e9n\u0151 \u00fcltet\u00e9s\u00e9vel, ahol elegend\u0151 a nedvess\u00e9g<\/li>\n<li>A v\u00edz \u00e9s a t\u00e1panyagok\u00e9rt folytatott verseny cs\u00f6kkent\u00e9se a rezg\u0151ny\u00e1rf\u00e1k ritk\u00edt\u00e1s\u00e1val<\/li>\n<li>A rezg\u0151ny\u00e1rf\u00e1kat gyeng\u00edt\u0151 k\u00e1rtev\u0151k \u00e9s betegs\u00e9gek ellen\u0151rz\u00e9se<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Az \u00e9ghajlatv\u00e1ltoz\u00e1s szerepe a hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9sben<\/h2>\n\n<p>Az \u00e9ghajlatv\u00e1ltoz\u00e1s val\u00f3sz\u00edn\u0171leg \u00fagy j\u00e1rul hozz\u00e1 a SAD-hoz, hogy n\u00f6veli az asz\u00e1lyok gyakoris\u00e1g\u00e1t \u00e9s s\u00falyoss\u00e1g\u00e1t az Egyes\u00fclt \u00c1llamok nyugati r\u00e9sz\u00e9n. Ahogy az \u00e9ghajlatv\u00e1ltoz\u00e1s folytat\u00f3dik, v\u00e1rhat\u00f3an a SAD egyre gyakoribb\u00e1 v\u00e1lik.<\/p>\n\n<h2 class=\"wp-block-heading\">A rezg\u0151ny\u00e1r j\u00f6v\u0151je az amerikai nyugaton<\/h2>\n\n<p>A rezg\u0151ny\u00e1r j\u00f6v\u0151je az amerikai nyugaton bizonytalan. Ha az asz\u00e1lyok egyre gyakoribb\u00e1 \u00e9s s\u00falyosabb\u00e1 v\u00e1lnak, a SAD val\u00f3sz\u00edn\u0171leg m\u00e9g sz\u00e9lesebb k\u00f6rben elterjed. Ennek jelent\u0151s hat\u00e1sa lehet az \u00f6kosziszt\u00e9m\u00e1ra \u00e9s a r\u00e9gi\u00f3 gazdas\u00e1g\u00e1ra.<\/p>\n\n<h2 class=\"wp-block-heading\">Tov\u00e1bbi inform\u00e1ci\u00f3k<\/h2>\n\n<ul class=\"wp-block-list\">\n<li>A hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s m\u00e1s r\u00e9gi\u00f3kban is \u00e9rinti a rezg\u0151ny\u00e1rf\u00e1kat, t\u00f6bbek k\u00f6z\u00f6tt Kanad\u00e1ban \u00e9s Eur\u00f3p\u00e1ban.<\/li>\n<li>A v\u00edzhi\u00e1ny \u00e1ltal\u00e1ban nagy vesz\u00e9lyt jelent a f\u00e1k eg\u00e9szs\u00e9g\u00e9re.<\/li>\n<li>Az asz\u00e1ly miatti stressz a f\u00e1k lombhull\u00e1s\u00e1t \u00e9s pusztul\u00e1s\u00e1t is okozhatja.<\/li>\n<li>A v\u00edz fontoss\u00e1g\u00e1t a f\u00e1k \u00e9let\u00e9ben nem lehet t\u00falbecs\u00fclni.<\/li>\n<li>A bubor\u00e9kok hat\u00e1sa a v\u00edzell\u00e1t\u00e1sra puszt\u00edt\u00f3 lehet a f\u00e1k sz\u00e1m\u00e1ra.<\/li>\n<li>A gy\u00f6kereknek alapvet\u0151 szerepe van a f\u00e1k eg\u00e9szs\u00e9g\u00e9ben.<\/li>\n<li>Az olyan egy\u00e9b vesz\u00e9lyekre val\u00f3 fog\u00e9konys\u00e1g, mint p\u00e9ld\u00e1ul a rovarok \u00e9s a gomb\u00e1s fert\u0151z\u00e9sek, nagy aggodalomra ad okot a gyeng\u00fclt f\u00e1k eset\u00e9ben.<\/li>\n<li>Az erd\u0151k jelent\u0151s\u00e9g\u00e9t a k\u00f6rnyezet sz\u00e1m\u00e1ra j\u00f3l dokument\u00e1lt\u00e1k.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>A hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s: esettanulm\u00e1ny az erd\u0151k eg\u00e9szs\u00e9g\u00e9t \u00e9rint\u0151 hat\u00e1sair\u00f3l Mi az a hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s? A hirtelen asz\u00e1ly miatti t\u00fcneti visszaes\u00e9s (SAD) olyan jelens\u00e9g, amely&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[590],"tags":[2990,34,7321,7360,7361,219],"class_list":["post-3953","post","type-post","status-publish","format-standard","hentry","category-ecology","tag-drought","tag-climate-change","tag-forest-health","tag-sudden-aspen-decline","tag-aspen-trees","tag-ecology"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/3953","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/comments?post=3953"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/3953\/revisions"}],"predecessor-version":[{"id":3954,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/posts\/3953\/revisions\/3954"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/media?parent=3953"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/categories?post=3953"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/hu\/wp-json\/wp\/v2\/tags?post=3953"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}