{"id":18421,"date":"2019-02-05T22:45:36","date_gmt":"2019-02-05T22:45:36","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=18421"},"modified":"2019-02-05T22:45:36","modified_gmt":"2019-02-05T22:45:36","slug":"treeline-advance-in-a-changing-arctic","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/tr\/science\/environmental-science\/treeline-advance-in-a-changing-arctic\/","title":{"rendered":"De\u011fi\u015fen Bir Arktik’te Orman S\u0131n\u0131r\u0131n\u0131n \u0130lerlemesi"},"content":{"rendered":"

De\u011fi\u015fen Bir Arktik’te Orman S\u0131n\u0131r\u0131n\u0131n \u0130lerlemesi<\/h2>\n\n

\u0130klim De\u011fi\u015fikli\u011fi ve Orman S\u0131n\u0131r\u0131n\u0131n \u0130lerlemesi<\/h2>\n\n

\u0130klim de\u011fi\u015fikli\u011fi nedeniyle Arktik \u0131s\u0131n\u0131rken, bilim insanlar\u0131 orman s\u0131n\u0131r\u0131nda, a\u011fa\u00e7lar\u0131n b\u00fcy\u00fcyemeyece\u011fi s\u0131n\u0131r\u0131n \u00f6tesinde \u00f6nemli de\u011fi\u015fiklikler g\u00f6zlemliyorlar. Alaska’daki Brooks S\u0131rada\u011flar\u0131’nda ara\u015ft\u0131rmac\u0131lar, s\u0131cakl\u0131k ve kurakl\u0131\u011f\u0131n orman s\u0131n\u0131r\u0131n\u0131n ilerlemesini nas\u0131l etkiledi\u011fini inceliyorlar.<\/p>\n\n

Besin Maddelerindeki S\u0131n\u0131rlamalar ve Orman S\u0131n\u0131r\u0131n\u0131n \u0130lerlemesi<\/h2>\n\n

Do\u011fu Brooks S\u0131rada\u011flar\u0131’nda, permafrostun \u00e7\u00f6z\u00fclmesi ve besin maddelerindeki s\u0131n\u0131rlamalar orman s\u0131n\u0131r\u0131n\u0131n ilerlemesini yava\u015flat\u0131yor olabilir. Permafrost, iki y\u0131ldan fazla s\u00fcreyle donmu\u015f kalan donmu\u015f toprak, bitki b\u00fcy\u00fcmesi i\u00e7in gerekli olan besinleri i\u00e7erir. Permafrost \u00e7\u00f6z\u00fcnd\u00fck\u00e7e bu besin maddeleri a\u00e7\u0131\u011fa \u00e7\u0131kar, ancak baz\u0131 b\u00f6lgelerde \u00e7\u00f6z\u00fcnme s\u00fcreci, mikrobiyal aktiviteyi ve besin \u00fcretimini te\u015fvik edebilecek \u0131s\u0131y\u0131 emer. Bu besin eksikli\u011fi, Do\u011fu Brooks S\u0131rada\u011flar\u0131’nda a\u011fa\u00e7lar\u0131n b\u00fcy\u00fcmesini s\u0131n\u0131rlayabilir.<\/p>\n\n

\u00c7\u00f6z\u00fclen Permafrost ve Termokarst Olu\u015fumu<\/h2>\n\n

\u00c7\u00f6z\u00fclen permafrost ayr\u0131ca, buz bak\u0131m\u0131ndan zengin permafrostun erimesi nedeniyle aniden olu\u015fan yer \u00e7\u00f6kmesi olan termokarst olu\u015fumuna neden olur. Termokarst yap\u0131lar, atmosfere b\u00fcy\u00fck miktarlarda karbon salabilir ve ayr\u0131ca bitkiler ve hayvanlar i\u00e7in yeni ya\u015fam alanlar\u0131 olu\u015fturabilir.<\/p>\n\n

Permafrost \u00c7\u00f6z\u00fcnmesinden Karbon Sal\u0131n\u0131m\u0131<\/h2>\n\n

Permafrost, d\u00fcnyadaki t\u00fcm a\u011fa\u00e7lardan daha fazla karbon i\u00e7erir. Permafrost \u00e7\u00f6z\u00fcnd\u00fck\u00e7e bu karbon atmosfere sal\u0131n\u0131r ve iklim de\u011fi\u015fikli\u011fine daha da katk\u0131da bulunur. Bilim insanlar\u0131 hala permafrost \u00e7\u00f6z\u00fcnmesinden kaynaklanan karbon sal\u0131n\u0131m\u0131n\u0131n kesin oran\u0131n\u0131 anlamak i\u00e7in \u00e7al\u0131\u015f\u0131yorlar, ancak bunun \u00f6nemli oldu\u011fu tahmin ediliyor.<\/p>\n\n

Orman S\u0131n\u0131r\u0131n\u0131n \u0130lerlemesinde Tarihsel Oranlar<\/h2>\n\n

Orman s\u0131n\u0131r\u0131n\u0131n ilerlemesinin nas\u0131l de\u011fi\u015fti\u011fini anlamak i\u00e7in bilim insanlar\u0131 ge\u00e7mi\u015f ve g\u00fcncel hava foto\u011fraflar\u0131n\u0131 kar\u015f\u0131la\u015ft\u0131r\u0131yorlar. Ge\u00e7mi\u015f ilerleme oranlar\u0131n\u0131 inceleyerek, mevcut oran\u0131n al\u0131\u015f\u0131lmad\u0131k olup olmad\u0131\u011f\u0131n\u0131 veya uzun vadeli bir e\u011filimin par\u00e7as\u0131 olup olmad\u0131\u011f\u0131n\u0131 belirleyebilirler.<\/p>\n\n

Ekolog Roman Dial’\u0131n Arktik Ke\u015fifleri<\/h2>\n\n

Ekolog Roman Dial, Arktik vah\u015fi do\u011fas\u0131n\u0131 ke\u015ffederek meydana gelen de\u011fi\u015fiklikleri do\u011frudan g\u00f6zlemleyerek onlarca y\u0131l ge\u00e7irdi. G\u00f6llerin kaybolmas\u0131na ve yeni termokarst yap\u0131lar\u0131n olu\u015fmas\u0131na tan\u0131k oldu. Dial’\u0131n \u00e7al\u0131\u015fmalar\u0131, iklim de\u011fi\u015fikli\u011finin Arktik \u00fczerindeki etkileri konusunda fark\u0131ndal\u0131\u011f\u0131 art\u0131rmaya yard\u0131mc\u0131 oldu.<\/p>\n\n

Ku\u015flar ve Yaban Hayat\u0131 Rol\u00fc<\/h2>\n\n

Arktik ekosistemi de\u011fi\u015ftik\u00e7e, ku\u015f ve yaban hayat\u0131 pop\u00fclasyonlar\u0131 da de\u011fi\u015fiyor. Dial, son birka\u00e7 on y\u0131lda ku\u015f pop\u00fclasyonlar\u0131nda bir azalma g\u00f6zlemledi. Ayn\u0131 zamanda iklim \u0131s\u0131nd\u0131k\u00e7a Arktik’e ta\u015f\u0131nan yeni t\u00fcrlerle kar\u015f\u0131la\u015ft\u0131.<\/p>\n\n

Orman S\u0131n\u0131r\u0131n\u0131n \u0130lerlemesinin Gelece\u011fi<\/h2>\n\n

Gelecekte Arktik’te orman s\u0131n\u0131r\u0131n\u0131n ilerlemesi belirsiz. Bilim insanlar\u0131 hala iklim de\u011fi\u015fikli\u011fi, permafrost \u00e7\u00f6z\u00fcnmesi, besin maddelerindeki s\u0131n\u0131rlamalar ve di\u011fer fakt\u00f6rler aras\u0131ndaki karma\u015f\u0131k etkile\u015fimleri anlamaya \u00e7al\u0131\u015f\u0131yorlar. Ancak Arktik’in h\u0131zla de\u011fi\u015fti\u011fi ve bu de\u011fi\u015fikliklerin ekosistem \u00fczerinde \u00f6nemli bir etkiye sahip oldu\u011fu a\u00e7\u0131k.<\/p>\n\n

Bilimsel Ke\u015fif ve \u0130\u015fbirli\u011finin \u00d6nemi<\/h2>\n\n

Arktik’te orman s\u0131n\u0131r\u0131n\u0131n ilerlemesini incelemek karma\u015f\u0131k ve zorlu bir giri\u015fimdir. Ekoloji, klimatoloji ve jeoloji gibi \u00e7e\u015fitli disiplinlerden bilim insanlar\u0131 aras\u0131nda i\u015fbirli\u011fi gerektirir. Bilim insanlar\u0131 birlikte \u00e7al\u0131\u015farak, meydana gelen de\u011fi\u015fiklikler ve bunlar\u0131n Arktik ve \u00f6tesi \u00fczerindeki potansiyel etkileri hakk\u0131nda daha iyi bir anlay\u0131\u015f elde edebilirler.<\/p>\n\n

Uzak ve De\u011fi\u015fen Ortamlar\u0131 \u0130ncelemenin Zorluklar\u0131 ve \u00d6d\u00fclleri<\/h2>\n\n

Arktik gibi uzak ve de\u011fi\u015fen ortamlar\u0131 incelemek benzersiz zorluklar sunar. Ara\u015ft\u0131rmac\u0131lar a\u015f\u0131r\u0131 hava ko\u015fullar\u0131, zorlu arazi ve s\u0131n\u0131rl\u0131 kaynak eri\u015fimiyle m\u00fccadele etmelidir. Ancak bu \u00e7al\u0131\u015fman\u0131n \u00f6d\u00fclleri de b\u00fcy\u00fck. Bu ortamlar\u0131 inceleyerek bilim insanlar\u0131, iklim de\u011fi\u015fikli\u011finin etkileri hakk\u0131nda de\u011ferli bilgiler edinebilir ve koruma ve y\u00f6netim stratejilerine yard\u0131mc\u0131 olabilirler.<\/p>","protected":false},"excerpt":{"rendered":"

De\u011fi\u015fen Bir Arktik’te Orman S\u0131n\u0131r\u0131n\u0131n \u0130lerlemesi \u0130klim De\u011fi\u015fikli\u011fi ve Orman S\u0131n\u0131r\u0131n\u0131n \u0130lerlemesi \u0130klim de\u011fi\u015fikli\u011fi nedeniyle Arktik \u0131s\u0131n\u0131rken, bilim insanlar\u0131 orman s\u0131n\u0131r\u0131nda, a\u011fa\u00e7lar\u0131n b\u00fcy\u00fcyemeyece\u011fi s\u0131n\u0131r\u0131n \u00f6tesinde \u00f6nemli de\u011fi\u015fiklikler g\u00f6zlemliyorlar. Alaska’daki Brooks…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38],"tags":[24087,1354,24088,219,34,24089],"class_list":["post-18421","post","type-post","status-publish","format-standard","hentry","category-environmental-science","tag-treeline-advance","tag-arctic","tag-permafrost-thaw","tag-ecology","tag-climate-change","tag-nutrient-limitations"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/18421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=18421"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/18421\/revisions"}],"predecessor-version":[{"id":18422,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/18421\/revisions\/18422"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=18421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=18421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=18421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}