{"id":3574,"date":"2009-11-22T17:42:50","date_gmt":"2009-11-23T01:42:50","guid":{"rendered":"http:\/\/blogs.kqed.org\/climatewatch\/?p=3574"},"modified":"2009-11-22T17:42:50","modified_gmt":"2009-11-23T01:42:50","slug":"thousand-year-old-trees-get-a-growth-spurt","status":"publish","type":"post","link":"https:\/\/ww2.kqed.org\/climatewatch\/2009\/11\/22\/thousand-year-old-trees-get-a-growth-spurt\/","title":{"rendered":"Thousand-Year-Old Trees Get a Growth Spurt"},"content":{"rendered":"
\"Bristlecone
Bristlecone pine in the Inyo National Forest. Photo: US Forest Service<\/figcaption><\/figure>\n

There’s a lot of history packed into a tree with more than 4,000 annual growth rings. Scientists who count them (dendrochronologists) have been able to learn a lot about the drought history of California and the West.<\/p>\n

The Great Basin bristlecone pines that grow along the spine of the Sierra are the oldest living things on Earth–older, even, than the giant sequoias. Studying the uppermost trees, around 12,000 ft., researchers stumbled on a strange trend. The trees, legendary for their slow rate of growth, have been growing faster over the last 50 years or so, than at any time in the last three millennia.<\/p>\n

If you missed it this week, Malcolm Hughes, one of the study’s lead researchers and a professor of dendrochronology at the University of Arizona’s Laboratory for Tree-Ring Research, spoke to NPR’s All Things Considered<\/em><\/a> about the possible cause.<\/p>\n

There’s more on the study<\/a> in a recent post on the RealClimate blog<\/a>.<\/p>\n

You can see these astonishing trees for yourself in the Ancient Bristlecone Pine Forest<\/a> of Inyo National Forest–but you might want to wait until spring. The visitor center is not staffed between November and May and winter access is iffy at 10,000 feet. Worse yet, the original vistor center burned down in the fall of last year. The Forest Service is using a temporary (trailer) facility until a permanent one is rebuilt. According to the Forest Service website:<\/p>\n

“…the visitor center is being designed to be a model of energy efficiency, utilizing the latest in \u201cgreen\u201d building practices. \u00a0 According to Bristlecone Pine Forest Manager John Louth, some of the improvements that visitors will see will be a state-of-the art solar power system, updated exhibits addressing the impacts of global warming on the ancient trees, a small research library, a slightly larger theatre room and a fire\/intrusion detection & suppression system.”<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Everybody knows that California has bragging rights to the West’s oldest trees: they’re the giant sequoias and coast redwoods, right? Wrong. Some bristlecone pines top the 4,000-year mark. But what explains their recent growth spurt?<\/p>\n","protected":false},"author":221,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[22,33,164,387,581,613],"coauthors":[],"series":[],"affiliates":[],"programs":[],"collections":[],"interests":[],"class_list":["post-3574","post","type-post","status-publish","format-standard","hentry","category-thescience","tag-alpine","tag-arizona","tag-desert","tag-npr","tag-temperature","tag-tree-rings"],"acf":{"template_type":"standard","featured_image_type":"standard","is_audio_post":false},"yoast_head":"\nThousand-Year-Old Trees Get a Growth Spurt | Climate Watch<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/ww2.kqed.org\/climatewatch\/2009\/11\/22\/thousand-year-old-trees-get-a-growth-spurt\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thousand-Year-Old Trees Get a Growth Spurt | Climate Watch\" \/>\n<meta property=\"og:description\" content=\"Everybody knows that California has bragging rights to the West's oldest trees: they're the giant sequoias and coast redwoods, right? 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