A 3620-Year Temperature Record from Fitzroya cupressoides Tree Rings in Southern South America
作者： A. Lara , R. Villalba
DOI: 10.1126/SCIENCE.260.5111.1104
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摘要: A tree-ring width chronology of alerce trees ( Fitzroya cupressoides ) from southern Chile was used to produce an annually resolved 3622-year reconstruction departures mean summer temperatures (December March) for South America. The longest interval with above-average 80 B.C. A.D. 160. Long intervals below-average were recorded 300 470 and 1490 1700. Neither this proxy temperature record nor instrumental data America latitudes between 35° 44°S provide evidence a warming trend during the last decades century that could be related anthropogenic causes. also indicate is second living tree after bristlecone pine Pinus Iongaeva ).
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