Forward modeling of regional scale tree-ring patterns in the southeastern United States and the recent influence of summer drought
Forward modeling of regional scale tree-ring patterns in the southeastern United States and the recent influence of summer drought
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DOI：
10.1029/2005gl025050
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发表时间：
2006-02-21
影响因子：
5.2
通讯作者：
Cane, MA
中科院分区：
文献类型：
--
作者：
Anchukaitis, KJ;Evans, MN;Cane, MA
我们使用的树木年轮形成的机械模型，以模拟在美国东南部的气候树木生长关系的区域模式。模拟年表与实际的树木年轮数据是一致的，这表明我们的模拟有能力再现大规模的代理模式对气候变化的反应。该模型预测，夏季降水减少，与减弱百慕大高，已成为一个额外的控制树轮生长在最近几十年。树木生长对气候变率的非线性响应对古气候重建和预测生态系统对气候变化的响应具有重要意义。
We use a mechanistic model of tree-ring formation to simulate regional patterns of climate-tree growth relationships in the southeastern United States. Modeled chronologies are consistent with actual tree-ring data, demonstrating that our simulations have skill in reproducing broad-scale patterns of the proxy's response to climate variability. The model predicts that a decrease in summer precipitation, associated with a weakening Bermuda High, has become an additional control on tree ring growth during recent decades. A nonlinear response of tree growth to climate variability has implications for the calibration of tree-ring records for paleoclimate reconstructions and the prediction of ecosystem responses to climate change.