Dendroclimatology of Torrey pine (Pinus torreyana Parry ex Carr.)
Dendroclimatology of Torrey pine (Pinus torreyana Parry ex Carr.)
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DOI：
10.2307/2426817
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发表时间：
1997-10-01
影响因子：
0.6
通讯作者：
Berger, WH
中科院分区：
文献类型：
--
作者：
Biondi, F;Cayan, DR;Berger, WH
托利松（Pinus torreyana Parry ex Carr.）是松属中地理范围和种群规模最有限的物种之一：它只存在于圣罗莎岛和圣地亚哥和德尔马之间的海岸。由于托利松在其有限的自然分布范围内的生存取决于成年树种群的健康和气候敏感性，我们进行了一项树木气气学研究，以量化优势树对气候的长期反应。利用从加州圣迭戈托里松国家保护区17棵树中提取的28个增量岩心，建立了一个168年的树木年轮年代学（1827-1994）。树木年轮样本在视觉上和数字上进行了交叉年代测定，以确定每个生长增量的准确日历年。年树木生长与前一年11月至今年4月的降水量有高度直接关系。温度不是树木生长的显著预测因子。在季节尺度上，树木生长与冬春降水高度直接相关，与夏雾也显著相关。然而，当在多元回归模型中结合冬春降水时，夏雾对树木生长没有显著的预测作用。1900年以后（1900-1949年为64%，1950-1994年为70%）的11月至4月总降水量比1900年以前（1850-1899年为48%）的方差更大。与北美西部冬季和春季降水的空间相关性，以及与已发表的树木年轮年表，揭示了与美国西南部的联系。与冬季海平面压力和海表温度的全球相关图表明，托利松的生长得益于北太平洋风暴路径的偏南偏移和更南的温暖海水，这表明与低纬度湿气输送增加有关。
Torrey pine (Pinus torreyana Parry ex Carr.) has one of the most limited geographical ranges and population size in the Pinus genus: it is present only on Santa Rosa Island and on the coast between San Diego and Del Mar. Because the survival of Torrey pine within its limited natural distribution depends on the health and climatic sensitivity of the adult tree population, we performed a dendroclimatological study to quantify the long-term response of dominant trees to climate. A 168-yr tree-ring chronology (1827-1994) was developed using a total of 28 increment cores extracted from 17 trees at Torrey Pines State Reserve, San Diego, California. Tree-ring samples were visually and numerically crossdated to assign accurate calendar years to each growth increment. Annual tree growth was highly and directly related to precipitation falling between the previous November and the current April. Temperature was not a significant predictor of tree growth. At seasonal scale, tree growth was highly and directly related to winter and spring precipitation, and was also significantly correlated to summer fog. However, when combined with winter and spring precipitation in multiple regression models, summer fog was not a significant predictor of tree growth. Total November through April precipitation explained a larger amount of variance after 1900 (64% in 1900-1949, 70% in 1950-1994) than before 1900 (48% in 1850-1899). The spatial correlation with western North America winter and spring precipitation, as well as with published tree-ring chronologies, reveals a link with the American Southwest. Global correlation maps with winter sea level pressure and sea surface temperature indicate that Torrey pine growth benefits from a southerly displaced North Pacific storm track and from warmer ocean water further south, suggesting a connection with increased transport of lower latitude moisture.