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首页> 外文期刊>Journal of forest research >Effects of climatic conditions on tree-ring widths of three deciduous broad-leaved tree species at their northern distribution limit in Mont St. Hilaire, eastern Canada
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Effects of climatic conditions on tree-ring widths of three deciduous broad-leaved tree species at their northern distribution limit in Mont St. Hilaire, eastern Canada

机译：气候条件对加拿大东部圣海莱北部分配限制三个落叶阔叶树种树木宽度的影响

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摘要

This study examined the effects of climatic conditions on tree-ring widths of red oak (Quercus rubra), sugar maple (Acer saccharum) and American beech (Fagus grandifolia) at their northern distribution limit in Mont St. Hilaire, eastern Canada. A residual chronology of tree-ring width index was developed for each species. The tree-ring width of Q. rubra showed negative and positive correlations with May temperature and June precipitation in the current year, respectively. A. saccharum also showed similar patterns with Q. rubra, i.e., negative and positive correlations with June temperature and precipitation in the current year, respectively. F. grandifolia showed neither positive nor negative correlations with temperature and precipitation. The expressed population signals of tree-ring width chronologies of the three species indicated that climatic factors more greatly influenced the variations in tree-ring widths in the order Q. rubra > A. saccharum > F. grandifolia. Therefore, the radial growth of Q. rubra was most restricted by drought stress in early summer among the three species. Global warming is suggested to affect the radial growth of the three species differently by increasing drought stress at Mont St. Hilaire in eastern Canada.
机译：本研究检测了气候条件对红橡木（栎（Quercus Rubra），糖枫（Acer Saccharum）和美国Beech（Fagus Grandifolia）的北部分配限制在加拿大东部的北部分配限制的影响。为每个物种开发了树环宽度指数的残余年表。 Q. Q.的树木环宽度分别与当年的温度和六月降水有阴性和正相关。 A. SACCRARUM还显示出与Q.Quera，即与当前六月温度和降水的阴性和正相关的类似模式。 F. Grandifolia既不与温度和降水均无负相关。三种物种的树木宽度时间表的表达的人口信号表明，气候因素更大地影响了Q.Rubra> A. Saccharum> F. Grandifolia的顺序中的树木宽度变化。因此，Q. rubra的径向生长受三种初夏的干旱胁迫受到最受限制的。建议通过在加拿大东部的Mont St. Hiilee的干旱压力下增加干旱压力来影响三种物种的径向增长。

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