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首页> 外文期刊>Climatic Change >Climate-growth relationships of subalpine fir (Abies fargesif) across the altitudinal range in the Shennongjia Mountains, central China
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Climate-growth relationships of subalpine fir (Abies fargesif) across the altitudinal range in the Shennongjia Mountains, central China

机译：中国中部神农架山海拔范围内亚高山冷杉（Abies fargesif）的气候-生长关系

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摘要

Dendroecological techniques were employed to explore the growth response of subalpine fir (Abies fargesii) to climatic conditions across its altitudinal range in both the north and south aspects in the Shennongjia Mountains, central China. Correlationfunction analyses indicated that temperatures in current summer were significantly negatively correlated with fir radial growth at the lower limits, while temperatures in previous autumn and in current spring showed significantly positive correlations with fir radial growth at the mid-and high-elevations in both aspects. Radial growth of the subalpine fir was significantly and positively influenced by precipitation in previous autumn and in current spring at the lower elevations and by precipitation incurrent spring at the mid-elevations, while precipitation had no significant effects on its radial growth at the upper elevations. Moving correlation functions showed that temperatures in early spring of the current year (i.e., February-April) had a relatively stable effect on tree growth over time at the mid- and upper-elevations in both aspects. Thus, the growth of the subalpine fir responded differently to climatic conditions along the altitudinal gradient, showing that the importance of temperatures for the fir radial growth increased while the importance of precipitation decreased with increasing altitude in both aspects in the Shennongjia Mountains, central China.
机译：在中国中部神农架山脉的北部和南部，采用树状生态学技术探索了亚高山冷杉（Abies fargesii）对海拔范围内气候条件的生长响应。相关函数分析表明，当前夏季的温度与下限处的杉木径向生长呈显着负相关，而先前秋季和当前春季的温度在两个方面均与中高海拔处的杉木径向生长呈显着正相关。亚高山冷杉的径向生长受到较低秋季的先前秋季和当前春季的降水以及中海拔较高的春季的降水的显着正影响，而较高海拔地区的降水对其径向生长没有显着影响。移动相关函数表明，当年初春（即2月至4月）的温度在两个方面的中高海拔处随时间变化对树木生长的影响相对稳定。因此，在中国中部神农架山区，高山冷杉的生长沿海拔梯度对气候条件的反应不同，这表明温度对冷杉径向生长的重要性增加，而降水的重要性则随着海拔的升高而降低。

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