Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
北京山区两种栎树径向生长对气候变化响应的时间 尺度差异研究. |
| Alternate Title: |
Time-scale differences in radial growth of two oak species in response to climate change in the Beijing mountainous region. |
| Συγγραφείς: |
史亚博1 shiyabo@bttc.edu.cn, 高文强2 gwq9975@ifrit.ac.cn, 高东丽3, 杨绍欢4, 马泽宇5, 张雪峰1 |
| Πηγή: |
Ecological Science. May2026, Vol. 45 Issue 3, p130-138. 9p. |
| Θεματικοί όροι: |
*Tree-rings, *Climate change, *Oak, *Time measurements |
| Γεωγραφικοί όροι: |
Beijing (China) |
| Abstract (English): |
Trees exhibit sensitivity and adaptability to climate dynamics across varying temporal scales. Quercus mongolica and Q. variabilis from the mountainous regions of Beijing were selected as research subjects. The primary objective was to elucidate the impact of temporal scales differences on the relationship between the radial growth of different tree species and climatic variables, which had significant implications for understanding tree growth responses to climate change. After collecting annual ring samples of Q. mongolica and Q. variabilis, the radial growth on the time scales of 1, 3, 5 and 10 years was measured. Pearson correlation analysis was employed to quantitatively evaluate, at each time scale, the response of radial growth to climatic factors, including maximum, minimum, and mean temperatures, as well as precipitation, across spring, summer, autumn, winter, growing season and physiological year. The results showed that (1) radial growth of both oak species was positively correlated with maximum, minimum, and mean temperatures across all seasonal categories, while negatively correlated with precipitation in summer, winter, growing season, and physiological year. (2) The strength of correlation between radial growth and climatic factors increased with longer growth intervals. (3) The relationship between radial growth of Q. mongolica and climate factors was more pronounced compared to that of Q. variabilis. These findings demonstrate that the strength of the relationship between tree growth and climate factors varies with temporal scale, with longer time scales providing a more accurate reflection of the influence of climate factors on tree growth. Furthermore, interspecific differences in the relationship between radial growth and climate factors were observed, with the radial growth of Q. mongolica showing greater sensitivity to climate changes. This research offers valuable insights into the mechanisms by which tree populations adapt to and respond to climate change, and offers a solid scientific basis for future forest management and ecological conservation efforts. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
树木对不同时间尺度气候动态变化具有敏感性和适应性。以北京山区的蒙古栎 (Quercus mongolica) 和栓皮栎 ( Q. variabilis) 为研究对象, 旨在阐明时间尺度差异对不同树种径向生长与气候因子之间关系的影响, 这对于理解树木 生长对气候变化的响应具有重要意义。通过采集蒙古栎和栓皮栎年轮样本, 测量其径向生长在 1, 3, 5, 10 年时间尺 度下的径向生长量。通过 Pearson 相关分析, 定量评估各时间尺度下树木径向生长与气候因子的响应关系, 气候指标包 括春季, 夏季, 秋季, 冬季, 生长季和生理年的最高温, 最低温, 平均温度以及降水量。结果发现: (1) 两种栎树径向 生长均与各季节类型的最高温, 最低温以及平均温呈正相关关系, 与夏季, 冬季, 生长季和生理年的降水量均呈负相 关关系; (2) 随着生长间隔的增加, 径向生长与气候因子之间的相关性逐渐增强; (3) 蒙古栎的径向生长与气候因子的关 系比栓皮栎更为密切。树木生长与气候因子之间关系的强度随时间尺度的不同而变化, 较长的时间尺度能更准确地反 映气候对树木生长的影响。此外, 树种间径向生长与气候因子的关系存在差异, 蒙古栎的径向生长对气候变化更为敏 感。本研究为理解树木种群如何适应和响应气候变化提供有价值的见解, 并为未来的森林管理实践和生态保护工作提 供坚实的科学基础. [ABSTRACT FROM AUTHOR] |
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