长期变异现象学揭示了气候变化下的混合森林中两种树种的不同生长反应
David Almagro1,2, Darío Martin-Benito1, Sergio Rossi3
1Forest Research Center INIA-CSIC, Institute of Forest Sciences (ICIFOR), Madrid, Spain.
Global change biology
|September 22, 2025
概括
气候变化影响着森林生长. 温暖的冬季提前松树变性再生,但干旱缩短了松树和树的木材形成时间,影响了森林动态.
科学领域:
- 森林生态 森林生态
- 气候变化生物学 气候变化生物学
- 植物生理学 植物生理学
背景情况:
- 在气候变化压力下,森林的功能动态是不确定的.
- 了解树木物种对气候变化的反应对于森林管理至关重要.
- 长期的树木生成数据提供了对木材形成和树木现象学的见解.
研究的目的:
- 为了在11年内监测同时出现的树种中的木材形成和变形现象学.
- 评估气候对形和体发育阶段的影响.
- 为了比较物种特定的现象性可塑性,以应对气候变化.
主要方法:
- 松树 (Pinus sylvestris) 和树 (Quercus pyrenaica) 的长期树木生成数据集 (2012-2022年).
- 分析不同时间窗口的气候共变量,影响变态现象学.
- 监测木材形成,变形反应和扩大阶段.
主要成果:
- 冬季后期的温度强烈推进了松树变节的活性 (5.5天/°C).
- 树变异性反应的开始受土壤水和温度的影响;温度的影响较弱.
- 温暖的冬季促进了松树的重新激活,但干旱引起的停止缩短了这两种物种的木材形成时间.
结论:
- 对气候变化的物种特异性现象性可塑性进行了强有力的评估.
- 温暖的冬季有利于松树变树的恢复,但干旱会影响整体生长时间.
- 了解树木生成反应是预测混合森林动态的关键,随着干旱耐受性优势的增加.
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