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微气候的温度效应在森林生态系统的尺度上传播

Kristin H Braziunas^1,2, Werner Rammer¹, Pieter De Frenne³

¹Ecosystem Dynamics and Forest Management Group, School of Life Sciences, Technical University of Munich, 85354 Freising, Germany.

Landscape ecology

|February 6, 2025

概括

森林微气候缓冲对长期森林动态和生态系统过程产生重大影响. 在模型中包含温度缓冲可以增强碳储存并改变物种组成,这表明其在景观规模上的重要性.

科学领域:

森林生态森林生态
气候建模气候模型
生态系统动力学生态系统动力学

背景情况:

森林树冠极大地影响树冠下环境,影响生物多样性和生态系统功能.
经验性微气候研究往往局部规模和短时间,阻碍了对森林长期动态的理解.

研究的目的:

开发和实施首个集微气候温度缓冲的动态森林景观模型.
研究微气候温度缓冲对模拟森林动态和生态系统结果在景观尺度的影响.

主要方法:

调整了基于iLand个人的森林景观模型,以整合微气候对分解,树皮甲虫发育和苗木建立的温度影响.
在历史气候和干扰制度下的欧洲山地景观中,模拟了带有和没有微气候缓冲的森林动态.

主要成果:

微气候缓冲效应从地方到景观水平扩展,在1000年内平均总碳增加2%,累计生态系统净生产率增加21%.
包括缓冲导致挪威杉增加了9%,欧洲的基底面积减少了12%.
当地的树皮甲虫发育率下降了16%,导致景观规模的树皮甲虫引起的死亡率下降了45%.

结论:

微气候温度缓冲非线性尺度从站立到景观,并在千年时间尺度.
动态模拟模型对于在空间和时间上升规模的微气候效应至关重要.
微气候缓冲明显改变了景观尺度上的森林动态.

关键词:

气候调节气候调节气候调节欧洲阿尔卑斯山欧洲阿尔卑斯山开发森林景观模型的森林景观模型微观气候是一种微观气候.基于过程的模型基于过程的模型.温带山区森林温带山区森林

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