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生态系统的反限制了天天气变化的影响在陆地-大气碳交换的影响

Edward B Rastetter¹, Kevin L Griffin^2,3,4, Bonnie L Kwiatkowski¹

¹The Ecosystems Center, Marine Biological Lab, Woods Hole, Massachusetts, USA.

Global change biology

|August 30, 2023

概括

在北极原生态系统中,天气变化的增加可能会导致更大的碳损失. 相反,减少变性会增加碳捕获,影响生态系统功能,与长期气候趋势相比.

科学领域:

生态生态学生态生态学
气候科学气候科学
生物地质化学生物地质化学

背景情况:

生态系统对环境变化的反应受到内部相互作用和反的影响.
虽然气候趋势和极端事件得到了充分的研究,但改变天气变化对生态系统的影响仍然不太清楚.
环境变化极大地影响生态功能,通常以非线性方式.

研究的目的:

调查日常天气变化的变化,独立于长期气候手段,如何影响生态系统的约束.
评估改变天气变异对生态系统层面过程的相互作用影响.
模拟气候变化对北极原生物地质化学的影响.

主要方法:

利用随机模拟生成每日温度,降水和光线数据.
驾驶了一个生物地球化学模型,模拟了每天的天气变化.
分析了碳,和储量的变化以及北极原的循环速率.

主要成果:

变化的天气变化对生态系统的碳,和储量和循环速度产生了重大影响.
每天天气变化的增加导致土地对大气的碳损失增加.
降低天气变化导致陆地增强碳捕获.
生态系统反调节或逆转了气候变化的直接过程反应,例如呼吸.

结论:

日常的天气变化是影响生态系统功能的关键因素,其影响与长期气候趋势相当.
天气变化的变化会改变生态系统的碳净平衡.
了解生态系统对天气变化的反应对于预测气候变化的生态后果至关重要.

关键词:

在C-N-P相互作用中.詹森的不等式碳平衡中的碳平衡.气候变化气候变化气候变化生态系统生物地球化学生态系统生物地球化学生态系统的反,生态系统的反天气的变化天气的变化.

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