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在四个温带的东南欧泥炭地最近的碳封存动态使用210Pb约会

R-Cs Begy¹, C-F Savin², A Ruskál³

¹Faculty of Environmental Sciences and Engineering, "Babes-Bolyai" University, Cluj-Napoca, 400084, Romania; Interdisciplinary Research Institute on Bio-Nano-Sciences, "Babes-Bolyai" University, Cluj-Napoca, 400271, Romania.

Journal of environmental radioactivity

|May 28, 2023

概括

由于气候变化,泥炭地正在增强碳的吸收和储存,在过去的两个世纪中显示了增加的积累率. 干旱事件可以暂时减少泥炭的生长.

科学领域:

环境科学环境科学
气候科学气候科学
生态生态学生态生态学

背景情况:

人为气候变化和二氧化碳水平的上升影响了泥炭地碳动态.
泥炭地表现出可变的增长率和碳积累的整体上升趋势.
了解泥炭地最近的碳捕获对于减缓气候变化至关重要.

研究的目的:

为了调查东南欧洲斯法格纳木占主导地位的泥炭地最近的碳捕集动态.
分析过去两百年来泥炭特性和碳积累的演变.
评估气候变化和干旱事件对泥炭地碳储存的影响.

主要方法:

使用高分辨率的210Pb时间表来测定泥炭形状的年龄.
采用137Cs标记物来验证年代和研究泥炭特性.
分析了罗马尼亚四个泥炭地的碳积累率和储存情况.

主要成果:

表面碳积累率差异很大 (9.5437.5 g C m-2 yr-1),平均值为144 g C m-2 yr-1.
从1950年到现在,碳积累率增加了18.25%.
平均碳储存量为17.6公斤C m-2;干旱事件与泥炭生长减少相关.

结论:

东南欧的泥炭地显示了当代增强的碳吸收和储存.
气候变化正在推动这些泥炭地增加碳封存.
由137Cs验证的210Pb约会是研究最近的泥炭地碳动态的一个可靠方法.

关键词:

(210) Pb的约会时间汽车汽车汽车汽车碳库存碳库存碳库存碳库存增长率的增长速度是什么皮特兰德地区的泥炭地在 RERCA 找 RERCA

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