深度CO2排放和中央阿佩宁山的碳预算由地力学调节
Erica Erlanger1,2, Aaron Bufe1,3, Guillaume Paris2
1GFZ German Research Centre for Geosciences, Potsdam, Germany.
概括
在山上建造建筑.
科学领域:
- 地质化学 地质化学
- 地质地质地质地质地质地
- 气候科学 气候科学
背景情况:
- 临界区域的气候变化对于长期的二氧化碳 (CO2) 吸收至关重要.
- 接近地表的气候模型往往忽略了碳酸融化的地二氧化碳排放.
- 降温和转化可以释放大量的二氧化碳,可能超过吸收.
研究的目的:
- 量化来自气候变化,转化和碳酸融化的无机碳流的平衡.
- 研究地力学在调节无机碳循环中的作用.
- 为了评估地来源的二氧化碳排放与山脉带近地表气候变化的差异.
主要方法:
- 在意大利阿佩宁山脉的热流和地厚度梯度上分析溪水化学.
- 来自气候变化和变态过程的无机碳流量的量化.
- 在不同的地力学条件下 (热流,地厚度) 进行碳流的比较.
主要成果:
- 在高热量流量 (>150 mW m−2) 和薄地 (<25 km) 的地区,地碳排放明显超过近地表流量 (大小的两倍).
- 在地厚 (>40公里) 和热量流量较低 (<30mW m-2) 的地区,气候变化过程主导了碳预算.
- 变态流表现出比气候变化流更大的变化 (一个到两个数量级).
结论:
- 地力学过程,特别是变态化和脱碳,在调节无机碳循环方面发挥着至关重要的作用.
- 构造活动可以显著影响地球地释放的二氧化碳.
- 了解地的碳流对于准确的气候建模和评估山脉建筑对大气CO2的影响至关重要2.
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