对温带内陆湿地作为自然气候解决方案的新视角,根据不同的二氧化碳等效指标
Shizhou Ma1, Irena F Creed2, Pascal Badiou3
1School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK Canada.
概括
湿地捕获二氧化碳 (CO2),但释放甲 (CH4). 使用GWP*指标,完整的湿地提供净冷却,使得保护成为成本有效的气候解决方案. 湿地恢复也随着时间的推移提供了气候效益.
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:
- 湿地被认为是气候解决方案,因为它们会封存二氧化碳并排放CH4.
- 评估净气候影响需要比较温室气体 (GHG) 排放.
研究的目的:
- 模拟湿地辐射强迫和500年的温度变化.
- 为了评估不同的二氧化碳等价值 (CO2-eq.) 评估湿地净温室气体流量的指标.
主要方法:
- 利用基于过程的温室气体扰动模型与实证碳流量数据.
- 与三个CO2-e.q.进行比较. 度量:GWP,SGWP和GWP*与模型衍生的温度配置文件相比.
主要成果:
- 湿地温室气体排放的GWP*最准确估计的平均温度概况.
- 完整的湿地作为净CO2-e.q.的功能. 碳汇,提供冷却效果.
- 湿地保护提供了立即的气候效益;恢复提供了短期和长期的冷却.
结论:
- 优先考虑完整的湿地保护是一个具有成本效益的战略,具有立即的气候效益,符合"巴黎协定"的目标.
- 湿地恢复是一个有效的短期和长期的自然气候解决方案,具有共同的利益.
- GWP*指标对于准确评估湿地的净气候影响至关重要.
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