泥炭地温室气体平衡的全球观测差距:需要和障碍
Junbin Zhao1, Simon Weldon1, Alexandra Barthelmes2
1Department of Biogeochemistry and Soil Quality, Division of Environment and Natural Resources, Norwegian Institute of Bioeconomy Research, Ås, Norway.
概括
泥炭区的温室气体 (GHG) 排放是气候变化的主要驱动因素. 迫切需要更多来自不同泥炭地的二氧化碳 (CO2),甲 (CH4) 和氧化 (N2O) 的全球数据,特别是在非洲和拉丁美洲.
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:
- 泥炭地是温室气体 (GHG) 排放的重要来源,因人类土地使用而影响全球气候变化.
- 准确估计和预测温室气体排放需要对各种泥炭地类型进行全面的全球观测.
研究的目的:
- 综合已发表的泥炭地研究与现场温室气体流量测量.
- 发现全球温室气体观测现有的差距.
- 为改善泥炭地温室气体监测提出未来研究方向.
主要方法:
- 全球综合公布的泥炭地研究,其中包括现场温室气体流量测量.
- 分析现有数据以确定地理,类型和气体 (CO2,CH4,N2O) 观测差距.
- 测量技术的审查,包括的共变性和自动/手动室.
主要成果:
- 目前的温室气体流量观测存在重大差距,特别是关于泥炭地类型,地理区域 (非洲,拉丁美洲,加勒比海) 和氧化物 (N2O) 等特定的温室气体.
- 虽然二氧化碳和CH4测量更为广泛,但N2O研究很少,特别是在自然泥炭地生态系统中.
- 推用于长期和高分辨率监测的埃迪协变和自动化室,手动室对于偏远地区至关重要.
结论:
- 在代表性不足的泥炭地地区扩大温室气体监测和N2O排放非常需要.
- 长期监测使用自动化室的旋转共变率和图片规模数据对于强大的泥炭地温室气体研究至关重要.
- 未来的研究应该集中在标准化的测量方案 (每月,每年持续时间,复制,环境变量) 和有效的泥炭地恢复战略上.
关键词:
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