Measuring fluxes of trace gases and energy between ecosystems and the atmosphere - the state and future of the eddy covariance method
Measuring fluxes of trace gases and energy between ecosystems and the atmosphere - the state and future of the eddy covariance method
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DOI：
10.1111/gcb.12649
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发表时间：
2014-12-01
影响因子：
11.6
通讯作者：
Baldocchi, Dennis
中科院分区：
文献类型：
--
作者：
Baldocchi, Dennis
过去 25 年来，涡流协方差通量法在测量生态系统和大气之间微量气体和能量通量方面的应用呈爆炸式增长。本意见文件提供了关于涡度协方差方法的贡献和未来机遇的观点。首先，本文讨论了该方法相对于其他用于测量生态系统和大气之间微量气体交换的方法的优缺点。其次，它讨论了涡度协方差方法的使用是如何发展和演变的。如今，全球有 400 多个通量测量站点正在运行，数十个站点的时间序列持续时间超过十年。塔址网络现在使科学家能够提出与气候和生态梯度、干扰、土地利用变化和管理相关的科学问题。本文最后讨论了通量测量领域的发展方向。讨论的主题包括开放获取数据共享和数据挖掘在大数据新时代的作用，以及测量各种痕量气体（如挥发性有机碳化合物、甲烷和一氧化二氮以及气溶胶）的新传感器可能产生的机会。
The application of the eddy covariance flux method to measure fluxes of trace gas and energy between ecosystems and the atmosphere has exploded over the past 25years. This opinion paper provides a perspective on the contributions and future opportunities of the eddy covariance method. First, the paper discusses the pros and cons of this method relative to other methods used to measure the exchange of trace gases between ecosystems and the atmosphere. Second, it discusses how the use of eddy covariance method has grown and evolved. Today, more than 400 flux measurement sites are operating world-wide and the duration of the time series exceed a decade at dozens of sites. Networks of tower sites now enable scientists to ask scientific questions related to climatic and ecological gradients, disturbance, changes in land use, and management. The paper ends with discussions on where the field of flux measurement is heading. Topics discussed include role of open access data sharing and data mining, in this new era of big data, and opportunities new sensors that measure a variety of trace gases, like volatile organic carbon compounds, methane and nitrous oxide, and aerosols, may yield.