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准确测定地表碳通量对评价陆地生态系统碳源、碳汇的区域分布、寻找未知碳汇及预报未来的气候变化趋势意义重大,涡度相关法以其独特的优势成为研究碳通量的标准方法。文中简要回顾了涡度相关技术的发展历程和基本原理,概述了其优缺点,着重总结了碳通量变化规律、环境响应机理及碳收支和测量尺度提升在陆地生态系统碳通量方面的研究成果,并从避免误差、数据处理、模型的应用及数据的空间拓展等方面探讨了今后的研究重点。
Accurate determination of surface carbon flux is of great significance in assessing the regional distribution of carbon sources and carbon sequestration in terrestrial ecosystems, finding unknown carbon sinks and forecasting future climate change trends. The eddy covariance method, with its unique advantages, becomes the standard for carbon flux studies method. In this paper, the development process and basic principle of eddy covariance technique are briefly reviewed. The advantages and disadvantages of eddy covariance technique are briefly summarized. The variation law of carbon flux, the mechanism of environmental response and carbon budget of terrestrial ecosystem are improved Research results, and from the avoidance of errors, data processing, the application of the model and the data space to explore the future research focus.