NEE was negative today, meaning the forest absorbed more CO than it released. 今天的 NEE 为负,意味着森林吸收的二氧化碳多于释放的。
Using eddy covariance data, the researchers estimated annual net ecosystem exchange and linked interannual variability to drought intensity. 研究人员利用涡度协方差数据估算年尺度的净生态系统交换量,并将年际波动与干旱强度联系起来。
Baldocchi, D. (2003).Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: past, present and future.Global Change Biology.
Chapin, F. S., Matson, P. A., & Vitousek, P. M. *Principles of Terrestrial Ecosystem Ecology.*(教材/专著中常用 NEE 讨论陆地生态系统碳交换)