Fig. 2: Regional dynamics of atmospheric N deposition from 1980 to 2020.
From: Changing patterns of global nitrogen deposition driven by socio-economic development
a Dynamics in North America. b Dynamics in Western Europe. c Dynamics in Korea and Japan. d Dynamics in China. e Dynamics in Russia. f Dynamics in Western Asia. g Dynamics in South Asia. h Dynamics in Southeast Asia. i Dynamics in South America. The circles are direct observations and their error bars indicate SE (the variation among the monitoring sites). The triangles are results from the random forest models and their error bars indicate SE (variations across three random forest models). Different colors represent different N deposition components. The trend of N deposition is fitted using linear or binomial functions. R2 is the coefficient of determination, ** represents the significance level at P = 0.01, and * represents the significance level at P = 0.05. The bar chart at the bottom of each plot shows the dynamics of the ratio of NHx to NOy deposition in the region. Source data are provided as a Source Data file.
