Extended Data Fig. 4: The weighted basal area effects (a-d) and the total basal area impact (e-h due to 2017–2019 average N and S deposition.
From: Sensitive tree species remain at risk despite improved air quality benefits to US forests
The basal area weighted effect (%, BAP) due to 2017–2019 average N or S deposition in each 250-m grid cell for N-influenced growth (a), N-influenced survival (b), S-influenced growth (c), and S-influenced survival rates (d). The total basal area impact using BAT (m2 ha-1) during the same time period are also shown for N-influenced growth (e), N-influenced survival (f), S-influenced growth (g), and S-influenced survival rates (h). State boundaries generated by the US Census Bureau62. Species’ surfaces modified from ref. 42.
