Table 4.

Mean Annual Total Net Ecosystem Exchange (NEE), GPP, R _eco for the Long‐Term Sites

Fluxes		Region	Forests		Wetlands
		US‐PFa	US‐WCr	US‐Syv	US‐Los	US‐ALQ
NEE (g C m−2 yr−1)	Mean	−3.7	−253	−118	−91	−84
	Min	−170	−478	−271	−162	−124
	Max	163	62.7	109	−9.2	−41
GPP (g C m−2 yr−1)	Mean	878	1,174	1,339	909	1,077
	Min	550	962	1,012	712	990
	Max	1,098	1,552	1,619	1,070	1,223
R eco (g C m−2 yr−1)	Mean	874	920	1,220	818	992
	Min	449	705	818	657	893
	Max	1,191	1,154	1,473	1,058	1,181
Years	n	24	18	13	16	3