title: Carbon budget of the southeastern u.s. Biota: analysis of historical change in trend from source to sink.
abstract: Documentation of settlement patterns and deforestation in the southeastern United States allows evaluation of regional carbon dynamics since A.D. 1750. From 1750 to 1950, the Southeast was a net source for carbon at an average rate of 0.13 gigaton per year. Only in the past 20 to 30 years has increased productivity of commercial forests resulted in a sink for atmospheric carbon dioxide of 0.07 gigaton per year.
authors.forename: H R
authors.initials: HR
authors.lastname: Delcourt
authors.forename: W F
authors.initials: WF
authors.lastname: Harris