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Fig. 5. Change in soil carbon after afforestation: comparison of our model equation to data for pine forest types in the Southeast and South-Central regions of the United States and to selected equations from the literature. Published data are shown as points and models are shown as lines; data are from Garten (2002), Post and Kwon (2000), Van Lear et al. (1995), Houghton and Hackler (2000, 2001), and West et al. (2004). Data from Post and Kwon (2000) are a published literature review covering many studies, other citations are data not included in that review.
