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. 2008 Jan 9;105(2):818–823. doi: 10.1073/pnas.0703015105

Fig. 1.

Fig. 1.

Trends in Natural Forest area 1980–2005 in 90 tropical countries (106 ha) from data in Forest Resources Assessments (FRAs) 1990, 2000, and 2005, with estimates for 76 countries from FRA 1980 and its 1982 revision. (Sources: refs. 9–13.)