Fig. 3: The increased tree densities and carbon sequestration due to afforestation and densification.
From: Carbon sequestration potential of tree planting in China
a1–a4 The relationship between the TGS score (x axis) and the tree density (y axis) for deciduous broadleaf forest, deciduous needleleaf forest, evergreen broadleaf forest, and evergreen needleleaf forest, respectively. The three curves represent the changes of tree densities with the scores at 25%, 50%, and 75% quantile levels. The bar marks the score range of 0.90-0.91, and (b)–(d) are cross-sectional views of that portion of the data. b1–b4 The cumulative distribution function of tree densities in the 0.90–0.91 score bin for the four forest types. c1–c4 The relationship between the tree density and aboveground forest biomass carbon (AGFBC), the error bars indicate the range of biomass carbon in the same tree number interval (outliers have been removed). d1–d4 The relationship between the tree density and belowground forest biomass carbon (BGFBC). Source data are provided as a Source Data file.
