Fig. 2: Spatial distribution of the estimated tree growth suitability (TGS) scores and their quantitative relationship with the tree densities.
From: Carbon sequestration potential of tree planting in China
a The spatial pattern of the tree growth suitability scores at a resolution of 1 km in China and the distribution of forest growth validation sites. b Distribution of TGS scores for different categories of forest sites, with diamonds representing their overall classification accuracy, including forest parks, natural forests, and plantation forests. “All” denotes the union of all three categories. c The relationship between TGS (x axis) and tree densities (y axis) at the pixel scale52. d The relationships similar to (c), but for deciduous broadleaf forest, deciduous needleleaf forest, evergreen broadleaf forest, and evergreen needleleaf forest, respectively. Source data are provided as a Source Data file.
