# A Review of Regional and Global Gridded Forest Biomass Datasets
## 3 Current Gridded Forest Biomass Maps
### AGB Maps from Other Data Sources
#### 3.5.7 Pan-European Map of Forest Biomass Increment
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Region** & **Base Year** & **Pixel Size** & **Forest Mask** & **Methodology** & **Accuracy/Uncertainty** & **Provider** \\ \hline \multirow{2}{*}{Europe} & \multirow{2}{*}{2000} & \multirow{2}{*}{500 m/10 km} & CORINE Land Cover & Downscaling method (NFI data, & \(\mathrm{R=0.97}\), \\  & & & 2000 map & MODIS data, meteorological & Mean absolute error \(\mathrm{=25\ m^{3}/ha}\) & [PERSON] et al. [70] \\  & & & 2000 map & data, and land cover data) & (for growing stock) & \\ \hline \multirow{2}{*}{Russia} & \multirow{2}{*}{2000} & \multirow{2}{*}{500 m} & GLC2000 and & Random Forest model (field data & \(\mathrm{R^{2}=0.61}\) (variance explained) & [PERSON] et al. [71] \\  & & & MOD12 QI & and MODIS reflectance data) & \\ \hline \multirow{2}{*}{Eurasia} & \multirow{2}{*}{2005–2006} & \multirow{2}{*}{500 m} & Two and three-phase modelling & \multirow{2}{*}{\(\mathrm{R^{2}=0.60}\); \multirow{2}{*}{RMSE = 58.47 Mg/ha}} & \multirow{2}{*}{[PERSON] et al. [85]} \\  & & & & (field data, GLAS data, land & \(\mathrm{R^{2}=0.60}\); \\  & & & cover, ecoregion, and & \multirow{2}{*}{RMSE = 58.47 Mg/ha} & \\  & & & & topographic data) & \\ \hline \multirow{2}{*}{China} & \multirow{2}{*}{2001–2013} & \multirow{2}{*}{1 km} & \multirow{2}{*}{Vegetation map of} & Model tree ensembles approach & \multirow{2}{*}{\(\mathrm{R^{2}=0.46}\); \multirow{2}{*}{RMSE = 22.7 Mg/ha}} & \multirow{2}{*}{[PERSON] et al. [72]} \\  & & & & (field data, MODIS reflectance data, climate data and forest & \(\mathrm{R^{2}=22.7}\) Mg/ha & \\  & & & & type map) & \\ \hline \multirow{2}{*}{China} & \multirow{2}{*}{2004–2008} & \multirow{2}{*}{5.5 km} & MODIS Land Cover & Downscaling approach (field & \multirow{2}{*}{\(\mathrm{R^{2}=0.761}\)} & \multirow{2}{*}{[PERSON] et al. [73]} \\  & & Type product & inventory statistics and & & & \\  & & MCD12 CI & MODIS data) & & & \\ \hline \multirow{2}{*}{China} & \multirow{2}{*}{2000} & \multirow{2}{*}{1 km} & Random forest model (field data, & \multirow{2}{*}{\(\mathrm{R^{2}=0.75}\); \multirow{2}{*}{RMSE = 42.39 Mg/ha}} & \multirow{2}{*}{[PERSON] et al. [98]} \\  & & & & GLAS data, optical imagery, & & \\  & & & climate data, and topographic & & \\  & & & & data) & \\ \hline \multirow{2}{*}{Northeast China} & \multirow{2}{*}{2005} & \multirow{2}{*}{500 m} & MODIS VCF (10\% tree cover) & Random Forests model (field & \(\mathrm{R^{2}=0.82}\); \multirow{2}{*}{RMSE = 32.69 Mg/ha; \multirow{2}{*}{DGIS data}} & \multirow{2}{*}{[PERSON] et al. [97]} \\  & & & & biomass data, GLAS data, and MODIS data) & Bootstrap uncertainty \(\mathrm{=25.80 Mg/ha}\) & \\ \hline \multirow{2}{*}{North America} & \multirow{2}{*}{2005–2006} & \multirow{2}{*}{500 m} & EOSD200 and & Three-phase modelling (field & \multirow{2}{*}{Relative error = 1.9\%} & \multirow{2}{*}{[PERSON] et al. [88]} \\  & & & NLCD2001 & data, and MODIS data) & & \\ \hline \multirow{2}{*}{Canada} & \multirow{2}{*}{2001 and 2011} & \multirow{2}{*}{250 m} & EOSD land cover data & kNN (NFI data, MODIS data, climate and topographic data, and land cover information) & \multirow{2}{*}{Relative error = 69.2} & \multirow{2}{*}{[PERSON] et al. [68]} \\  & & & & and land cover information) & & \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._