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Table 2 Main characteristics of the Amazon forest AGB density maps

From: Evaluating spatial coverage of data on the aboveground biomass in undisturbed forests in the Brazilian Amazon

Map Scale Spatial resolution Temporal scale (years) Field forest plots/source Study area plots/sampled area (ha) Remote sensing products/other inputs Model
Saatchi et al. [31] Amazon Basin 1 km 2000–2004 544/many sources ~ 361/~ 1633d MODIS (NDVI, LAI, % tree cover), JERS-1 radar, SRTM/vegetation map, climate data (WorldClim) Biomass classification approach
Nogueira et al. [32] Brazilian Amazon 1 km (landscape level) Only 1976 2879/RadamBrasil and literature 2879/2879 No/vegetation map [40] None
MCT [15] Brazilian Amazon 1 km (landscape level) 1973–1983a 1710c/RadamBrasil and literature 1682/1682 No/vegetation [19], soils [41] None
Saatchi et al. [18] Pantropical 1 km 2000 4079b (493 for calibration)/many sources ~ 707/~ 1770d MODIS (NDVI, LAI, % tree cover), LiDAR from GLAS/forest height map MaxEnt
Baccini et al. [33] Pantropical 500 m 2007–2008 283b/measured No data MODIS, LiDAR from GLAS, SRTM RandomForest
Mitchard et al. [22] Amazon Basin 500 m 1960–2013a 413/RAINFOR and TEAM 105/405 No/regional map based on geography and substrate origin Kriging, inverse distance kernel
Nogueira et al. [34] Brazilian Amazon 1 km (landscape level) 1970a 2317c/RadamBrasil and literature 2373/2317 No/vegetation map [40] None
Avitabile et al. [35] Pantropical 1 km 2000–2013a 648/RAINFOR, TEAM and sustainable landscapes ~500/No data No/high-resolution AGB maps Fusion model
MCT [6] Brazilian Amazon 1 km (landscape level) 1973–1983a 1682 plots/RadamBrasil 1682/1682 No/vegetation [19], soils [41] Inverse distance weighting
  1. RAINFOR Amazon forest inventory network, TEAM tropical ecology, assessment and monitoring, MODIS moderate resolution imaging spectroradiometer, NDVI normalized difference vegetation index, LAI leaf area index, GLAS geoscience laser altimeter system, LiDAR light detection and ranging, SRTM shuttle radar topography mission, JERS-1 Japanese earth resources satellite 1
  2. aAGB field measurements
  3. bWe did not have access to the locations of the plots
  4. cIn the case of the RadamBrasil plots, we had the locations of only 1682 plots
  5. dThe total area of the plots was estimated because the plot had different sizes
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