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Table 5 t test and Pearson statistics of global fire emissions in the 2001–2016 interval, for GFED4s and new FAOSTAT estimates as well as for the new and previous FAOSTAT estimates (in Tg CO2eq year−1). The t test indicates that the averages of the two samples being tested are statistically similar when t-stat is comprised between ± t critical

From: New estimates of greenhouse gas emissions from biomass burning and peat fires using MODIS Collection 6 burned areas

  GFED4s—FAOSTAT C6 FAOSTAT C6—FAOSTAT C5.1
  t test Pearson t test Pearson
  t critical two tail t stat p ρ t-stat p ρ
Two tail Two tail
Savanna, grassland, and shrubland 2.064 3.02 0.005 0.735 4 0 0.827
Deforestation and forest degradation 2.06 1.42 0.17 0.893 1.9 0.07 0.919
Boreal and temperate forest 2.07 1.9 0.07 0.881 4.85 0 0.923
Peatland 2.04 − 13.71 0 0.793 4.61 0 0.948
All sources combined 2.042 − 2 0.054 0.666 7.21 0 0.979