Fig. 1: Global cropland area (map based and sample based) and annual cropland NPP. | Nature Food

Fig. 1: Global cropland area (map based and sample based) and annual cropland NPP.

From: Global maps of cropland extent and change show accelerated cropland expansion in the twenty-first century

Fig. 1

Cropland area was mapped for each 4-year interval. Sample analysis was performed only for the first and the last intervals. The MODIS-based annual NPP represents a 4-year average within the cropland map for the corresponding time interval. The error bars for sample-based cropland area estimates represent the 95% CI whereas the error bars for NPP represent 1 s.d. of annual values within the time interval.

Source data

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