Figure 5: Cropland validation campaign and worldwide spatial distribution of cropland.
From: A global reference database of crowdsourced cropland data collected using the Geo-Wiki platform
The (a) presents cropland data collected during the cropland validation campaign, showing the mean cropland percentage per location and on the (b) the IIASA-IFPRI hybrid cropland map is shown for comparison. The third (c) shows the number of validations at each location during the campaign.
