Figure. The spatial patterns of cropland percentage (a–d) and dominant crop type (e–h) at a 1 km × 1km resolution in 1850, 1900, 1950, and 2021. The color bar of “Percentage” indicates the percentage of planting area to the grid area. “Others” represents the remaining crop types.
By integrating multi-source cross-scale inventories and satellite-based datasets, we reconstructed the annual crop density and crop type map (excluding summer idle/fallow, cropland pasture) in the contiguous US at 1km×1km resolution from 1850 to 2021. The annual crop density map depicts the distribution and fraction of cultivated land, while the crop type map displays the corresponding crop type. The developed datasets fill the data gap in lacking of crop type extent and type maps, which can support the environmental assessment and socioeconomic analysis related to agricultural activities.
Citation: Ye, S., Cao, P., Lu C. 2024. Annual time-series 1-km maps of crop area and types in the conterminous US (CropAT-US): Cropping diversity changes during 1850-2021. Earth System Science Data, 16(7), 3453-3470. https://doi.org/10.5194/essd-16-3453-2024
Annual area of major crop types and total US cropland area from 1850 to 2021.
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