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Data Products


CropAT-US: Annual time-series 1-km maps of crop area and types in the US during 1850-2021
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,...
Crystal Lu
Nov 5, 20241 min read
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Historical trends in phosphorus fertilizer use in the US: 1850 to 2021
Figure. Time series of P fertilizer consumption and average application rates for all crops (a) and P fertilizer application rates (b)...
Crystal Lu
Nov 5, 20242 min read
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County-level crop nitrogen budget history in the US during 1970-2019
Figure. Nitrogen budget aggregated from the eight crops in the U.S. from 1970 to 2019. N inputs include manure (Nman), atmospheric...
Crystal Lu
Jul 20, 20231 min read
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Data of Global nitrogen and phosphorus fertilizer use in the past half century
Spatial distribution and changes of N/P ratio in synthetic fertilizer application across the world in the years of 1961, 1980, 1990, and...
Crystal Lu
Nov 2, 20172 min read
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Gridded time-series data of the US cropland distribution from 1850 to 2016
We reconstructed the cropland density maps by harmonizing multiple sources of inventory data and high-resolution satellite images. The...
Crystal Lu
Nov 2, 20171 min read
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Time series data of nitrogen fertilizer use in the US from 1850 to 2015
Agricultural nitrogen fertilizer use rate increased by 33 folds in the continental US during 1940-2015, with the hot-spots shifting from...
Crystal Lu
Nov 2, 20171 min read
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