Crop-Specific Management History (CMH) Dataset in the Contiguous U.S.
This interactive platform visualizes the crop-specific management history across the contiguous U.S. from 1850 to 2022. Built on the Google Earth Engine (GEE) platform, it allows users to explore detailed patterns and trends in land use and resource management history. The dataset currently includes crop-specific synthetic phosphorus application and cropland area data. Additional datasets on synthetic nitrogen, tillage, and manure applications are coming soon.
GEE Interactive Data Visualization Page
Explore crop-specific phosphorus management trends across the contiguous U.S. using our Google Earth Engine (GEE) platform. Access custom maps, visualize P fertilizer application rates, and analyze historical patterns.
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Updating Log
• 12/01/2024: Publishing state- and county-level crop-specific phosphorus and cropland area data
Interactive GEE LINK
Click below to explore and analyze these datasets on Google Earth Engine (GEE), featuring dynamic maps and historical trends across selected regions.
GEE Tutorial
Learn how to navigate and analyze data using our tutorials:
• Tabular Data Tutorial
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​• Spatial Map Tutorial
Tabular Data
Spatial Map
Data Description
Currently Available Data:
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P-Fer Applications Rate
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Synthetic phosphorus application rate in per treated area
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Unit: g P m-2
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Cropland Area
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Cropland area
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Unit: acre
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P-Fer consumption
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Total synthetic phosphorus content
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Unit: g P
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Coming Soon:
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N-Fer Applications Rate
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Synthetic nitrogen application rate (treated area)
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Unit: g N m-2
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N-Manure Applications Rate
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Manure nitrogen application rate (treated area)
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Unit: g N m-2
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P-Manure Applications Rate
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Manure phosphorus application rate (treated area)
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Unit: g P m-2
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Spatial Coverage
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Resolution: 4 km × 4 km
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Geography: Contiguous U.S. (48 states, 3,002 counties)
Temporal Coverage:
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County-level data: 1930–2022
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State-level data: 1850–2022
Crops Included:
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corn
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soybean
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winter wheat
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spring wheat
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durum wheat
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cotton
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sorghum
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rice
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barley
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cropland pasture
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other Crops
Citation & Related Publications
Please cite the following publications when using this dataset:
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• Ye, S., Cao, P., and 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 Syst. Sci. Data, 16, 3453–3470. DOI:10.5194/essd-16-3453-2024.
• Cao, P., Yi, B., Bilotto, F., Gonzalez Fischer, C., Herrero, M., and Lu, C. (2024): Crop-specific management history of phosphorus fertilizer input (CMH-P) in the croplands of the United States: reconciliation of top-down and bottom-up data sources, Earth Syst. Sci. Data, 16, 4557–4572. DOI:10.5194/essd-16-4557-2024.