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  • Crystal Lu

Gridded time-series data of the US cropland distribution from 1850 to 2016

Updated: Sep 24, 2019



We reconstructed the cropland density maps by harmonizing multiple sources of inventory data and high-resolution satellite images. The time-series gridded data depicts the distribution and percentage of cultivated land each year (excluding summer idle/fallow, cropland pasture). The reconstructed annual cropland percentage maps were at 1 km×1 km resolution covering the conterminous U.S. spanning from 1850 to 2016.


Citation:

Yu, Z., and C. Lu. 2018. Historical cropland expansion and abandonment in the continental U.S. during 1850 to 2016. Global Ecology and Biogeography https://doi.org/10.1111/geb.12697.


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Entity and Attribute Information

  • Entity type: cropland density maps

  • Entity type definition: distribution and percentage of cultivated land each year (excluding summer idle/fallow, cropland pasture) covering conterminous U.S.

Domain

  • Grid dimension: 4614 columns, 2895 rows

  • Grid spatial resolution: 1km × 1km

  • Top Left gridcell: 45.5 N, 96.0 W

Spatial reference information

  • Projection: Albers_Conical_Equal_Area

  • Datum: North America 1983

  • Spheroid: GRS_1980, 6378137.0, 298.257222101

  • Central Meridian: -96.0

  • Latitude of origin, 23.0

  • Units: Meters

Data format

  • Geo tiff Grid image

Time Period Information

  • Beginning Date: 1850

  • Ending Date: 2016

  • Time step: yearly

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Address

Department of EEOB
2200 Osborn Dr.
Room 251 Bessey
Iowa State University
Ames, IA 50011-1020 USA

Contact

Chaoqun (Crystal) Lu

Office: 241 Bessey Hall
Phone: (515) 294-7443
Fax: (515) 294-1337
E-mail: clu@iastate.edu