agriculture Archives - Geography Realm

Von Thünen Model of Agricultural Land Use

December 16, 2020 by Mark Altaweel

Johann Heinrich Von Thünen created perhaps the first known spatial economic model on land rent using observations he had experienced.

Three moments in a tumultuous year for farming north of St. Louis, MO, as seen in NASA-USGS Landsat 8 data. On the left is May 7, 2019, as heavy rains delayed planting for many farms. Sept 12, 2019, in the middle, shows bright green signifying growing vegetation, although with a fair amount of brown, bare fields. On the right, Oct. 14, 2019, the light brown indicates harvested fields while darker brown are fields that have not been seeded or fallow all summer. Credits: NASA

Monitoring Crop Production Via Satellite

December 6, 2020December 28, 2019 by Elizabeth Borneman

To cope with ever-changing agricultural needs and conditions, the USDA’s National Agricultural Statistics Service (or NASS) uses data from Landsat to monitor crops in the contiguous United States.

Geo Quiz: Name the Human Activity Visible from Space

November 14, 2020January 13, 2017 by Caitlin Dempsey

This geography quiz features ten satellite images each showing an anthropogenic activity. Can you figure out what the human activity shown on each image is?