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Study maps the spatio-temporal evolution of irrigation in the Coastal Plain of Georgia

Photo of The increase in center pivot irrigation systems from 1976 (left) to 2013 (right). Over the 38-year period there was a 4,500 percent increase in center pivot irrigation systems that was accompanied by an approximate 2,000 percent increase in total acres irrigated. The increase in center pivot irrigation systems from 1976 (left) to 2013 (right). Over the 38-year period there was a 4,500 percent increase in center pivot irrigation systems that was accompanied by an approximate 2,000 percent increase in total acres irrigated. Snapshot : A team of scientists from the Forest Service and University of Georgia conduct a manual mapping analysis of the spatial and temporal change in center-pivot irrigation in the Coastal Plain of Georgia.. The study maps the progress in acres irrigated in southern Georgia from 1976 to 2013 using remote sensing and Geographic Information Systems applications.

Principal Investigators(s) :
Williams, Marcus 
Research Location : Georgia
Research Station : Southern Research Station (SRS)
Year : 2017
Highlight ID : 1335

Summary

This study maps the spatial and temporal evolution of acres irrigated in the Coastal Plain of Georgia over a 38-year period. The goal of this analysis is to create a time-series of irrigated areas in the Coastal Plain of Georgia at a sub-county level. From 1976 through 2013, Landsat images were obtained and sampled at four year intervals to manually detect Center-Pivot irrigation (CPI) systems in the analysis region. During the 38-year analysis period there was a 4,500 percent increase in CPI systems detected that corresponded to an approximate 2,000 percent increase in total acreage. The bulk of the total acreage irrigated is contained in southwest Georgia, as seven counties in the region contained 38 percent of the total acreage irrigated in 2013. There was substantial growth throughout the entire Coastal Plain Region, but southwest Georgia was identified as the most heavily irrigated region of the state.

Forest Service Partners

External Partners

 
  • University of Georgia