This photo shows the drainage design on the rainfall exclusion structures at the Tier III throughfall exclusion x fertilization site in Taylor County, Florida. Photo courtesy of Geoffrey Lokuta.
Virginia Tech M.S. student Brett Heim uses a LI-COR 6200 to measure soil respiration underneath a throughfall exclusion structure at the Virginia Tier III site. Photo courtesy of John Seiler.
Tier III throughfall exclusion and fertilization site in Taylor County, Florida. Photo courtesy of Jessica Ireland.
Leaf level gas exchange being measured with a Li-Cor 6400 portable photosynthesis sytem. Photo courtesy of John Seiler.
Throughfall exclusion structures visible in a November 2012 Google Earth image of the Tier III site in McCurtain County, Oklahoma.
The green shaded area in this map depicts the native range of loblolly pine; blue tags show collaborating institutions and yellow circles show locations of manipulative field experiments to examine the interaction of soil nutrient and water availability. Remote sensing image courtesy Google Earth; range map courtesy USDA Forest Service.
Loblolly pine foliage and cone. Photo courtesy of John Seiler.
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