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DROUGHT EFFECTS ON SOIL PHOSPHORUS OF NORTH GEORGIA**

Abstract

Drought, a period in which precipitation has been low or absent, may impact our environment including the nutrient cycling that is critical to forest ecosystems. Climate change may worsen drought conditions and thus diminish microbial decomposition that produces bioavailable phosophorus. This research focuses on the effects drought may have on orthophosphate, an important bioavailable form of phosphorus, over the course of a 1 month simulated drought on lands adjacent to Young Harris College, GA. Polyvinyl chloride (PVC) pipes were installed approximately 20cm into the ground with a waterproof, clear covering to simulate drought on the soils within. PVC soil cores were subsequently brought into the lab for measurement of orthophosphate concentrations relative to control (non-drought) soils. Results will help to understand the effects of climate change, drought specifically, on soil fertility. Completion of this project will occur early in 2024.

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