Authors:

Natalia Madrid

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About Paper:

Phosphorus (P) is the fifteenth element on the periodic table. It is primarily found in the form of phosphate in the environment and is an essential nutrient vital for life. Phosphoru s is frequently used in agriculture and in urban environments as fertilizer. While its scarci ty can limit plant growth, excessive phosphorus can lead to runoff into nearby bodies of water, potentially creating harmful ecological conditions such as eutrophication, har mful algal blooms, and hypoxia. Because of this, efficient phosphorus manageme nt in agriculture and urban settings is critical for a sustainable environment, especial ly for aquatic ecosystems. While information exists on multiple land management pract ices to minimize the loss of P from land to water, very limited information is availabl e on how various stream restoration practices aid in assimilating P in streams. Stream s are the conduits that connect the land with downstream waterbodies. Understanding ho w P cycles within restored streams could enhance our knowledge of the effectivenes s of stream restoration practices on P cycling. This study aims to analyze the dynamics o f phosphorus in restored streams by conducting short-term nutrient injections in a rece ntly restored stream in Greeneville, South Carolina. Various stream features such a s cross vanes, single-arm vanes, and step-pool features are incorporated in the restorati on. P, nitrogen (N) and NaCl salts were added to prepare the dosing solution. Stream f low was measured to establish the dosing rate. A Mariotte bottle was used for injectio n. Background and plateau water samples were collected to estimate the cycling of P and N by calculating the uptake lengths for these nutrients. While the study waits on phosphoru s-specific data the presentation will utilize initial data such as conductivity curves, flo w rates, basic water quality parameters and stream features to discuss the general movement of P in the

Source:

University of Florida / Natalia Madrid, Kemberly Nertulus, Debabrata Sahoo / 2024

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Co-authors:

Natalia Madrid