P Balance of a Restored, Previously Farmed Wetland/title> <meta name="description" content="Project 2010 State Water Resource Research Institute Programs"> <meta name="author" content="John Schefter"> <meta name="keywords" content="Phosphorus, wetland, restoration"> <meta name="publisher" content="USGS, U.S. Geological Survey">  <link rel="stylesheet" type="text/css" href="/wrri/style/common.css" /> <link href="/wrri/style/custom.wrri.css" rel="stylesheet" type="text/css" /> <link href="/wrri/style/styles.css" rel="stylesheet" type="text/css" />   <script type="text/javascript" src="http://www.usgs.gov/scripts/analytics/usgs-analytics.js"></script> </head> <body>  <div class="bannerColorBand"> <div class="banner"> <div class="identifier"><a href="http://www.usgs.gov/" title="U.S. Geological Survey Home Page"><img src="/images/header_graphic_usgsIdentifier_white.jpg" alt="USGS" width="178" height="72" style="border: none;" /></a></div> <img src="/images/header_graphic_spacer.gif" height="72" width="1" alt="space" style="position: absolute;" /> <div class="ccsaBox"> <div class="ccsa"> <br /><a href="http://www.usgs.gov/">USGS Home</a><br /> <a href="http://www.usgs.gov/ask/index.html">Contact USGS</a><br /> <a href="http://www.usgs.gov/search">Search USGS</a><br /> </div> </div> </div> </div> <div class="siteTitle"> <p id="pTitle">State Water Resources Research Institute Program</p> </div>   <div id="navmain" class="noprint"> <ul class="navmain"> <li><img src="/images/dotorange12.gif" width="11" height="12" alt="dot" /> <a title="WRRI home page" href="http://water.usgs.gov/wrri/index.html">Home</a></li> <li><img src="/images/dotorange12.gif" width="11" height="12" alt="dot" /> <a title="Program Mission" href="http://water.usgs.gov/wrri/mission.html">Mission </a></li> <li><img src="/images/dotorange12.gif" width="11" height="12" alt="dot" /> <a title="News and Announcements" href="http://water.usgs.gov/wrri/news.html">News</a></li> <li><img src="/images/dotorange12.gif" width="11" height="12" alt="dot" /> <a title="Institute Addresses" href="http://water.usgs.gov/wrri/institutes.html">The Institutes</a></li> <li><img src="/images/dotorange12.gif" width="11" height="12" alt="dot" /> <a title="Research Projects" href="http://water.usgs.gov/wrri/projects.html">Projects</a></li> <li><img src="/images/dotorange12.gif" width="11" height="12" alt="dot" /> <a title="Annual Reports of the Institutes" href="http://water.usgs.gov/wrri/a_reports.html">Annual Reports</a></li> </ul> </div> <br> <p><b>Project ID</b>: 2012NC168B <br><b>Title</b>: Evaluation of the P Balance of a Restored, Previously Farmed Wetland <br><b>Project Type</b>: Research <br><b>Start Date</b>: 3/01/2012 <br><b>End Date</b>: 2/28/2013 <br><b>Congressional District</b>: 04 <br><b>Focus Categories</b>: Water Quality, Nutrients, Surface Water <br><b>Keywords</b>: Phosphorus, wetland, restoration <br><b>Principal Investigators</b>: Vepraskas, Michael; White, Jeffrey G <br><b>Federal Funds</b>: $ 31,078 <br><b>Non-Federal Matching Funds</b>: $ 43,422 <br><b>Abstract</b>: To ensure that wetland restoration practices do not contribute to pollution of nutrient sensitive streams, a better understanding of P fluxes into, within, and out of wetlands restored from agricultural land is needed. The primary objectives for this study are to: i) determine the change in soil total P (TPsoil) over the 8 years since the study site was restored to wetland, ii) determine P fluxes into and out of the wetland that affect TPsoil, iii) combine objectives i and ii to create a P-balance, and iv) evaluate the accuracy of the P balance by calculating the error in the P-balance, fluxes, and change in P storage. The research wetland, Juniper Bay, was restored from agricultural soils in 2004. Our proposed P balance will relate changes in TPsoil over an 8 year period to the primary inputs of P to the bay (atmospheric deposition, ground water inflow) and outputs (plant uptake, surface and ground water outflow). The development of a P-balance of Juniper Bay will aid in selecting restoration sites that will have minimal impact on water quality. </p>  <p class="footerBar" style="clear: both;"> <a href="http://www.usgs.gov/accessibility.html" title="Accessibility Policy (Section 508). 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