A Phased Assessment of Restoration Alternatives to Achieve Phosphorus Water Quality Targets for Lake Okeechobee, Florida, USA
| Autor: | G. Andrew Stainback, Yogesh P. Khare, Christopher J. Martinez, Ghinwa Naja, Thomas Van Lent, Rajendra Paudel |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
restoration
lcsh:Hydraulic engineering cost-effective Geography Planning and Development Lake Okeechobee chemistry.chemical_element Wetland Aquatic Science Biochemistry best management practices lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 Scenario analysis Restoration ecology Management practices Water Science and Technology Hydrology geography lcsh:TD201-500 geography.geographical_feature_category Nutrient management Phosphorus chemistry TMDL Environmental science watershed modeling Water quality Tonne dispersed water management |
| Zdroj: | Water, Vol 11, Iss 2, p 327 (2019) Water Volume 11 Issue 2 |
| ISSN: | 2073-4441 |
| Popis: | Achieving total phosphorus (TP) total maximum daily loads (TMDL) for Lake Okeechobee (Florida, FL, USA), a large freshwater lake, is a key component of the greater Everglades ecosystem restoration and sustainability of south Florida. This study was aimed at identification of a cost-effective restoration alternative using four TP control strategies&mdash Best Management Practices (BMPs), Dispersed Water Management (DWM), Wetland Restoration, and Stormwater Treatment Areas (STAs)&mdash to achieve a flow-weighted mean TP concentration of 40 µ g/L at lake inflow points, through a phased scenario analysis approach. The Watershed Assessment Model was used to simulate flow and phosphorus dynamics. The 10-year (1998&ndash 2007) &lsquo Base&rsquo scenario calibration indicated &lsquo acceptable&rsquo to &lsquo good&rsquo performance with simulated annual average flows and TP load of 2.64 × 109 m3 and 428.6 metric tons, respectively. Scenario results showed that TP load reduction without STAs would be around 11&ndash 40% with respect to Base compared to over 75% reduction requirement to achieve TMDL, indicating STAs as a necessary component to achieve restoration. The most cost-effective alternative to achieve TP target consisted of implementation of nutrient management BMPs, continuation of existing DWM projects, and the construction of ~200 km2 of STAs for a total project cost of US $4.26 billion. |
| Databáze: | OpenAIRE |
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