| Popis: |
Hole-In-The-Donut (HID) is one of the most important restoration sites in the unique ecosystem of the Florida Everglades. The undertaking restoration project in HID is to reestablish native vegetation that is only supported by the original nutrient-poor soils and involves excavation and the permanent disposal of the exotic plants and the rock-plowed substrates. Currently, the excavated substrates are being stockpiled in HID areas. Nutrient leaching, particularly nitrogen (N) and phosphorus (P), from the soil disposal mounds and its potential subsequent transport to surrounding wetlands are among environmental concerns because the rock-plowed substrates had been farmed intensively and fertilized for more than 30 years. The primary goal of this study was to assess the leaching potentials of N and P in the soil disposal mounds and provide a guideline for the development of management strategies. Results derived from the column leaching study showed that the average peak concentrations were 9.8 and 13.9 mg L−... |
