The Hole in the Donut Wetland Restoration Project
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The Hole in the Donut Wetland Restoration Project
This uniquely named area of Everglades National Park is 10,000 acres that was previously used as farmland from 1916 to 1975. Over 50 years of agricultural use had changed the soil’s substrate and made it more hospitable to the Brazilian pepper tree, a highly invasive species that is detrimental to native Florida ecosystems. While the pepper tree brought an end to farming in the area, its years of overgrowth had invaded the soil, and it could no longer support native plants or wildlife. Research had shown that the only truly effective way to purge the Brazilian pepper tree from a stretch of land was to remove not only the vegetation itself, but also the disturbed soil underneath it. Westwind was brought in to assist in the clearing and removal process. We would begin the process by clearing out allthe vegetation. We would then scrape away the vegetation and disturbed soil, and haul the load away in our dump trucks. The dump trucks would offload the soil and vegetation at a disposal site, and then road graders would perform a final scrape of the remaining earth to ensure that no invasive material is left. This process returned over 3,200 acres of land to its proper elevation and hydroperiod, thus allowing the native wildlife to recolonize the area. The removed soil was used in various studies to learn how South Florida can strengthen its battle against the invasive Brazilian pepper tree.
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