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Wetlands Case Study

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Specific Aims Wetlands are diverse, rich ecosystems that protect against floods, droughts, and filter out contaminants(1). However, at least 50% of the United States wetlands have been dredged, filled, and drained to make way for housing developments and agricultural land(2). Remediation efforts have been happening across the country. However, current reclaimed wetlands take 15 to 20 years to become as they once were(2, 3). One ecological relationship that has been discovered within a wetland are symbiotic relationships between plants and arbuscular mycorrhizal fungi(4). This relationship has been found to increase a plants nutrient intake by, essentially, extending the plants roots. However, the specific dynamics and benefits of …show more content…

The proposed study will establish a model that will explore the relationship of mycorrhizal fungi and wetland plants exploring whether plant growth is expediated and contaminant removal is increased. The study can help improve remediation time of restored wetland and enhance efficiency in contaminant removal of these wetlands especially within an agricultural setting. Research Strategy Significance of the Project to the Disciple A wetland is hard to define. Depending on the resource used, there could be up to four different definitions for a wetland (10). However, Cowardin probably gives the most comprehensive definition or requirements of a wetland (10). First, a wetland is defined as being in transition between a terrestrial and an aquatic system. The water table is near the surface of the wetland or the land is covered by shallow water. Also, a wetland must meet at least one of three additional criteria: the land supports predominantly hydrophytes, the substrate is predominantly undrained such as hydric soil, and if the substrate is not soil, it is saturated with water or covered by shallow water at some time during the growing season (10, 11). The importance of wetlands to the global ecosystem are becoming clearer after every study. Wetlands are found all over the Earth and protect against flooding, erosion of beaches, and contaminated water. Moreover, wetlands are the home to complex,

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