Baldwin County Wetland Conservation Plan - Alabama Department ...

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Baldwin County Wetland Conservation Plan Final Summary Document Riverine 2 – one of the five wetland systems described in the USFWS wetland classification scheme. This system includes all wetlands and deepwater habitats contained within a channel, with two exceptions: 1) wetlands dominated by trees, shrubs, persistent emergents, emergent mosses, or lichens; and 2) habitats with water containing ocean-derived salts in excess of 0.5 parts per hundred. Saltwater Intrusion – the occurrence of unsuitable levels of salt within local aquifer supplies which are usually used for domestic purposes such as drinking, bathing, or irrigating. Causes include overpumping of coastal aquifers and the lowering or destruction of coastal dunes and wetlands (which serve as aquifer recharge areas) through development activities. Seasonally Flooded – one of the nontidal water regime modifiers used in the USFWS wetland classification scheme. Surface water is present for extended periods especially early in the growing season, but is absent by the end of the season in most years. When surface water is absent, the water table is often near the land surface. Sediment/Toxicant/Nutrient Removal – one of four wetland functions assessed in the RFWAM. This describes the capacity of a wetland to capture, retain, remove and/or transform sediment, toxicants, or nutrients which enter a wetland system. These processes are facilitated by physical, chemical and biological processes associated with the wetland system. Semi-permanently Flooded – one of the nontidal water regime modifiers used in the USFWS wetland classification scheme. This describes wetland areas where surface water persists throughout the growing season in most years. When surface water is absent, the water table is usually at or very near the land surface. Site-by-Site Evaluation Required – refers to one of three designation for area wetlands found on the ADID maps. Wetlands with this designation have a mixed functional capacity or one that is difficult to estimate remotely. Further investigation of the site is required to determine its suitability for fill. Stakeholder – a party with a specific interest in a particular activity. For BCWCP purposes, it refers to those individuals or entities with an interest in wetland activities as they pertain to Baldwin County. BCWCP project stakeholders include, but are not limited to, the following: wetlands regulatory/commenting agencies, private landowners, public land managers, land developers and real estate professionals, consulting engineers, biologists, landscapers, conservation groups, the forest industry, the seafood industry, the agricultural industry, and the Department of Transportation. Water/Floodwater Storage – one of four wetland functions assessed in the RFWAM. This describes the capacity of a wetland to retain surface water for long or short durations. The source of water may be overbank flow, overland flow, or precipitation. Watershed – a geographic area from which a surface watercourse or groundwater system derives its water; the area of land where all precipitation drains to a common sink. Water Table – the surface on which the fluid pressure in the pores of a porous medium is exactly atmospheric; the level below which the ground is completely saturated with water. 45
Baldwin County Wetland Conservation Plan Final Summary Document Wetland – those areas that are inundated or saturated by surface or groundwater at a frequency or duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs and similar areas. Wildlife/Fisheries Habitat – one of four wetland functions assessed in the RFWAM. This describes the capacity of a wetland to provide the requisite needs, including foraging areas, water, cover, nesting areas and resting areas, to support expected species. 46
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Baldwin County Wetland Conservation Plan - Alabama Department ...

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