OVERALL KEY DEFINITIONS Flashcards
Agricultural conservation easement (ACE)
is a voluntary, legally recorded deed restricting development on farmland. Land subjected to an ACE is generally restricted to farming and open space use. While other benefits may accrue because the land is not developed (e.g., scenic and habitat values), the easement must stipulate that the
primary use of the land is agricultural. Such an easement prohibits practices that would damage or interfere with the agricultural use of the land. Because the easement is a
restriction on the deed of the property, the easement remains in effect even when the land changes ownership (i.e., designated in perpetuity).
Farmland of local importance:
Soils important to the local economy due to their productivity and which may include tracts of land that have been designated for agriculture by local ordinance.
Each state NRCS or local ordinance designates which soils qualify.
Farmland of state importance:
Soils that do not meet all of the prime farmland criteria but that are still able to economically produce high yields of crops when treated and managed according to acceptable farming methods.
Each state NRCS or local ordinance designates which soils qualify.
Healthy Soils
Soils that have not been signif. disturbed by previous human development.
May include:
- Soil horizons similar to that of the reference soil
- Bulk densities that do not exceed the max allowable bulk densisties shown in
- Organic matter content similar to that of the ref soil
- Soil chem chracteristics similar to that of ref soil
- Absence of toxins towards plants
- Presence of vegetation that reps native plant communities.
Infill Site
Property that meets any of the following 4 conditions:
1. At least 75% of boundary borders land parcels that individually are at least 50% previously developed & that aggregate are at least 75% previously developed
2. The site & bordering parcels form aggregate parcel whose perimeter is 75% bordered by parcels that each are at least 50% developed.
3. At least 75% of the land area, exclusive of rights-of-way, within a .5 mile distance from the SITES project boundary is previously developed.
4. The lands within a .5 mile distance from the proj. boundary have a pre-project connectivity of at least 140 intersections per square mile.
Previously developed site:
At least 75% of the site are that has been altered by pre-existing paving, construction, or land use that would typically have required regulatory permitting to have been initiated. Altered landscapes resulting from current or historical clearing or filling, ag or forestry use, or preserved natural areas are considered undeveloped areas.
Prime farmland:
Designation of specific soils by the state or NRCS.
Best combo of physical & chemical characteristics for producing food. Cannot be urban built-up land or water.
Unique farmland
Refers to land other than prime farmland that is used for the production of specific high-value food and fiber crops. It has special combo of soil quality, location, growing season, and moisture supply needed to economically produce sustained high quality or high yields of a specific crop when treated and managed according to acceptable farming methods. State or NRCS designates these.
VSPZs
Vegetation and soil protection zones. Areas identified during the pre-design phase that will be protected from all disturbances throughout construction process to prevent damage.
100-Year Floodplain
Includes all areas below the 100-year flood elevations of waterways of all sizes.
FEMA flood insurance rate map: Zones A, AE, A1-A30, AH, AO, AR, A99, V, and VE.
Brownfield
Abandoned, idled, or underused industrial and commercial facility or site where expansion or redevelopment is complicated by real or perceived environmental contamination.
Can be defined by a local, state, or federal government agency.
Floodplain
Flat or nearly flat land adjacent to a stream or river that stretches from the banks of its channel to the base of the enclosing valley walls and that experiences flooding during periods of high discharge. Floodplains are subject to geomorphic and hydrologic processes.
Minimal impact site development
Development that does not significantly alter existing vegetation and hydrology of the VSPZs
Previously developed site
At least 75% of the site area that has been altered by pre-existing development.
Marine
Tidal wetlands, shorelines, mudflats, reefs
Buffer designation:
200 feet landward from normal high tide line
Estuarine
Bays, lagoons, marshes
Buffer designation:
100 feet landward from the normal high tide line
Riverine
Streams, Rivers (associated floodplains & their riparian buffer)
Buffer designation:
Tidal - 100 feet landward from normal high tide line
Lower & upper perennial - 100 feet from the ordinary high water mark or the 100-year floodplain, whichever is greater
Intermittent and unknown perennial - 50 feet from the ordinary high water mark or the 100-year floodplain, whichever is greater
Lacustrine
Lakes, ponds (associated shorelines & their riparian buffer)
Buffer designation:
Water body greater than 50 contiguous acres - 100 feet landward from the normal water edge.
Water body less than 50 contiguous acres - 50 feet landward from the normal water edge.
Palustrine
Non-tidal wetlands, seeps, springs, vernal pools, seasonal wetlands.
Buffer designation:
100 feet landward from the delineated edge of the delineated wetland.
Deepwater habitat
Permanently flooded land lying below the deepwater boundary of wetlands
Geographic extent
Refers to the measure of spatial extent bounded by a polygon with X and Y coordinates. It is described as the range, magnitude, or distance over which an aquatic ecosystem extends (Ex- the full area measurement from north to south and east to west).
Isolated wetland
Wetland with no surface water connections to other aquatic resources
Riparian buffer
Portion of adjacent land ecosystem that directly affects / is affected by the aquatic environment. May also include a portion of the hillslope that directly serves as streamside habitats for wildlife.
Provides shade, intercepts runoff, and helps prevent erosion.
Wetlands
Areas that are inundated or saturated by surface or ground water (ex- swamps, marshes, bogs) that support a prevalence of vegetation typically adapted for life in saturated conditions.