USGS 7.5-Minute Quadrangle Maps - The most convenient source for a paper base map in the U.S. with
a scale of 1:24,000. Units should not be smaller than 10 acres.
Koppen System - A climate classification system that divides the World's terrestrial climates into 5
separate types, each starting with a letter (A,B,C,D and E)
Inclusions - A rock unit that is younger than the layers from it came from
Alluvium - sediment deposited by a river or stream
Kame - A steep-sided mound of sand and gravel deposited by a glacier
Esker - A winding ridge of sand and gravel deposited by a glacier
Moraine - A mass of rocks and sediment carried down and deposited by a glacier
Aspect - Slope direction or orientation
Landsat Imagery - The longest running enterprise for acquisition of satellite imagery
Aquifer - A water-bearing layer of permeable rock, sand, or gravel
USFWS Wetland Classification - Marine, estuarine, riverine, lacustrine and palustrine
Wetlands - Are important element in the global cycles of nitrogen and suphur
Soil Series - Group of soils having horizons similar in characteristics and arrangement in the soil profile.
Each soil series is generally named for a town or other geographic feature near the place where a soil of
, that series was first observed and mapped. Soil series are then divided into phases. For example,
"Gilman" would be a series, "Gilman loam" would be a phase.
Soil Profile - Sequence of soil layers (horizons). Soil profile proceeds in this order from top to bottom: O
(Organic Matter), A (Mineral Horizons), E (Eluvial, Leaching), B (Illuvial, Accumulated from Above), C
(Unconsolidated Material), R (Bedrock)
Ecotones - Transitional areas between ecological communities and are generally of greater richness than
the communities they separate.
Primary Industry (Sector) - Farming, fishing, mining, and logging
Tertiary Industry (Sector) - Retail, wholesale and services
Population projection methods - Cohort-survival, multiple regression and simulation models
Cohort-Survival Model - A population projection model that figures fertility, mortality, and net
migration.
Statistical Simulation Model - A population projection model that is primarily used to project larger
trends
Soil Capability Classes - A system created by the NRCS to assist in agricultural management practices find
the most suitable soils. Class I soils have the fewest limitations, and limitations increase with the class
number.
LESA - A system created by the NRCS that includes factors, weights, and scales to evaluate soils and
other site conditions, primarily for farmland and it's protection.
Carrying Capacity - The number of individuals that the resources of a habitat can support without
significant deterioration.
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