a hillslope profile position that forms the steepest and generally linear, middle portion Backslope – of the slope. marshy or swampy, depressed areas of flood plains between natural levees and valley Backswamp – sides or terraces the presence of calcium carbonate in the soil parent material within the rooting zone; Calcareous – relatively alkaline a dense, compact, slowly permeable layer in the subsoil having much higher clay content Claypan – than the overlying material hard, extremely dense or compact crystalline sedimentary rock, consisting dominantly of Chert – interlocking crystals of quartz a significant vertical, or near vertical, rock exposure Cliff – a type of sedimentary rock that is a carbonate mineral composed of calcium magnesium Dolomite – carbonate the upper most reach of a stream channel system characterized by little meandering Drainageway – a site where soil moisture is limiting during the growing season; low available water capacity Dry – a low mound, ridge, bank or hill of loose, wind-blown sand Dune – steep, south and west-facing slopes, which are warmer and drier than other slope aspects Exposed – a type of woodland that occurs on soils with a root restricting subsoil layer within 20 to Flatwoods – 30 inches, resulting in very slow runoff and ponding that remains saturated for most of the winter and early spring months but dries out and becomes very dry in the summer months; plants that grow there must be adapted to both conditions the nearly level plain that borders a stream and is subject to inundation under Floodplain – conditions a hillslope position at the base of a slope where hillslope sediment (colluvium) Footslope – accumulates a vegetative community dominated by trees forming a closed canopy and interspersed with Forest – shade-tolerant understory species a dense, brittle subsoil horizon that is extremely hard and compact when dry Fragipan – open, rocky, barren vegetative community dominated by drought-adapted forbs and Glade – grasses, typically with scattered, stunted woody plants formed by cooling and solidification of magma. Granite and rhyolite are typical Igneous –bedrock igneous bedrocks in Missouri a type of sedimentary rock composed largely of calcium carbonate Limestone –
Backslope – a hillslope profile position that forms the steepest and generally linear, middle portion of the slope. Backswamp – marshy or swampy, depressed areas of flood plains between natural levees and valley sides or terraces Calcareous – the presence of calcium carbonate in the soil parent material within the rooting zone; relatively alkaline Claypan – a dense, compact, slowly permeable layer in the subsoil having much higher clay content than the overlying material Chert – hard, extremely dense or compact crystalline sedimentary rock, consisting dominantly of interlocking crystals of quartz Cliff – a significant vertical, or near vertical, rock exposure Dolomite – a type of sedimentary rock that is a carbonate mineral composed of calcium magnesium carbonate Drainageway – the upper most reach of a stream channel system characterized by little meandering Dry – a site where soil moisture is limiting during the growing season; low available water capacity Dune – a low mound, ridge, bank or hill of loose, wind-blown sand Exposed – steep, south and west-facing slopes, which are warmer and drier than other slope aspects Flatwoods – a type of woodland that occurs on soils with a root restricting subsoil layer within 20 to 30 inches, resulting in very slow runoff and ponding that remains saturated for most of the winter and early spring months but dries out and becomes very dry in the summer months; plants that grow there must be adapted to both conditions Floodplain – the nearly level plain that borders a stream and is subject to inundation under conditions Footslope – a hillslope position at the base of a slope where hillslope sediment (colluvium) accumulates Forest – a vegetative community dominated by trees forming a closed canopy and interspersed with shade-tolerant understory species Fragipan – a dense, brittle subsoil horizon that is extremely hard and compact when dry Glade – open, rocky, barren vegetative community dominated by drought-adapted forbs and grasses, typically with scattered, stunted woody plants Igneous –bedrock formed by cooling and solidification of magma. Granite and rhyolite are typical igneous bedrocks in Missouri Limestone – a type of sedimentary rock composed largely of calcium carbonate
F115BY025MO_10-12.docx