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Volcanoes), Or Unnaturally (E.G. Anthropogenic sources-dust).
What processes perform Purification naturally?
Evaporation and Condensation
Warm air gradually cools as it expands.
Conversely the air can descend and will then compress by the higher air pressure in “the lower atmosphere”.
The 2 halves of the system composed of the rising and falling air.
The vertical movement of air due to atmospheric heating and cooling.
The dry region downwind of a mountain range is referred to as a rain shadow.
amount of water vapor as a percentage of what the air can hold “AT A PARTICULAR TEMPERATURE”
Infiltration / Runoff
When precipitation hits the ground it either soaks in (Infiltrates) or / runs off the surface.
All the land area that contributes water to a particular stream or river.
Layers of porous material through which groundwater moves
Area where water enters an area
Infiltrating water not held in soil because it trickles/percolates.
Water held in soil
The upper surface of groundwater.
Gradual settling of the land
Results when an underground cavern, drained of its supporting groundwater, suddenly collapses.
The Mineral material of soil
Soil with 40%-Silt/sand and 20% clay
Gradual physical/chemical breakdown of parent material
5 Soil horizons: From top to bottom
O (Humus: dark material at bottom of O Horizon) A Horizon (/Topsoil: roots permeate the layer E (Eluviation: Process of leaching/Dissolving away) of materials due to down movement of water. B Horizon: High in iron/alum/ calcium Last: C: weathered rock/glacial deposits/Volcanic ash.
Horizontal layers of soil formation
A vertical slice through the horizons.
Mollisols: Fertile dark soils found in temperate grassland biomes Oxisols: Soils of tropical/subtrop rainforests little O horizon due to rapid decomp of plant matter. Alfisols: Widespread moderately weathered forest soils.
Not deep, well developed OAEB horizons. Aridisols: Irrigation BAD (Salinization)
Soil ferility? And another name for it.
soils ability to support plant growth.
Farmers call this property: Tilth
Nutrients washed from the soil as water moves through it (soil).
the accumulation of salts in and on the soil to the point where plant growth is suppressed.
Water being absorbed by the roots of plants, passing through the plant and exiting as water vapor through microscopic pores in the leaves
Essential pores w/in leaves essential to the entry of CO2 and exit of 02 in photosynthesis
Chemical formulations of required nutrients without any organic matter included.
3 major processes which expose soil to erosion and lead to soil degredation:
tragedy of the commons
Overgrazing on public lands creating a lose-lose situation or a win-lose situation with the farmers.
Soils ability to hold water after it infiltrates
Land plants depend on soil being loose and porous enough to allow the diffusion of O2 into and CO2 out of the soil.
Packing of the soil w/ excessive foot or vehicular traffic
acidity or bascicity of any solution
A plant condition due to an inadequate water supply which both conserves water and shuts off photosynthesis by closing the stomata
The lose clumpy characteristic of soil. NOT texture (Size) but structure meaning arrangement.
loss of humus and subsequent collapse of topsoil because only gritty mineral content is left (NO Humus but sand/silt/clay)
Residue of partly decomposed organic matter
certian fungi with a symbiotic relationship to the roots of some plants.
process of soil and humus particlease picked up and carried by water or wind.
process of the diminishing of soil properties by erosion of topsoil and thus becoming deserts.
all natural species of living things, collectively
its existance or use benefits some other entity
value for its own sake. does not have to be useful to us to possess value
Natural biota. As long a NB is preserved there is a rich endowment of genees in the bank that can be drawn upon as needed
The study of the relationship between plants and people
tourists visit a place in order to observe wild species or unique ecological sites.
3 crtical elements in the process of designating a species as endangered or threatened
) Listing. (must not take into account economic impacts). 2.
) Critical habitat. Areas where it is found are designated as CH’s. 3.) Recovery plans.
ESA: Endangered species act. Endangered Species?
Endangered:a Species that has been reduced to a point where it is in imminent danger of becoming extinct if protection not provided.
judged to be in jeopardy but not on the brink of extinction.