Test 2 Flashcards
(60 cards)
movement of water from ocean, to atmosphere, to land, and back to the ocean; sets the limit for how much water is available
Hydrologic Cycle
areas nearest to the river’s course that are flooded periodically; soils are fertile as a result of frequent deposition of silt; good areas for agriculture
floodplain
nutrient-rich edge of a water body; has rooted plants
littoral zone
bottom of a body of water; has invertebrates
benthic zone
open water, has photosynthesis
limnetic zone
the soil is saturated with shallow standing water
wetlands
shallow; plants grow above the surface
freshwater marshes
shallow water in forested area
swamps
ponds covered in thick floating mats of vegetation
bogs
the amount of water falling as precipitation that flows off the land a surface and subsurface flow
runoff
water in pore spaces in rock and sediments
groundwater
uppermost layer of groundwater
water table
a body of permeable rock that can contain or transmit groundwater
aquifer
warm water sinks, oxygen for deep organisms raises
downwelling
rich fisheries; the rising of cold, deep water to the surface, rich in nutrients
upwelling
a body of water in the hydrologic cycle
reservoir
movement of water among reservoirs
flux
southern oscillation; a shift in atmospheric pressure, sea surface temperature, and ocean circulation; decreasing air pressure in the eastern Pacific triggers it by suppressing upwelling on the America’s Pacific coast, which devastates fisheries and costs billions of dollars each year
El Nino
every 3-5 years; stronger than usual trade winds push war water in farther west across the tropical Pacific; also, increased upwelling causes lower than average sea surface temperatures, so atmospheric pressure is higher, inhibiting cloud formation in the eastern Pacific Ocean and more storms occur over the western Pacific; dry, warm conditions over southern US and Mexico with wet conditions over SE Asia and Australia
La Nina
edges of a river; have high biodiversity; is transitional between aquatic and terrestrial habitat; has shallow water tables and depends on floods to support their biological community
Riparian Zones
using treated wastewater for beneficial purposes, such as industry, irrigation, etc
water recycling
any process treating wastewater for reuse
water reclamation
converts saltwater to fresh water; it uses a lot of energy
desalination
1) O 2) A 3) E 4) B 5) C 6)R
Soil Structure