Chapter 6 Flashcards
Hydrologic cycle
The circulation and transformation of water throughout the earths atmosphere hydrosphere cryosphere lithosphere and biosphere
Hydronic cycle involves
Evaporation
Precipitation
Advection
Runoff and groundwater mov
Soil water budget
Inputs
Outputs
An accounting system for soil moisture
Precipitation
Evaporation / transpiration
Transpiration
The outward movement of water through the stomata of leaves
Evapotranspiration
Evaporation + transpiration
Potential evapotranspiration
The water that would evaporate and transpire under optimum moisture conditions
Deficit
The unsatisfied moisture demand
Actual evapotranspiration
Potential - deficit
Surplus
The water oversupply when potential is satisfied and soil moisture is full
Runoff
Groundwater
The part of the hydrologic cycle budget that lies beneath the surface but is tied to surface supplies
Zone of aeration
Where soil and rock are less than saturated
Zone of saturation
Where the pores only contain water
Aquifer
A rock layer that is permeable to groundwater flow in unstable amounts sits above an impermeable rock layer
Problems to groundwater resources (2)
Groundwater mining
Pollution of groundwater
Ground water mining
When aquifers are pumped beyond their flow and recharge capacities
Drawdown
Come of depression
