water cycle Flashcards
how do humans affect hydrologic cycle
withdraw large quantities of freshwater, clear vegetation, add nutrients and pollutants to reduce water quality, build artifical reservoirs, burn fossil fuels and pollute air
why do humans clear vegetation
land and space for mining, agriculture, construction, urbanization
where do humans get freshwater from
streams, lakes, underground sources
consequences of human affects on water cycle
increased runoff, reduced recharge of groundwater, increased flooding, accelerated soil erosion, increase in hypoxic zones, saltwater intrusion, warmer climate changes cycle
transpiration
from plants
evaporation
from land and ocean
precipitation
to land, to ocean
runoff
to surface and to ocean
water storage
groundwater, ocean water, runoff