CLIMATIC STRESSES Flashcards
CLIMATIC STRESSES
1) drought
2) salinity
3) lahar
4) el niño and la niña
5) global warming
DROUGHT
insufficiency of rainfall
ABSOLUTE DROUGHT
29 consecutive days without rainfall (0.25 mm)
PARTIAL DROUGHT
15 consecutive days without rainfall
SOIL SALINITY
high evaporation rates and low annual rainfall
SOURCE OF SALTS
1) irrigation water
2) fertilizer
3) compost
4) manure
EXCESS WATER TO REMOVE 50% SOLUBLE SALTS
3 inches
EXCESS WATER TO REMOVE 90% SOLUBLE SALTS
5 inches
LAHAR
mudflow of pyroclastic material and water flowing from a volcano
EL NIÑO
warming of water in pacific ocean
LA NIÑA
cooling of water in pacific ocean
EL NIÑO WEATHER
1) rain and flooding along pacific coast
2) tornadoes and thunderstorms in southern US
3) fewer hurricanes in Atlantic
LA NIÑA WEATHER
1) snow and rain on west coast
2) cold weather in alaska
3) warm weather in rest of USA
4) drought in southwest
5) higher number of hurricanes in Atlantic
EL NIÑO/LA NIÑA CONDITIONS
less than five months of anomaly
EL NIÑO/LA NIÑA EPISODE
five months or longer anomalies
