Short Term Changes to The Cycles

Question 1

Diurnal changes (water cycle)

Answer 1

Low temp at night reduces evaporation and transpiration

Convectional rainfall is a daytime phenomenon because it is reliant on the sun’s energy

Coastal regions experience morning fog because wind carries atmospheric moisture

Question 2

Diurnal changes (carbon cycle)

Answer 2

During daytime, CO2 flows from atmosphere to vegetation but at night, this is reversed due to the lack of sunlight.
This is also observed in phytoplankton

Question 3

Seasonal changes (water cycle)

Answer 3

Evapotranspiration peaks in summer and is lowest in winter.

More precipitation in summer and lesss in winter

More melting and evaporation in Tundra

Increase in foliage causes more interception which reduces infiltration and runoff

Stores in biomass increase

Question 4

Seasonal changes: carbon cycle

Answer 4

Demonstrated in changes in NPP. Latitude, day length and temp drive changes in NPP

During growing season, ecosystems like temperate forests extract large amounts of carbon