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Water cycle variations
human activities
Farming Practices
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Cards (9)
What is a key part of the water cycle?
Infiltration
when
rain
hits the
surface
, what can't
infiltrate
runs
off
instead
What
can affect infiltration
?
farming practices
what ways can farming practices affect infiltration?
Ploughing
Crops
Livestock
Irrigation
How does
ploughing
affect
infiltration
?
It
breaks up
the
surface
so that more
water
can
infiltrate
,
reducing
amount of
runoff
How do crops affect infiltration?
Increase infiltration
and
interception
compared to
bare ground
=
reduces runoff. Evapotranspiration
also
increases
, which can
increase rainfall
How does livestock affect infiltration?
Trample
and
compact
the
soil
,
decreasing
infiltration
and
increasing
runoff
example of livestock
?
cattle
How does irrigation affect infiltration?
can
increase runoff
if some of the
water
cannot
infiltrate. groundwater
or
river levels
can fall if water is
extracted
for
irrigation
Describe irrigation
?
Artificially watering
the
land
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