Urban
water
bodies
play
a
critical
role
in
regulating
urban
climate,
mitigating
the
heat
island
effect,
and
enhancing
ecological
environments.
This
study
focuses
on
five
typical
cities
Zhejiang
Province,
systematically
analyzing
cooling
effects
of
bodies.
Specifically,
divides
buffer
zones
into
basic
analytical
units
based
road
network
performs
land
surface
temperature
inversion
use
classification
using
Google
Earth
Engine
platform.
Six
representative
morphology
indicators
are
selected,
contributions
these
to
evaluated
Gradient
Boosting
Decision
Tree
regression
model.
Additionally,
optimization
strategies
for
different
proposed.
The
results
show
following:
(1)
Water
central
areas
generally
exhibit
significant
effects,
with
average
reduction
exceeding
5.13
°C
compared
built-up
all
cities.
(2)
is
higher
than
that
areas,
difference
at
least
0.63
°C.
(3)
In
Huzhou
Jiaxing,
high-temperature
low-temperature
relatively
concentrated,
while
Jinhua,
Quzhou,
Shaoxing,
more
interspersed
distribution
observed,
reflecting
spatial
heterogeneity.
(4)
Among
body
indicators,
edge
density,
proportion
landscape
area
occupied
by
patches,
largest
patch
index
water,
shape
exert
larger
impact
effects.
These
findings
provide
scientific
guidance
optimizing
layout
improving
thermal
Atmosphere,
Год журнала:
2024,
Номер
15(6), С. 716 - 716
Опубликована: Июнь 14, 2024
The
study
of
the
temporal
and
spatial
characteristics
air
pollutants
in
heavily
polluted
cities
is
extremely
important
for
analyzing
causes
pollution
achieving
a
viable
means
control.
Such
case
Xi’an,
typical
city
Fenwei
Plain,
China,
have
remained
unclear
due
to
limitations
data
accuracy
research
methods.
monthly,
daily,
hourly
patterns
O3
particulate
matter
(PM2.5
PM10)
are
analyzed
this
using
on-site
provided
by
an
urban
quality
monitoring
network.
analysis
variance
(ANOVA)
method
was
used
compare
differences
pollutant
concentrations
during
different
seasons
time
periods.
distributions
O3,
PM2.5,
PM10
at
points
following
interpolation
sites
been
analyzed.
results
show
that
concentration
from
12
p.m.
3
significantly
higher
than
morning
evening,
PM2.5
7
10
were
those
afternoon.
number
qualified
days
less
30
unqualified
more
100
2019.
There
potential
risk
exposure
with
associated
health
risks.
Even
on
same
day,
can
differ
significantly.
This
provides
scientific
basis
reducing
exposure.
Outdoor
activities
summer
beneficial
reduce
exposure,
outdoor
should
be
curtailed
evening
winter
government
formulate
public
policies
activities.
Urban
water
bodies
play
a
critical
role
in
regulating
urban
climate,
mitigating
the
heat
island
effect,
and
enhancing
ecological
environments.
This
study
focuses
on
five
typical
cities
Zhejiang
Province,
systematically
analyzing
cooling
effects
of
bodies.
Specifically,
divides
buffer
zones
into
basic
analytical
units
based
road
network
performs
land
surface
temperature
inversion
use
classification
using
Google
Earth
Engine
platform.
Six
representative
morphology
indicators
are
selected,
contributions
these
to
evaluated
Gradient
Boosting
Decision
Tree
regression
model.
Additionally,
optimization
strategies
for
different
proposed.
The
results
show
following:
(1)
Water
central
areas
generally
exhibit
significant
effects,
with
average
reduction
exceeding
5.13
°C
compared
built-up
all
cities.
(2)
is
higher
than
that
areas,
difference
at
least
0.63
°C.
(3)
In
Huzhou
Jiaxing,
high-temperature
low-temperature
relatively
concentrated,
while
Jinhua,
Quzhou,
Shaoxing,
more
interspersed
distribution
observed,
reflecting
spatial
heterogeneity.
(4)
Among
body
indicators,
edge
density,
proportion
landscape
area
occupied
by
patches,
largest
patch
index
water,
shape
exert
larger
impact
effects.
These
findings
provide
scientific
guidance
optimizing
layout
improving
thermal
