Forests,
Год журнала:
2023,
Номер
14(8), С. 1682 - 1682
Опубликована: Авг. 19, 2023
Scientific
and
reasonable
planning
of
urban
forests
is
crucial
to
mitigate
the
UHI
effect
create
a
comfortable
local
climate.
This
study
focused
on
maximizing
synergistic
landscape
design
parameters
(i.e.,
Landscape
Shape
Index
(LSI),
Percentage
Green
Area
(PGA),
Park
(PA),
Water
(PWA))
through
orthogonal
experimental
numerical
simulation
improve
regulation
thermal
environment
parks
in
surrounding
blocks.
For
neighborhood
low-rise
buildings,
influence
PGA
was
most
significant
morning
with
contribution
rate
50.43%,
while
PWA
influential
during
midday
evening,
rates
73.02%
52.30%,
respectively.
In
contrast,
PA
62.11%
for
high-rise
building
neighborhood,
impact
43.99%.
addition,
played
vital
roles
at
night.
proposed
combinations
that
met
requirements
two
types
neighborhoods,
which
would
help
guide
construction
forests.
Humanities and Social Sciences Communications,
Год журнала:
2023,
Номер
10(1)
Опубликована: Окт. 10, 2023
Abstract
Urban
parks
can
effectively
reduce
surface
temperatures,
which
is
an
important
strategic
approach
to
reducing
the
urban
heat
island
effect.
Quantifying
cooling
effect
of
and
identifying
their
main
internal
influencing
factors
for
improving
thermal
environment,
achieving
maximum
benefits,
sustainability.
In
this
study,
we
extracted
data
frobut
often
unrealisticm
28
in
Zhengzhou,
China.
We
combined
multivariate
data,
such
as
Landsat
8
retrieve
land
temperature
(LST),
extract
park
interior
landscape,
quantify
using
three
indices:
distance
(
L
∆max
),
difference
magnitude
(∆
T
max
gradient
G
temp
).
Furthermore,
relationship
between
landscape
characteristics
average
LST
indices
was
analyzed.
The
results
showed
that
different
buffer
ranges
affect
LST-distance
fitting
parks,
a
300-m
zone
optimal
interval.
However,
specific
should
be
analyzed
select
range
index
calculation
errors.
Additionally,
mean
values
LST,
∆
,
Zhengzhou
were
34.11,
3.22
°C,
194.02
m,
1.78
°C/hm,
respectively.
Park
perimeter
(PP),
area,
green
area
(GA),
shape
(LSI)
both
significantly
correlated
with
associated
maintaining
low
parks.
mainly
affected
by
GA,
LSI,
perimeter-area
ratio,
whereas
positively
PP.
Finally,
threshold
value
efficiency
0.83
ha,
comprehensive
every
aspect.
Ecological Indicators,
Год журнала:
2024,
Номер
160, С. 111847 - 111847
Опубликована: Март 1, 2024
The
frequency
and
intensity
of
extreme
heat
events
have
been
increasing
due
to
the
combined
effects
global
climate
change
urbanization.
Urban
green
infrastructure,
including
urban
blue
space,
has
recognized
as
an
effective
measure
mitigate
heat.
However,
infrastructure
on
health
risk
were
insufficiently
addressed.
To
address
this
gap,
we
conducted
a
comprehensive
assessment
in
megacity
Beijing
with
rapidly
aging
population.
Various
data
sources
collected,
remote
sensing
images,
meteorological
from
weather
stations,
point
interest(POI)
data,
social
statistics.
Following
triangle
theory,
hazard,
population
exposure,
vulnerability
components
evaluated
at
census
tract
level.
weights
indicators
determined
using
Principal
Component
Analysis.
Moran's
I
Getis-Ord
Gi*
statistics
used
identify
hotspot
areas.
evaluate
risk,
Green
Infrastructure
Index
(GII)
was
created
quantitatively
abundance
accessibility
infrastructure.
analysis,
spatially-explicit
Heat
Health
Risk
(HHRI),
indicated
that
HHRI
central
area
inhabited
by
high-income
groups
is
2.66
times
its
suburban
counterpart.
primary
driving
factors
identified
high
density
elevated
temperatures.
Census
tracts
abundant
exhibited
low
likelihood
becoming
high-risk
areas,
probability
less
than
2%,
while
regions
limited
had
54.26%
This
highlights
significance
expanding
coverage
spaces
water
areas
reduce
risk.
findings
provide
valuable
insights
for
development
mitigation
measures
enhancing
thermal
resilience
through
nature-based
adaptation.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Июль 13, 2024
Rapid
urbanization
has
led
to
increasingly
prominent
urban
heat
island
phenomena
and
social
inequality.
It
is
urgent
quantify
the
threshold
area
of
parks
from
multiple
perspectives
maximize
cooling
effect
improve
equity
park
services.
Using
33
in
Harbin
City
as
research
objects,
four
indices,
i.e.,
intensity
(PCI),
distance
(PCD),
(PCA),
efficiency
(PCE),
were
used
explore
value
(TVoE)
size.
The
OD
(origin-destination)
matrix
model
was
constructed
assess
spatial
accessibility
community
range.
Gini
coefficient
range
accessibility.
relative
contribution
each
influencing
factor
indicator
quantified
through
regression
modeling.
results
showed
that
average
PCI
3.27
℃,
PCD
277
m,
PCA
115.35
ha,
PCE
5.74.
Gray
space
dominant
for
PCI,
PCD,
(relative
contributions
100%,
31%,
19%,
respectively).
Park
28%).
TVoE
sizes
based
on
calculated
82.37
ha
2.56
respectively.
39.2%
94.01%
communities
can
reach
ranges
within
15
min
walk
mode
transit
mode,
Approximately
18%
neighborhood
residents
are
experiencing
severe
inequities
This
study
guide
design
maximizes
effects,
well
inform
city
planners
more
equitable
allocation
resources.
