Sustainability,
Год журнала:
2024,
Номер
16(17), С. 7832 - 7832
Опубликована: Сен. 8, 2024
The
green
utilization
of
urban
land
is
a
critical
component
regional
high-quality
development.
Enhancing
the
efficiency
(GUEUL)
great
significance
to
improving
quality
ecological
environment
and
achieving
lifestyle
low-carbon
production.
With
process
urbanization,
industrial
structure
constantly
adjusted,
which
has
an
impact
on
utilization.
Taking
43
cities
in
Bohai
Rim
region
as
example,
super-efficiency
slack-based
measure
model
with
undesirable
outputs
(super-SBM-undesirable
model)
was
employed
evaluate
GUEUL
from
2006
2021,
panel
quantile
used
explore
GUEUL.
results
showed
that
appeared
fluctuating
upward
trend
0.664
0.837
2021.
High-value
zones
shifted
western
Liaoning
province
southern
Shandong
“C”-shaped
belt
around
coastline
expanded
continuously,
while
low-value
decreased
significantly.
Furthermore,
influence
significantly
positive,
but
there
were
significant
differences
among
different
levels.
Industrial
upgrading
exerted
most
effect
improvement
zones,
rationalization
dominant
high-value
technologization
more
medium-low-value
zones.
Therefore,
differentiated
adjustment
policies
should
be
formulated
based
actual
condition
each
city
improve
Ecological Indicators,
Год журнала:
2024,
Номер
160, С. 111824 - 111824
Опубликована: Март 1, 2024
Urban
land
green
use
efficiency
(ULGUE)
is
one
of
the
important
indicators
growth,
making
limited
resources
exert
optimal
benefits
and
minimize
environmental
pollution,
enabling
development
cities.
This
survey
measures
ULGUE
284
Chinese
cities
at
prefecture
level
above
using
Super-SBM
model,
built
around
panel
data
from
2004
to
2021.
The
geographic
temporal
evolution
features
are
studied
ArcGIS
exploratory
spatio-temporal
analysis
(ESTDA).
elements
influencing
assessed
a
spatial
econometric
model.
It
found
that:
(1)
fluctuates
rises
with
time
but
has
still
not
achieved
validity
in
general;
regionally,
west
>
east
central,
an
overall
roughly
decreasing
trend
perimeter
center;
provincially,
Beijing,
Tianjin,
Shanghai,
Hainan
basically
achieve
validity.
(2)
Each
city's
enthusiastic
association.
number
dynamic
local
structures
increases,
strong
dependence
regional
synergy
be
further
strengthened.
leap
matrix
indicates
that
most
have
undergone
transformation
cohesion.
(3)
Spatial
modeling
results
highlight
assisted
by
urbanization,
industrial
structure,
regulation,
economic
development,
while
it
hampered
population
density,
scientific
technical
input,
financial
development.
may
optimized
through
bolstering
urban
collaboration,
refining
system,
developing
utilizing
orderly
manner,
adjusting
constructing
system
"government,
industry,
academia,
research,
application."
Ecological Indicators,
Год журнала:
2024,
Номер
162, С. 112025 - 112025
Опубликована: Апрель 16, 2024
This
study
focuses
on
improving
environmental
protection
and
facilitating
coordinated
economic
social
development
in
the
Yangtze
River
Economic
Belt
(YREB).
Examining
progress
of
green
11
provinces
cities
within
YREB.
The
Super
SBM
model
GML
index
were
utilized
to
assess
efficiency
these
regions
from
2008
2021.
Additionally,
spatial
distribution,
evolutionary
trends,
determinants
explored
through
hot
cold
spot
analysis,
kernel
density
estimation,
random
forest
RF
method,
Tobit
model.Findings
indicate
that
overall
is
relatively
notable,
with
upstream
downstream
areas
exhibiting
higher
compared
midstream
regions.
Shanghai
Zhejiang
have
emerged
as
frontrunners
development.
Analysis
spots
revealed
are
predominantly
located
Delta,
while
sub-cold
extend
upstream,
forming
concentrated
contiguous
reaches.
Kernel
densities
show
more
efficient
particular
areas.
In
contrast,
witnessed
a
decline
this
efficiency.
Regarding
influencing
factors,
ecological
identified
direct
influence
Furthermore,
degrees
advancement,
governmental
support,
investment
pioneering
science
technology
exert
substantial
development..
Forests,
Год журнала:
2024,
Номер
15(1), С. 135 - 135
Опубликована: Янв. 9, 2024
Urban
green
spaces
provide
very
important
environmental
and
social
services.
Their
dynamic
changes
are
driven
by
a
combination
of
natural
socioeconomic
factors.
However,
the
coupling
mechanism
these
factors
has
not
been
systematically
studied.
In
this
study,
we
examined
characteristics
space
in
Guangzhou
from
different
zoning
perspectives
explored
regional
heterogeneity
individual
interactive
effects
driving
using
geographic
detector.
The
results
showed
that
(1)
2000
to
2020,
annual
change
rate
area
central
was
more
apparent
than
suburban
areas.
fragmentation
near
suburbs
had
increased.
(2)
Changes
were
influenced
topography,
climate,
development.
From
2010
expansion
built-up
land
GDP
growth
gradually
substantial
effect
on
suburbs.
(3)
q-values
interaction
detections
geodetector
explanatory
power
most
factor
interactions
exceeded
Green
primarily
economic
expansion.
contrast,
mainly
urban
topography
climate.
far
affected
climate
human
activity
intensity.
methods
study
can
decision
support
for
planning
system
other
cities
or
regions.
Ecological Indicators,
Год журнала:
2024,
Номер
163, С. 111959 - 111959
Опубликована: Апрель 26, 2024
The
effective
utilization
of
urban
land
plays
a
significant
role
in
achieving
the
11th
goal
focuses
on
Sustainable
cities
and
communities.
China's
national
special
economic
parks
(NSEP)
have
undergone
remarkable
process
urbanization
over
past
40
years,
for
future
development
is
becoming
increasingly
scarce.
In
this
study,
convolutional
neural
network
with
attention
mechanisms
was
proposed
extracting
built-up
area
boundaries
NSEP;
Additionally,
use
efficiency
(ULUE)
estimated
by
combining
multi-source
nighttime
light
image
statistical
data
from
yearbooks.
Furthermore,
we
integrate
data-driven
model
predicting
ULUE.
empirical
research
involves
comprehensive
analysis
spatial
characteristics
expansion
using
Taylor
index
analysis.
This
study
reveals
following
findings:
①
Convolutional
Neural
Networks
based
can
achieve
high-precision
extraction
Kappa
value
exceeding
0.92;
②There
positive
correlation
between
brightness
imagery
GDP
secondary
tertiary
industries;
③
ULUE
exhibits
evident
dependence
scale;
④
density-nuclear
density
curve
features
peak
gradually
decreasing,
which
indicates
continuous
distribution
range
efficiency.
framework
aims
to
provide
support
scientific
management
sustainable
while
serving
as
reference
policy
formulation
planning.
