Impact of spatial correlation network structure on urban high-quality economic development: a case study of the Yangtze River Delta urban agglomeration
Environment Development and Sustainability,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 17, 2025
Язык: Английский
Provincial Coal Flow Efficiency of China Quantified by Three-Stage Data-Envelopment Analysis
Sustainability,
Год журнала:
2024,
Номер
16(11), С. 4414 - 4414
Опубликована: Май 23, 2024
The
exploration
of
regional
variations
in
coal
flow
efficiency
(CFE)
China
and
the
collaborative
strategies
for
emission
reduction
are
vital
accelerating
progress
ecological
civilization
within
industry
achieving
an
optimal
allocation
resources.
To
unveil
evolutionary
traits
actual
CFE
its
decomposition,
this
study
employs
a
current
technology
based
on
combined
super-efficient
measure
(SBM),
global
SBM,
stochastic
frontier
approach
(SFA),
Malmquist–Luenberger
index
(GML)
model
panel
data
from
2010
to
2021
across
30
provinces
China.
research
conclusions
as
follows.
First,
significant
gaps
observed
among
provinces,
showcasing
superior
performance
north
east
regions.
Moreover,
impact
environmental
factors
random
disruptions
individual
slack
variables
varies,
resulting
decrease
0.18
0.43
source-area
sink-area
when
these
not
taken
into
account.
Thirdly,
clear
distinction
emerges
between
technical
change
(EC)
best-practice
gap
(BPC).
Lastly,
displays
disparities
marked
by
upward
trajectory
fluctuating
patterns
resembling
“W”
shape.
Язык: Английский
Measurement and optimization paths of the multidimensional development levels of counties in the Yellow River Basin: based on the sustainable livelihoods framework
Frontiers in Environmental Science,
Год журнала:
2024,
Номер
12
Опубликована: Дек. 18, 2024
The
Yellow
River
Basin
(YRB)
faces
intense
man-land
conflicts.
However,
existing
studies
rarely
focus
on
the
comprehensive
and
multidimensional
development
levels
in
YRB,
there
is
a
lack
of
refined
county-level
studies,
making
it
difficult
to
fully
support
implementation
ecological
protection
high-quality
strategy
YRB.
Under
Sustainable
Livelihoods
Framework,
spatial
distribution,
differences,
correlation
characteristics
counties
YRB
are
disclosed.
This
achieved
by
comprehensively
utilizing
geospatial,
socio-economic,
other
multi-source
data
combination
with
methods
such
as
entropy
weight
method,
Theil
index,
analysis.
Optimal
paths
proposed
types
counties.
findings
follows:
(1)
Counties
have
low
overall
level,
presenting
distribution
pattern
“high
east
west”
overall.
In
terms
each
dimension,
average
value
ranking
lower
reach
>
middle
upper
observed
dimension;
exception
financial
dimension
(with
reach).
(2)
Differences
between
indices
vary
across
different
dimensions.
differences
(except
for
natural
dimension)
mainly
attributable
within
reach.
reaches
non-significant.
(3)
their
show
strong
correlation.
And
significant
identified
LL-type
(clusters
areas)
HH-type
high
areas).
(4)
Depending
measurement
results
advantageous
factors
county
classified
into
four
types:
weak
type,
single-dimension-led
potential
coordinated
type.
Based
this
classification,
targeted
optimal
specific
types.
research
can
provide
effective
scientific
Язык: Английский