Land,
Год журнала:
2024,
Номер
13(4), С. 470 - 470
Опубликована: Апрель 7, 2024
The
scientific
and
reasonable
division
of
geographical
units
cultivated
land
reserve
resource
areas
is
an
important
foundation
for
comprehensive
consolidation
(CLC).
Saline–alkali
resource,
significant
ensuring
food
security.
This
paper
constructs
a
two-level
index
system
areas.
Kruskal
graph
theory
clustering
algorithm
was
used
to
divide
the
study
area
into
four
types
ecological
zones.
On
basis
zones,
further
divided
three
units.
Finally,
spatial
relationship
between
zoning
use
clarified,
classification
distribution
potential
determined
through
analysis
CLC
Da’an
City,
Jilin
province,
China,
selected
as
area.
results
this
show
following:
(1)
In
conservation
priority
are
concentrated
in
north,
development
central
southern
areas,
upgrade
adjustment
rebuilding
transition
(2)
trend
low
north
but
high
south
City.
proposes
framework
unit
delineation
method
saline–alkali-enriched
analyzes
layout
protection
demands
conclusions
will
provide
reference
Ecological Informatics,
Год журнала:
2024,
Номер
82, С. 102673 - 102673
Опубликована: Июнь 9, 2024
Regional
ecological
security
pattern
(ESP)
can
provide
the
basis
for
regional
territorial
spatial
planning
and
urban
protection.
Taking
Wuhan
metropolitan
area
as
study
area,
a
binary
logistic
regression
model
was
used
to
quantify
evolutionary
driving
forces
transformation
risk
of
land.
An
identification
framework
source
based
on
"quality-risk-demand"
constructed
identify
by
calculating
land
comprehensive
value
from
three
aspects
quality,
degradation
risk,
human
demand.
The
resistance
surface
calculated
according
land-use
type
nighttime
light
data,
further
using
circuit
theory
range
its
key
areas
corridors,
specific
ESP
their
priority
area.
results
showed
sources
were
382.4
km2,
accounting
17.3%
corridors
in
terrestrial
ecosystem
(TEC)
14.38
with
an
average
width
77.8
m,
including
4.99
km2
pinch
points
3.71
barriers,
indicating
poor
actual
connectivity
TEC.
Ecological
aquatic
(AEC)
107.67
km
long,
57.86
14.24
substitutability
AEC.
Overall,
"three
horizontals,
verticals,
four
clusters"
identified,
where
sources,
barriers
protection
restoration
constructing
it.
Existing
spaces
within
range,
corridor
highly
consistent
situation,
verifying
significance
framework.
This
focuses
needs
residents,
combining
intrinsic
quality
extrinsic
risks
land,
proposes
integrated
identifying
identifies
theory,
attempts
quantitative
case
reference
construction
other
areas.
Ecological Informatics,
Год журнала:
2024,
Номер
81, С. 102609 - 102609
Опубликована: Апрель 21, 2024
The
ecological
network
as
the
cornerstone
of
urban
security
protection,
understanding
interaction
between
and
construction
land
spatial
development
intensity
(CLSDI),
which
is
crucial
for
guiding
orderly
utilization
territorial
space
promoting
regional
sustainable
development.
However,
information
on
complex
temporal
interactions
networks
CLSDI
has
not
yet
been
adequately
studied.
This
study
takes
main
area
Jinan
City
an
example,
explores
coupling
relationship
change
rule
during
2006–2018
through
multiple
buffer
analysis
tools,
proposes
optimization
path
under
perspective
network.
results
showed
that:
from
2006
to
2018,
there
a
significant
effect
elements;
within
zone
300–3000
m
sources
nodes,
rises
with
increase
distance;
while
corridor
exhibits
decreased
500-m
zone,
500–3000-m
tends
increase.
Based
empirical
analysis,
proposed
three
aspects:
source,
node.
300
control
range
source
designated
"specific
protection
zone",
strictly
zone;
set
up
differential
zoning,
activity
types
are
controlled
in
hierarchical
classified
manner;
CLDSI
around
nodes
order
prevent
encroachment
activities
nodes.
provides
reference
value
constructing
pattern
coordinated
construction.
Ecological Informatics,
Год журнала:
2024,
Номер
82, С. 102748 - 102748
Опубликована: Июль 30, 2024
With
the
acceleration
of
urbanization
and
industrialization,
land-use
mode
in
mountainous
areas
has
changed
significantly,
causing
serious
ecological
destruction.
Therefore,
improving
efficiency
land-resource
use
enhancing
protection
are
important
issues.
This
study
focuses
on
typical
Guizhou
Province
to
explore
their
significance
not
only
for
restoration
but
also
sustainable
socioeconomic
development.
In
this
study,
we
integrated
framework
interaction
between
transitions
landscape
patterns
employed
Spearman's
rank
correlation
coefficient
a
spatial
bivariate
model
reveal
spatiotemporal
heterogeneity
transitions.
The
results
showed
that
1990–2020,
cultivated,
forest,
grassland
decreased
by
−1353.66,
−749.98
−
541.72
km2
respectively,
whereas
water
area,
urban,
other
construction
land
increased
799.69,
542.62,
1230.90
km2,
respectively.
Moreover,
cultivated
converted
into
urban
were
358.03
661.77
forest
3550.08
277.32
Different
presented
rapid
expansion
contraction
characteristics,
resulting
an
increase
overall
patch
fragmentation,
decrease
uniformity,
irregular
patches,
which
enhanced
diversity
complexity.
Finally,
transition
effects
primarily
elevation,
slope,
primary
road
facility
factors.
In-depth
research
transitional
evolution
its
impact
theoretical
practical
value
formulating
land-management
policies
promoting
development
areas.
Ecological Informatics,
Год журнала:
2024,
Номер
82, С. 102749 - 102749
Опубликована: Июль 30, 2024
The
standardization
of
river
system
structures
has
reduced
hydrological
connectivity,
exerting
significant
pressure
on
both
ecology
and
urban
development.
precise
diagnosis
proposal
optimization
strategies
remain
key
challenges.
This
study
utilizes
graph
theory
to
delineate
the
network
topology
in
Chengdu
city
establishes
an
evaluation
index
(α,
β,
γ)
for
connectivity.
Spatiotemporal
changes
Chengdu's
connectivity
from
2000
2020
are
analyzed,
alongside
a
validated
scheme
focusing
"pressure
dispersion"
among
nodes.
findings
reveal
simplification
structure
over
past
two
decades,
marked
by
reduction
72
nodes
81
segments.
Particularly
center
(region
II),
these
have
significantly
diminished
overall
Following
implementation
method,
distribution
critical
Region
II
been
more
equitably,
enhancing
resilience
against
disasters
like
floods
diversifying
burden
Furthermore,
indices
showed
improvements
post-optimization,
with
α,
γ
rising
75%,
7.26%,
respectively,
thereby
validating
efficacy
approach.
Analyzing
variations
parameters
across
systems
identifies
vulnerable
links
fundamental
issues,
laying
groundwork
future
improvements.
proposed
methodology
offers
insights
applicable
cities
worldwide
grappling
similar
