Land,
Год журнала:
2024,
Номер
13(11), С. 1755 - 1755
Опубликована: Окт. 25, 2024
Rapid
urbanization
has
affected
ecosystem
stability,
and
the
construction
of
ecological
security
patterns
(ESPs)
can
rationally
allocate
resources
achieve
protection.
Priority
evaluation
critical
areas
maximize
benefits
protection,
which
is
crucial
for
sustainable
urban
development.
However,
most
prior
studies
have
focused
on
assessing
individual
elements
ESP,
rarely
considering
both
protection
priority
sources
corridors.
We
constructed
ESPs
Wuhan
Metropolitan
Area
(WMA)
from
2000
to
2020
evaluated
corridors
The
findings
indicated
that
high-level
exhibited
higher
overall
landscape
connectivity
service
values
with
lower
patch
fragmentation.
average
area
proportions
primary,
secondary,
tertiary
in
2000,
2010,
were
41.11%,
23.03%,
29.86%,
respectively.
High-level
had
shorter
lengths
offered
comprehensive
values.
total
length
secondary
exceeded
primary
by
1951.19
km,
650.39
2238.18
km
2020,
Primary
corridors,
connected
fragmented
isolated
sources,
should
their
land
percentage
increased
enhance
connectivity.
Secondary
two
independent
distant
providing
basis
intervening
area,
whose
surrounding
habitats
be
protected.
This
study
identifies
offers
a
theoretical
practical
reference
balancing
development
Land Degradation and Development,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 13, 2025
ABSTRACT
Ecological
networks
(ENs)
are
vital
for
maintaining
regional
ecological
security
and
preserving
biodiversity.
While
various
methods
exist
constructing
ENs,
their
effectiveness
across
different
spatial
scales,
particularly
in
urban
agglomerations,
has
not
been
thoroughly
investigated.
This
study
focuses
on
the
Yangtze
River
Delta
agglomeration
(YRDUA),
ENs
at
three
scales:
agglomeration,
metropolitan
area,
city.
Two
were
employed
each
step,
outcomes
evaluated
ranked
using
specific
indicators.
The
results
indicate:
(1)
For
source
identification,
distribution
of
sources
identified
by
is
consistent
same
scale,
with
number
scales
being
around
600,
140,
160,
respectively.
(2)
resistance
surface
construction,
although
there
differences
between
two
methods,
final
value
shows
relatively
small
changes.
(3)
Regarding
corridors,
quantities
1470,
380,
410,
indicators,
α
values
0.71,
0.85,
0.81,
respectively;
β
2.42,
2.68,
2.61,
γ
0.90,
0.88,
Cr
0.80,
0.68,
Comparing
ranking
all
indicators
can
yield:
MSPA
method,
surfaces
constructed
Spatial
Principal
Component
Analysis
(SPCA),
corridors
extracted
Linkage
Mapper
yielded
optimal
results.
At
city
Analytical
Hierarchy
Process
(AHP),
Graphab
These
findings
provide
methodological
guidance
offer
new
insights
landscape
planning
multiple
levels.
Diversity,
Год журнала:
2024,
Номер
16(12), С. 779 - 779
Опубликована: Дек. 23, 2024
Constructing
an
ecological
security
pattern
in
ecologically
fragile
areas
is
crucial
for
maintaining
regional
stability.
This
study
focuses
on
the
Kunlun
Mountain
region,
identifying
sources
based
habitat
suitability
assessments
and
ecosystem
services.
An
resistance
evaluation
index
system
constructed,
considering
topography,
land
use,
quality.
The
minimum
cumulative
model
then
applied
to
identify
corridors,
with
exhibiting
higher
currents
designated
as
nodes.
By
integrating
spatial
characteristics
of
services,
established.
results
are
follows:
(1)
source
area
covers
approximately
11.30%
area.
(2)
length
corridors
21,111
km,
mainly
distributed
along
valleys,
gentle
slopes,
oasis
areas.
(3)
nodes
barriers
126.75
km2
46.75
km2,
respectively.
Ecological
both
sides
Mountains,
while
primarily
located
central
mountainous
Mountains.
(4)
findings
recommend
establishing
consisting
“2
horizontal
4
vertical
5
zones”
ensure
integration
services
constructing
a
provides
valuable
decision-making
tools
protecting
ecosystems
species
Sustainability,
Год журнала:
2024,
Номер
16(21), С. 9156 - 9156
Опубликована: Окт. 22, 2024
Our
aim
is
to
analyze
the
emergy
evaluation
indicators
of
agricultural
ecosystem
in
Dazhou,
northeastern
Sichuan,
and
provide
practical
effective
recommendations
for
sustainable
development.
Using
analysis,
inputs
outputs
an
from
2002
2022
were
calculated.
Five
selected
evaluation:
yield
ratio
(EYR),
self-sufficiency
(ESR),
input
(EIR),
environmental
load
(ELR),
indices
(ESI).
The
total
showed
upward
trend
2017,
thus
industrial
auxiliary
decreased,
somewhat
curbing
its
continued
rise
2017
2022.
structure
inputs,
descending
order,
as
follows:
>
organic
renewable
resources
non-renewable
resources.
output
was
highest
2007,
reaching
2.31
×
1022
Sej,
lowest
2012,
at
1.83
Sej.
outputs,
livestock
planting
fishery
forestry.
fluctuated
down
3.12
2.51,
with
average
2.88,
below
provincial
3.07.
0.30
0.26,
0.27,
above
0.13.
up
2.91,
2.66,
1.86.
3.8
4.75,
4.40,
which
higher
than
1.68.
0.81
0.53,
0.67,
1.17.
efficiency
resource
utilization
Dazhou
has
economic
have
increased,
it
a
consumptive
production
process.
pressure
on
local
natural
environment
increasing,
capacity
development
remains
low
level
over
long
term.
Land,
Год журнала:
2024,
Номер
13(11), С. 1755 - 1755
Опубликована: Окт. 25, 2024
Rapid
urbanization
has
affected
ecosystem
stability,
and
the
construction
of
ecological
security
patterns
(ESPs)
can
rationally
allocate
resources
achieve
protection.
Priority
evaluation
critical
areas
maximize
benefits
protection,
which
is
crucial
for
sustainable
urban
development.
However,
most
prior
studies
have
focused
on
assessing
individual
elements
ESP,
rarely
considering
both
protection
priority
sources
corridors.
We
constructed
ESPs
Wuhan
Metropolitan
Area
(WMA)
from
2000
to
2020
evaluated
corridors
The
findings
indicated
that
high-level
exhibited
higher
overall
landscape
connectivity
service
values
with
lower
patch
fragmentation.
average
area
proportions
primary,
secondary,
tertiary
in
2000,
2010,
were
41.11%,
23.03%,
29.86%,
respectively.
High-level
had
shorter
lengths
offered
comprehensive
values.
total
length
secondary
exceeded
primary
by
1951.19
km,
650.39
2238.18
km
2020,
Primary
corridors,
connected
fragmented
isolated
sources,
should
their
land
percentage
increased
enhance
connectivity.
Secondary
two
independent
distant
providing
basis
intervening
area,
whose
surrounding
habitats
be
protected.
This
study
identifies
offers
a
theoretical
practical
reference
balancing
development
