Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Апрель 23, 2025
Land
transformation
during
global
urbanization
has
led
to
a
sharp
decrease
in
farmland,
causing
not
only
food
security
issues
but
also
ecological
problems.
To
address
this
issue,
the
Chinese
government
implemented
Requisition-Compensation
Balance
Policy
for
Farmland
(RCBF)
1997.
This
policy
effectively
curbed
reduction
of
compensated
land
often
comes
from
mountainous
and
desert
areas,
leading
fragmentation
farmland
subsequent
issues.
The
balance
between
requisition
compensation
is
closely
related
security.
However,
current
research
on
occupation
mostly
based
area.
area
occupied
by
different
regions
inconsistent,
using
net
increase
or
represent
cannot
accurately
fairly
compare
degree
regions.
Therefore,
study
proposed
novel
index
measure
compensation-the
Requisition
Compensation
Index
(FOCI).
FOCI
can
transform
dimensional
expressions
that
into
dimensionless
expressions,
namely
scalars,
which
makes
it
possible
visually
each
region.
Then,
new
been
used
investigate
spatiotemporal
evolution
China
at
national
provincial
levels
over
past
30
years
(1990-2021),
as
well
impact
change
landscape
service
value.
results
indicate
(1)
shows
trend
first
decreasing
then
increasing
both
scales;
(2)
Provinces
with
are
mainly
concentrated
southeast
northwest
regions,
while
significant
decreases
observed
southwest
region,
indicating
shift
center
gravity
towards
southeast;
(3)
significantly
positively
correlated
spatially,
suggesting
provinces
higher
exhibit
fragmentation;
(4)
value
negatively
have
lower
values,
these
areas
region
China.
In
general,
advantage
eliminating
influence
could
be
reliable
alternative
evaluating
Environmental Research,
Год журнала:
2024,
Номер
252, С. 118982 - 118982
Опубликована: Апрель 30, 2024
The
surge
in
non-grain
production
on
farmland
(NGPF)
poses
significant
threats
to
food
security
and
land
sustainability,
particularly
hilly
regions.
However,
there
remains
a
lack
of
clarity
how
effectively
balance
grain
relation
remediation.
Using
Wannian
County
as
case
study,
we
investigated
the
evolution
this
by
leveraging
high-precision
surveys
satellite
imagery.
Through
application
bootstrapped
partial
linear
regression
models,
identified
key
influencers
behind
each
type
NGPF.
In
proposing
remediation
solutions,
integrated
results
NGPF
quality
evaluations
identify
mismatches
between
attributes
(i.e.,
topography,
geology,
soil,
use).
Our
findings
reveal
substantial
growth
NGPF,
expanding
from
3,838.72
ha
5,659.64
(2010-2020),
predominantly
occurring
with
favorable
natural
conditions
connected
locations
such
proximity
roads,
town
centers,
industrial
plants.
Surprisingly,
basic
protection
policy
shows
limited
effectiveness
curbing
except
for
garden
operations.
We
1,674
patches
suitable
conversion
provide
suggestions
tailored
low-quality
specific
barriers,
thus
complementing
demand
regional
production.
This
study
thereby
innovatively
proposes
nature-based
strategies
address
dilemma
tailoring
quality,
offering
valuable
insights
sustainable
management
China
beyond.
Land,
Год журнала:
2022,
Номер
11(7), С. 976 - 976
Опубликована: Июнь 26, 2022
Due
to
limited
land
resources,
it
is
necessary
balance
urban
economic
development
and
efficient
use.
Clarifying
the
relationship
between
two
crucial
improving
both
efficiency
use
efficiency.
Considering
undesirable
output
of
use,
this
paper
adopts
a
super
SBM
model
quantify
(ULUE)
Beijing–Tianjin–Hebei
(BTH)
region
from
1999
2019,
analyzes
ULUE
level
(EDL)
by
combining
Tapio
environmental
Kuznets
curve
(EKC)
model.
The
results
show
following:
(1)
During
study
period,
showed
fluctuating
upward
trend
on
temporal
scale,
with
lowest
highest
inflection
points
occurring
in
2002
2018,
respectively,
distribution
pattern
“high
southeast
low
northwest”
spatial
scale.
(2)
decoupling
EDL
repeated
fluctuations
coupling
states
but
overall
transition
state
state.
On
north
south,
there
were
strong
(SDS),
weak
(WDS),
(WDS)
order,
showing
regular
interval
repetition
pattern.
(3)
an
EKC
“U-shaped”
curve,
that
is,
decreases
first
then
increases
EDL.
can
provide
reference
for
coordinated
sustainable
BTH
region.
Remote Sensing,
Год журнала:
2023,
Номер
15(4), С. 1145 - 1145
Опубликована: Фев. 20, 2023
Knowledge
about
the
spatial-temporal
pattern
of
cropland
abandonment
is
premise
for
management
abandoned
croplands.
Traditional
mapping
approaches
croplands
usually
utilize
a
multi-date
classification-based
land
cover
change
trajectory.
It
requires
quality
training
samples
classification
at
each
epoch,
which
challenging
in
regions
smallholder
agriculture
absence
high-resolution
imagery.
Facing
these
challenges,
theoretical
model
proposed
to
recognize
based
on
post-abandonment
secondary
succession.
applies
continuous
detection
and
(CCDC)
temporal
segmentation
algorithm
Landsat
time
series
(1986~2021)
obtain
disjoint
segments,
representing
croplands’
status.
The
succession
showing
greening
trend
recognized
using
NDVI-based
harmonic
analysis,
so
as
capture
its
preceding
abandonment.
This
applied
mountainous
area
southwest
China,
where
abandonments
are
widespread.
Validation
stratified
random
referenced
by
vegetation
index
satellite
images
shows
that
detected
have
user
accuracy,
producer
accuracy
an
F1
score
ranging
from
43%
71%,
with
variation
among
year.
study
has
potential
extent
22,294
km2,
within
9252
km2
was
abandoned.
three
peak
years
were
1994,
2000,
2011.
suitable
be
large-scale
due
automatic
manner.
Geography and sustainability,
Год журнала:
2023,
Номер
4(4), С. 281 - 293
Опубликована: Июнь 27, 2023
The
redistribution
of
cropland
to
areas
higher
elevation
in
China
has
long
affected
agricultural
development
and
could
seriously
threaten
national
food
security.
However,
there
is
currently
little
research
reported
on
this
phenomenon,
which
may
limit
the
improvement
protection
policies.
To
fill
gap,
we
analyzed
spatiotemporal
characteristics
driving
mechanisms
increased
during
period
1980–2020.
average
by
17.38
m
from
1980
2020.
gravity
center
area
moved
northwest
81.00
km
51.47
km,
respectively.
amount
newly
added
eastern
was
less
than
that
occupied
regions;
however,
greater
cropland,
though
opposite
phenomenon
observed
western
China.
Slope,
temperature,
land-use
intensity,
population,
distance
main
roads
were
factors
affecting
elevation.
effects
these
major
exhibited
significant
spatial
temporal
variations
This
study
important
implications
for
improving
existing
policies
developing
more
effective
management
control
systems
Remote Sensing,
Год журнала:
2025,
Номер
17(3), С. 489 - 489
Опубликована: Янв. 30, 2025
The
degradation
of
ecosystem
services
(ES)
poses
a
significant
obstacle
to
regional
sustainable
development.
Land-use
change
is
widely
recognized
as
pivotal
factor
driving
the
spatio-temporal
dynamics
ES
supply
and
demand.
However,
future
impact
land-use
changes
on
supply–demand
risks
remains
largely
unknown.
To
fill
this
knowledge
gap,
we
conducted
study
in
Gansu
section
Yellow
River
Basin.
By
integrating
Cellular
Automata
(CA)
an
enhanced
Markov
model
within
GeoSOS-FLUS
framework,
dynamically
simulated
under
three
scenarios—the
Normal
Development
Scenario
(NDS),
Ecological
Protection
(EPS),
Rapid
Socio-economic
(RDS)—spanning
from
2020
2050.
Furthermore,
employed
InVEST
analyze
pattern
supply,
demand,
supply-to-demand
ratios,
for
water
provision,
carbon
storage,
soil
conservation
all
scenarios.
Firstly,
scenarios
project
increase
built-up
land,
primarily
unused
shrubland,
grassland,
cropland.
Forest
land
bodies
remain
stable.
Secondly,
provision
increases,
but
demand
grows
faster,
leading
imbalances,
with
high-risk
areas
north,
central,
east.
Soil
shows
balanced
north.
Carbon
storage
stable,
central
east
regions.
Thirdly,
scenarios,
particularly
scenario.
