Land Degradation and Development,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 20, 2025
ABSTRACT
Rapid
urbanization
has
resulted
in
increasingly
complex
and
diverse
farmland
landscape
patterns
mountainous
areas.
The
southern
margin
of
Sichuan
Basin,
noted
for
its
prominent
urban–rural‐nature
gradient,
serves
as
a
typical
area
analyzing
evolution.
In
this
study,
an
identification
system
was
developed
to
classify
identify
the
typology
evolution,
including
fallow
(FF),
abandonment
(FA),
loss
(FL),
reclamation
(FR).
Multiscale
geographically
weighted
regression
(MGWR)
employed
analyze
drivers
spatial
differentiation
mechanisms
results
revealed
following.
(1)
areas
FR
(45.39%),
FF
(29.62%),
FA
(21.81%)
region
were
relatively
large,
FL
(3.17%)
small.
Compared
with
2000–2010,
increased,
decreased
from
2010
2020.
(2)
FL,
FR,
FA,
presented
similar
during
two
periods.
showed
lower
fragmentation
lowland
plain
(LPA)
compared
mid‐high
(MHMA).
contrast,
had
higher
LPA,
while
greater
low
hilly
(LMHA);
(3)
pattern
evolution
exhibit
clear
urban‐rural‐nature
gradients.
From
LPA
MHMA,
dominant
typologies
are
sequentially
FF‐FA.
Concurrently,
primary
driving
factors
shift
socioeconomic
(urbanization
policies)
more
natural
(terrain
ecological
conservation).
This
study
proposes
integrated
framework
managing
regions,
considering
regional
policy
trade‐offs
synergies.
It
can
guide
sustainable
use
protection
farmland,
supporting
rural
revitalization
agroecological
sustainability.
CATENA,
Год журнала:
2023,
Номер
226, С. 107062 - 107062
Опубликована: Март 17, 2023
Mediterranean
mountains
are
sensitive
agroecosystems
that
have
suffered
intense
land
use
and
cover
changes
(LULCC)
during
the
last
century.
From
middle
of
twentieth
century,
most
cultivated
lands
in
were
abandoned,
allowing
recovery
vegetation
(through
natural
revegetation
afforestation
programmes).
To
examine
effects
farmland
abandonment,
secondary
succession
(natural
revegetation)
afforestation,
an
intensive
soil
sampling
was
carried
out
Araguás
catchment
(Central
Spanish
Pyrenees)
including
sparsely
vegetated
areas
(badlands),
grasslands,
shrublands
afforested
sites.
LULCC
mapped,
physico-chemical
properties
analysed
reference
sites
(unaltered
centuries)
different
uses.
Likewise,
organic
carbon
(SOC)
content
bulk
soils
fractions
separated
by
density
fractionation
been
studied.
This
study
evidenced
abandonment
led
to
a
mosaic
landscape
with
covers.
Results
show
significantly
affect
(soil
texture,
stoniness,
pH,
SOC,
total
carbon,
CorgN
ratio,
field
capacity).
Significant
differences
observed
between
following
abandonment.
Afforestation
triggered
higher
SOC
than
shrubland
(1.4
1.1%
respectively),
suggesting
slower
process
matter
accumulation
after
compared
afforestation.
The
significant
role
grassland
for
enhancing
has
also
confirmed.
results
showed
relative
contribution
each
fraction
SOC:
amount
labile
(free
occluded
fractions)
is
(58.1
51.2%
respectively)
(36.8%).
Understanding
on
dynamics
essential
when
planning
post-land
management
practices
The Crop Journal,
Год журнала:
2024,
Номер
12(1), С. 281 - 294
Опубликована: Янв. 9, 2024
Accurate
cropland
information
is
critical
for
agricultural
planning
and
production,
especially
in
food-stressed
countries
like
China.
Although
widely
used
medium-to-high-resolution
satellite-based
maps
have
been
developed
from
various
remotely
sensed
data
sources
over
the
past
few
decades,
considerable
discrepancies
exist
among
these
products
both
total
area
spatial
distribution
of
croplands,
impeding
further
applications
datasets.
The
factors
influencing
their
inconsistency
are
also
unknown.
In
this
study,
we
evaluated
consistency
accuracy
six
China
circa
2020,
including
three
state-of-the-art
10-m
(i.e.,
Google
Dynamic
World,
ESRI
Land
Cover,
ESA
WorldCover)
30-m
ones
GLC_FCS30,
GlobeLand
30,
CLCD).
We
investigated
effects
landscape
fragmentation,
climate,
management.
Validation
using
a
ground-truth
sample
revealed
that
10-m-resolution
WorldCover
provided
highest
(92.3%).
These
collectively
overestimated
Chinese
by
up
to
56%.
Up
37%
land
showed
maps,
concentrated
mainly
mountainous
regions
attributed
varying
fragmentation
management
practices
such
as
irrigation.
Our
work
shed
light
on
promotion
future
mapping
efforts,
highly
inconsistent
regions.
Ecological Indicators,
Год журнала:
2024,
Номер
160, С. 111802 - 111802
Опубликована: Фев. 27, 2024
Owing
to
rocky
desertification,
farmland
abandonment
in
karst
areas
is
different
from
that
normal
landforms.
Aiming
at
the
phenomenon
of
large-scale
region
Southwest
China,
this
study
investigated
characteristics
desertification
control
typical
counties.
We
interpreted
land
use
changes
area
using
high-resolution
images
(5
m)
2010
and
2020
through
human–computer
interaction.
After
removing
patches
converted
forests,
we
extracted
spatial
distribution
abandoned
farmland.
The
was
found
have
a
high
rate
(24.83
%),
with
dryland
showing
2–3
times
higher
than
paddy
fields.
accounts
for
50.57
%
(499.04
km2)
dryland.
It
worth
noting
non-rocky
lowest
(22.45
while
shows
no
significant
difference
among
other
grades,
an
average
28.00
%.
In
addition,
change
level,
index
degree
showed
trend
initial
increase
followed
by
decrease.
Slope,
lithology
soil
type
joint
effect
on
abandonment.
Slope
core
factor
affecting
abandonment,
interaction
between
slope
dominant
its
change.
results
show
serious
areas,
primarily
occurring
government
should
take
targeted
management
measures
based
current
status
drylands
levels
especially
sloping
areas.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 2, 2025
Effective
soil
organic
carbon
(SOC)
management
can
mitigate
the
impact
of
climate
warming.
However,
response
different
SOC
fractions
to
warming
in
abandoned
croplands
remains
unclear.
Here,
categorizing
into
particulate
and
mineral-associated
(POC
MAOC)
with
physical
fractionation,
we
investigate
responses
POC
MAOC
content
temperature
sensitivity
(Q10)
through
a
3-year
situ
experiment
(+1.6
°C)
across
12
sites
China
(latitude:
22.33–46.58°N).
Our
results
indicate
that
unchanged
while
significantly
increases
under
changes
are
mainly
influenced
by
root
biomass
microbial
necromass
changes,
respectively.
The
Q10
is
lower
than
regardless
or
control
treatment,
suggesting
represents
most
persistent
least
vulnerable
fraction
within
SOC.
Collectively,
sequestration
stable
be
enhanced
short-term
Natural
recovery
generally
benefits
accrual
croplands,
but
on
this
ecosystem
authors
showed
enhances
these
lands.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Янв. 21, 2025
Land
ecological
security
(LES)
is
crucial
for
human
well-being
and
sustainable
development,
especially
in
areas
like
the
Lower
Yellow
River
Flood
Plain
(LYRFP),
which
faces
flood
threats,
economic
challenges,
fragility.
This
study
introduces
a
"Quality-Structure-Function"
framework
evaluating
LYRFP's
LES,
incorporating
baselines
impacts
of
land
use
changes
on
comprehensive
assessment.
Using
Optimal
Parameter
Geographic
Detector
(OPGD)
model,
we
analyzed
agricultural,
industrial,
socio-economic
factors
as
potential
LES
drivers.
The
findings
indicate
gradual
improvement
over
past
two
decades,
with
spatial
variations—higher
upstream
estuarine
lower
middle.
Significant
enhancements
post-2010
were
observed
Shandong
Province,
unlike
modest
gains
Henan.
Spatial
heterogeneity
was
evident
across
floodplain
segments,
Jitai
Beach
witnessing
most
decline,
Dongying
improvement,
Zhengkai
largest
internal
disparities.
Economic
growth
reduced
agricultural
activities
positively
impacted
while
population
growth-related
contributed
to
its
decline.
suggested
safety
improvements
LYRFP
by
considering
spatiotemporal
influencing
regional
protection
development.