Land,
Год журнала:
2022,
Номер
11(11), С. 1918 - 1918
Опубликована: Окт. 28, 2022
The
requisition–compensation
balance
of
farmland
(RCBF)
policy
proposes
that
all
requisitioned
for
development
must
be
compensated
with
new
farmland,
which
the
continued
implementation
in
economically
developed
counties
China
faces
great
challenges.
extent
to
a
potential
crop
production
can
achieved
merely
through
consolidation
has
important
theoretical
and
practical
significance.
This
study
measurement
procedures
investigate
this
degree
takes
seven
southeastern
coastal
as
examples
on
conduct
an
empirical
study.
results
show
following:
(1)
there
is
significant
negative
correlation
between
GDP
index
each
county,
is,
more
lower
achieve
balance;
(2)
increase
elevation,
possibility
increasing
shows
inverted
U-shaped
curve,
maximum
values
occurring
at
elevations
50
500
m
attention
should
paid
elevation
when
implementing
projects;
(3)
although
it
difficult
strike
consolidation,
compensate
loss
from
requisition
great,
reaching
than
40%,
plays
role
realizing
production;
(4)
difference
adequate
RCBF
adjustment.
Therefore,
proposed
approach
illustrated
clearly
reveals
relationship
compensation
by
implications
adjustment
China.
International Journal of Applied Earth Observation and Geoinformation,
Год журнала:
2023,
Номер
117, С. 103180 - 103180
Опубликована: Янв. 13, 2023
Building
change
detection
in
high-resolution
satellite
images
plays
a
special
role
urban
management
and
development.
Recently,
methods
for
building
have
been
greatly
improved
by
developing
deep
learning.
Although
learning
technologies,
especially
Siamese
convolutional
neural
networks,
successful
popular,
they
usually
problems
extracting
features
that
are
not
discriminative
enough
also
cause
the
loss
of
shape
details
at
edges.
To
address
these
problems,
dual-branch
network
parallel
spatial-channel
attention
mechanism
were
suggested
to
extract
spatial
spectral
dependencies
more
features.
The
unit
measured
rich
context
local
features,
distinction
between
changed
objects
backgrounds
was
increased
using
channel
module
adjusted
weight
channels
acted
as
selection
process.
Mixing
two
attentions
mode
made
practical,
useful
information
learned
robustly.
Moreover,
dual
function
proposed
which
edge-based
consistency
constraints
used
first
part
converge
edges
training
predicted
data.
weighted
binary
cross-entropy
added
second
function.
method
implemented
on
remote
sensing
datasets,
results
evaluated
with
state-of-the-art
methods.
With
model,
F1-score
2.43%
1.83%
respectively.
Abstract
The
slope
climbing
of
urban
land
expansion
(SE)
has
become
an
increasingly
prevalent
phenomenon,
and
it
resulted
in
unique
characteristics
terms
form,
landscape,
governance
with
challenges
for
sustainable
development
worldwide.
However,
relatively
little
concern
been
given
to
the
SE
a
long
time
series
On
basis
entities
extracted
from
Suomi
National
Polar‐Orbiting
Partnership
Visible
Infrared
Imaging
Radiometer
Suite‐like
(SNPP‐VIIRS‐like)
data,
we
attempted
quantify
evaluate
global
help
spectrum
analysis
different
scales
(e.g.,
global,
continental,
national,
city
scales)
during
period
2000–2020.
Our
study
proves
that
not
only
identify
physical
scopes
but
also
reflect
intensity
differences
socioeconomic
development,
which
can
provide
accurate
approach
SE.
We
found
increased
157,733
km
2
2000
470,632
2020,
representing
1.98‐fold
increase.
average
was
on
upward
trend,
0.85°
by
0.96°
increase
about
0.11°.
Asia,
Africa,
South
America
have
experienced
evident
process,
while
North
exhibited
slow
trend.
A
remarkable
phenomenon
China,
where
rapid
occurred
due
country's
unprecedented
urbanization
process.
change
value
upper
limit
index
volatile
growth
trend
at
scales.
suggests
should
take
into
considerations,
reasonable
policies
strategies
be
formulated
address
its
potential
impacts.
International Journal of Digital Earth,
Год журнала:
2024,
Номер
17(1)
Опубликована: Фев. 5, 2024
Hillside
urbanization
currently
provides
the
most
economical
solution
for
urban
expansion.
However,
limited
attention
was
paid
to
characteristics,
processes,
and
patterns
of
gradient
expansion
construction
land
(GEC)
in
mountainous
regions
its
impact
on
landscape
fragmentation.
This
study
suggests
an
approach
identify
GEC
quantify
spatial
fragmentation
cultivated
ecological
land.
The
results
are
as
follows:
(1)
can
be
categorized
'unidirectional',
'bidirectional',
or
'multidirectional'
expansion,
influenced
by
proportion
topography
different
directions
cities.
magnitude
is
correlated
with
city's
economic
level.
(2)
leads
increasing
trend
fragmentation,
nearly
a
three-fold
increase
arable
two-fold
within
focus
areas
over
20
years.
(3)
diminishes
distance,
primarily
influencing
3
km.
this
provide
methodological
reference
identifying
key
characteristics
GEC,
serve
theoretical
basis
reducing
risks
process
development
promoting
sustainable
development.
Atmospheric chemistry and physics,
Год журнала:
2025,
Номер
25(4), С. 2291 - 2309
Опубликована: Фев. 21, 2025
Abstract.
This
study
applies
a
mass-conserving
model-free
analytical
approach
to
daily
observations
on
grid-by-grid
basis
of
NO2
from
the
Tropospheric
Monitoring
Instrument
(TROPOMI)
rapidly
and
flexibly
quantify
changing
emerging
sources
NOx
emissions
at
high
spatial
temporal
resolution.
The
inverted
optimized
underlying
ranges
include
quantification
atmospheric
in
situ
processing,
transport,
physics.
results
are
presented
over
three
regions
China,
including
Shandong
Hubei,
which
urbanizing
not
frequently
addressed
global
literature.
day-to-day
found
be
1.96
±
0.27
µg
m−2
s−1
pixels
with
available
priori
values
(1.94
s−1),
while
1.22
0.63
extra
inventory
is
lower
than
0.3
s−1.
Source
attribution
based
thermodynamics
combustion
temperature,
processing
successfully
identifies
five
different
industrial
source
types.
Emissions
these
sites
adjacent
Yangtze
River
161.
68.9
Kt
yr−1
(163
%
higher
priori),
consistent
missing
light
medium
industries
located
along
river,
contradicting
previous
studies
attributing
water
as
emissions.
Finally,
reveal
an
uncertainty
larger
variability,
providing
quantitative
information
for
placement
future
monitoring
stations.
It
hoped
that
findings
will
drive
new
top-down
estimates,
quantified
updated
continuously
consistently
remotely
sensed
measurements
associated
uncertainties
actively
reflect
land-use
changes
misidentified
emissions,
quantifying
datasets
inform
bottom-up
community.
Remote Sensing,
Год журнала:
2022,
Номер
14(13), С. 3001 - 3001
Опубликована: Июнь 23, 2022
Water,
as
an
important
part
of
ecosystems,
is
also
topic
in
the
field
remote
sensing.
Shadows
and
dense
vegetation
negatively
affect
most
traditional
methods
used
to
extract
water
body
information
from
remotely
sensed
images.
As
a
result,
extracting
with
high
precision
wide
range
sensing
images
which
contain
complex
ground-based
objects
has
proved
difficult.
In
present
study,
method
for
imagery
considers
greenness
wetness
objects.
Ground
varied
content
coverage
have
different
characteristics
their
components
obtained
by
Tasseled
Cap
transformation
(TCT).
Multispectral
can
be
output
brightness,
greenness,
transformation,
widely
satellite
Hence,
model
was
constructed
weaken
influence
shadows
vegetation.
Jiangsu
Anhui
provinces
are
located
along
Yangtze
River,
China,
were
selected
research
area.
The
experiment
wide-field-of-view
(WFV)
sensor
onboard
Gaofen-1
acquire
photos.
results
showed
that
contours
spatial
extent
bodies
extracted
proposed
highly
consistent,
shadow
buildings
minimized;
Kappa
coefficient
(0.89),
overall
accuracy
(92.72%),
user
(88.04%).
Thus,
useful
updating
geographical
database
resource
management.
Ecological Indicators,
Год журнала:
2023,
Номер
157, С. 111214 - 111214
Опубликована: Ноя. 14, 2023
The
constant
conflict
between
the
rapidly
developing
socioeconomic
and
ecological
environment
within
Guangdong–Hong
Kong–Macao
Greater
Bay
Area
necessitates
exploration
of
ecosystem
vulnerability
patterns
driving
mechanisms.
A
comprehensive
social–economic–ecological
framework
is
proposed
to
assess
pattern
Area,
specifically
spanning
from
1990
2020.
Employing
geographic
detectors
weighting
methods,
study
quantifies
spatiotemporal
variation
underlying
mechanisms
in
area.
results
demonstrate
an
obvious
trend
index
(ESVI)
across
with
initial
decline
followed
by
gradual
increase
during
the1990–2020.
substantial
majority
region
(approximately
63.85%
total
area)
experienced
a
ESVI
2010.
Moreover,
spatial
distribution
this
exhibited
prevailing
east-to-west
pattern,
indicating
overall
southward
shift
over
time.
Furthermore,
was
primarily
concentrated
central
expanding
urban
areas
situated
on
both
sides
Pearl
River
estuary.
Encouragingly,
notable
amplification
observed
2010
2020,
which
attributed
development,
utilization,
protection
land,
forests,
water
bodies,
other
pertinent
factors
associated
expansion.
impact
climate
change
changes
exhibits
growing
magnitude
time,
while
human
activities
persist
as
predominant
driver
changes.
natural
exerted
upper
reaches
River,
included
topographic
relief,
precipitation,
network
density,
biological
abundance,
related
aspects.
Conversely,
pronounced
influence
predominantly
manifests
agglomeration
Delta.
Key
contributors
such
manifestation
encompass
land
types,
intensity
activities,
population
variables.
Changes
use
have
potential
induce
heightened
amelioration
practices
can
be
mitigated
reduced
employing
ESVI.
introduced
holds
extend
assessments
regions
similar
types.
It
expected
that
findings
derived
could
contribute
formulation
policy
recommendations
pertaining
management.
