The Influence of Human Activities and Climate Change on the Spatiotemporal Variations of Eco-Environmental Quality in Shendong Mining Area, China from 1990 to 2023
Applied Sciences,
Journal Year:
2025,
Volume and Issue:
15(5), P. 2296 - 2296
Published: Feb. 21, 2025
The
Shendong
mining
area
is
the
largest
coal
production
base
in
western
China.
Due
to
long-term
activities,
ecological
environment
quality
(EEQ)
of
has
undergone
significant
changes.
Investigating
evolution
EEQ
during
process
mineral
resource
exploitation
great
importance
for
sustainable
development
area.
However,
current
research
lacks
a
quantitative
assessment
contributions
climate
change
and
human
activities
spatiotemporal
variations
In
this
study,
Remote
Sensing
Ecological
Index
(RSEI)
was
used
as
an
evaluation
metric.
Theil–Sen
slope
estimation
Mann–Kendall
test
were
applied
analyze
changes
from
1990
2023.
Additionally,
partial
derivative
method
investigate
response
characteristics
climatic
factors
quantify
relative
these
two
driving
factors.
results
indicate
that,
over
past
34
years,
overall
study
shown
improving
trend.
Compared
1990,
proportions
areas
with
good-grade
excellent-grade
2023
increased
by
28%
23.78%,
respectively.
second
phase
(2011–2023),
average
RSEI
time
series
value
significantly
compared
first
(1990–2010).
Among
factors,
annual
precipitation
had
greatest
impact
on
EEQ,
contribution
rate
0.085.
conversion
unused
land
forestland
improved
showing
very
increase
RSEI,
accounting
82.30%.
region
significant,
slight
increases
smaller
than
conclusion,
trend,
being
dominant
factor
71.52%
where
increased,
while
26.89%
decreased.
Language: Английский
ACO-TSSCD: An Optimized Deep Multimodal Temporal Semantic Segmentation Change Detection Approach for Monitoring Agricultural Land Conversion
Henggang Zhang,
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Kaiyue Luo,
No information about this author
Alim Samat
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et al.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(12), P. 2909 - 2909
Published: Dec. 5, 2024
With
the
acceleration
of
urbanization
in
agricultural
areas
and
continuous
changes
land-use
patterns,
transformation
land
presents
complexity
dynamism,
which
puts
higher
demands
on
precise
monitoring.
And
most
existing
monitoring
methods
are
constrained
by
limited
spatial
temporal
resolution,
high
computational
demands,
challenges
distinguishing
complex
cover
types.
These
limitations
hinder
their
ability
to
effectively
detect
rapid
subtle
use
changes,
particularly
experiencing
urban
expansion,
where
shortcomings
become
more
pronounced.
To
address
these
challenges,
this
study
a
multimodal
deep
learning
framework
using
semantic
segmentation
change
detection
(TSSCD)
model
optimized
with
ant
colony
optimization
(ACO)
analyze
conversion
Zhengzhou
City,
major
grain-producing
area
China.
This
utilizes
Landsat
7/8
imagery
Sentinel-2
satellite
from
2003
2023
capture
spatiotemporal
cropland
driven
infrastructure
development,
population
over
last
two
decades.
The
TSSCD
achieves
superior
classification
accuracy,
kappa
coefficient
improving
0.871
0.892,
F1
score
0.903
0.935,
0.848
0.879,
indicating
its
effectiveness
identifying
changes.
significant
variation
characteristics
City
were
revealed
through
model,
transformations
initially
concentrated
near
Zhengzhou’s
core
expanding
outward,
east
north.
results
highlight
remote
sensing
techniques
conversion.
Language: Английский