Minerals,
Journal Year:
2023,
Volume and Issue:
13(12), P. 1556 - 1556
Published: Dec. 18, 2023
The
aeolian
sand-box
backfilling
method
proves
effective
for
environmentally
friendly
coal
extraction
in
northwestern
regions,
including
Xinjiang.
This
study
investigated
the
geomechanical
characteristics
of
backfill
material
and
its
control
effects
on
overlying
strata
through
indoor
experiments,
mechanical
analysis,
numerical
simulations.
Uniaxial
compression
tests
models
with
varying
mesh
sizes,
wire
diameters,
dimensions
revealed
that
larger
sizes
diameters
increased
bearing
capacity
material,
while
increasing
had
opposite
effect.
A
analysis
metal
box
deformation
produced
equations
describing
restraining
force.
Subsequent
experiments
simulations
different
consistently
demonstrated
material’s
properties,
stress-displacement
curves
closely
aligned.
3DEC5.2
software
highlighted
effectiveness
controlling
displacement
stress
variations
goaf
areas.
Notably,
smaller-sized
exhibited
a
more
pronounced
impact
development.
Water Resources Research,
Journal Year:
2025,
Volume and Issue:
61(2)
Published: Feb. 1, 2025
Abstract
Global
climate
change
has
altered
the
characteristics
of
conventional
drought
events,
with
an
increasing
number
Slow
droughts
(SD)
rapidly
transitioning
into
Flash
(FD).
This
study
introduces
a
novel
multi‐temporal
scale
identification
framework
(MTSDIF)
that
classifies
historical
agricultural
events
three
types:
SD,
FD,
and
Slow‐to‐Flash
Drought
(SFD).
Based
on
MTSDIF,
GLDAS‐Noah
root
zone
soil
moisture
dataset
was
used
to
analyze
spatiotemporal
characteristics,
evolution,
driving
factors
in
China.
Our
confirms
effectiveness
proposed
MTSDIF
classifying
different
onset
speeds
(SD,
SFD).
The
results
indicate
that,
from
1980
2020,
types
China
exhibited
short‐term,
medium‐term,
long‐term
periodic
oscillations.
Before
2000,
SD
were
predominant
type
China,
but
post‐2000,
areas
affected
by
FD
SFD
have
been
continuously
expanding.
Compared
key
meteorological
elements
influencing
show
anomalies
exceeding
0.5
times
standard
deviation.
In
southeastern
regions
human‐impacted
soils,
leached
incept
soils
exhibit
higher
response
frequency
FD.
Sea
surface
temperature
indices,
including
interannual
El
Niño‐Southern
Oscillation
Pacific
interdecadal
variations
such
as
+PDO
−AMO,
significantly
influence
occurrence
monsoon
(
p
<
0.01).
Together,
highlight
necessity
understanding
disparities
consistencies
land‐atmosphere‐ocean
mechanisms
behind
varying
speeds.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
926, P. 171901 - 171901
Published: March 22, 2024
Drought
displays
dynamic
and
uncertain
spatiotemporal
characteristics,
thus
it
is
typically
not
confined
to
fixed
temporal-spatial
boundaries.
Existing
drought
clustering
methods
often
involve
spatially
points
or
grids
into
patches,
subsequently
connected
over
time
form
three-dimensional
structures.
Despite
this
process
being
able
extract
clusters,
likely
overlook
mild
relatively
small,
isolated
patches.
To
overcome
limitation,
paper
presented
an
effective
method
(named
STD-CLUSTER)
for
identifying
clusters
with
complete
The
initially
employed
run
theory
events
as
"lines"
clustered
these
using
the
Density-Based
Spatial
Clustering
of
Applications
Noise
(DBSCAN)
algorithm.
A
case
study
on
2006
flash
in
Yangtze
River
Basin
demonstrated
that
STD-CLUSTER
successfully
ensured
integrity
by
considering
isolated,
disconnected
Additionally,
in-depth
analysis
examined
seasonal
China
from
1991
2022,
a
total
35
clusters.
These
began
ended
small-area
exhibiting
features
expansion,
contraction,
spread,
merging,
splitting
time.
Furthermore,
changes
significantly
influenced
evolution
affected
area
severity
increasing
spring
summer
decreasing
autumn
winter.
applicability
proposed
extends
beyond
various
geographical
regions
scales,
providing
support
comprehensively
investigating
drought.
Remote Sensing,
Journal Year:
2025,
Volume and Issue:
17(7), P. 1115 - 1115
Published: March 21, 2025
Analyzing
the
spatiotemporal
characteristics
of
meteorological
droughts
(MD)
and
agricultural
(AD)
their
propagation
in
different
climate
zones
is
important
for
effective
drought
management,
adaptation,
food
security.
This
study
takes
a
unique
approach
by
comparing
irrigated
rainfed
croplands.
A
comprehensive
framework
developed
using
indices,
statistical
analysis,
trend
tests,
wavelet
transforms.
The
evolution
patterns,
trends,
correlations
MD
AD
Xinjiang
Middle-lower
Yangtze
Plain
(MYP)
are
investigated.
main
results
showed
that
severe
events
(e.g.,
2005–2009
MYP
2004–2009)
significantly
impacted
systems,
leading
to
decline
vegetation
condition.
Long-term
irrigation
can
substantially
alleviate
under
conditions.
From
2000
2019,
on
croplands
continuously
improved,
while
deteriorated
during
events.
In
contrast,
although
overall
was
mitigated,
benefits
were
only
evident
periods
weakened
after
2013.
Correlation
analyses
revealed
mechanisms
between
croplands,
highlighting
key
role
local
conditions
spatial
heterogeneity
determining
efficiency.
findings
provide
guidance
optimizing
management
strategies,
planning,
sustainable
water
resource
management.
Ecological Indicators,
Journal Year:
2023,
Volume and Issue:
157, P. 111243 - 111243
Published: Nov. 16, 2023
Grassland,
as
highly
vulnerable
ecosystem,
requires
a
comprehensive
understanding
of
its
dynamics
and
response
patterns
to
climate
factors
in
change
challenges.
While
previous
research
has
primarily
centered
on
the
influence
interannual
variability
grassland
Net
Primary
Productivity
(NPP),
knowledge
impacts
seasonal
or
monthly
variations
annual
net
primary
productivity
(ANPP)
remains
limited.
This
study
investigated
climatic
drivers
NPP
Xinjiang's
Altay
region
from
2000
2022
using
Carnegie-Ames-Stanford
approach
(CASA)
model
random
forest
regression
model.
The
examined
significance
precipitation,
solar
radiation,
temperature,
soil
moisture,
snowmelt
water
at
three
temporal
scales.
results
revealed
following
key
findings:
(1)
Grassland
declined
significantly
2009
but
showed
gradual
increase
2022.
Spatially,
higher
values
were
observed
northern
lower
southern
region.
(2)
Precipitation
was
influential
factor
affecting
NPP,
followed
by
water.
In
determining
timing
ANPP,
June
played
critical
role
particularly
for
while
August
essential
radiation.
Moreover,
importance
had
bimodal
distribution,
with
peaks
April
October.
(3)
exhibited
diverse
nonlinear
spatial
heterogeneity
various
different
These
findings
highlight
considering
both
magnitude
local
conditions,
well
when
studying
dynamic
responses
predicting
future
impacts.
insights
enhance
comprehension
intricate
ecosystems
predictions
their
change.
Atmosphere,
Journal Year:
2024,
Volume and Issue:
15(7), P. 818 - 818
Published: July 8, 2024
Flash
drought
is
characterized
by
rapid
onset
and
short-duration
conditions
caused
a
combination
of
factors,
including
high
evaporation,
temperature,
prolonged
periods
little
to
no
precipitation,
leading
sudden
severe
decrease
in
soil
moisture
levels.
In
comparison
conventional
drought,
it
more
susceptible
the
effects
global
warming
has
potential
become
common
phenomenon
coming
years,
necessitating
further
research.
this
paper,
we
focused
on
flash
events,
specifically
forest
parts
northeastern
China
that
are
included
within
Greater
Khingan
Mountains
(GKM),
Lesser
(LKM),
Changbai
(CM),
using
daily
data
as
well
SPOT-
VEGETATION
NDVI
satellite
from
2000
2020
determined
their
impact
NDVI.
Our
major
findings
follows.
(1)
The
GKM
had
maximum
area
being
affected
events.
(2)
frequency
ranged
1
2
times,
whereas
total
duration
varied
between
20
55
days
over
study
21-year
period.
(3)
was
most
plant-growing
seasons.
(4)
events
negative
influence
contributes
deeper
understanding
dynamics
areas
northeast
for
monitoring,
prediction,
management
strategies
region.
