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.
Journal of Geophysical Research Atmospheres,
Journal Year:
2025,
Volume and Issue:
130(3)
Published: Feb. 8, 2025
Abstract
The
Qaidam
Basin
in
the
Northeastern
Qinghai‐Xizang
Plateau,
characterized
by
its
numerous
salt
lakes
and
fragile
ecosystem,
is
increasingly
impacted
dust
emissions.
To
evaluate
impact
of
on
environment,
monthly
samples
were
collected
from
six
monitoring
stations
between
January
2020
March
2023
analyzed
for
deposition
flux
(DF),
mineral
composition,
water‐soluble
ions,
trace
elements,
carbonaceous
content.
study
used
backward
trajectory
modeling,
Pearson
correlation,
enrichment
factor
(EF)
analysis,
positive
matrix
factorization
(PMF)
to
quantify
lake
contributions
atmospheric
dust.
Results
revealed
that
halite
gypsum
content
ranged
0
47
wt%,
with
(SDF)
varying
2.54
g/m
2
·30d.
Key
soluble
ions
included
non‐playa
sulfate
(nps‐SO
4
2−
),
playa
chloride
(ps‐Cl
−
sodium
(ps‐Na
+
).
Trace
elements
such
as
iron,
aluminum,
silicon,
titanium
originated
both
natural
anthropogenic
sources.
organic
carbon
element
(OC/EC)
ratio
PMF
model
pointed
vehicle
emissions,
coal
combustion,
biomass
burning
major
pollution
sources,
particularly
urban
areas.
analysis
showed
contributed
5.23%–29.76%
total
mass,
aligning
changes
ion
As
region
a
key
source
river
systems,
salts
pose
risks
glaciers
freshwater
resources.
These
findings
highlight
substantial
inland
aerosols
arid
regions,
emphasizing
their
contribution
processes
significant
should
not
be
overlooked.
Forests,
Journal Year:
2024,
Volume and Issue:
15(3), P. 505 - 505
Published: March 8, 2024
The
Tarim
Basin
is
located
in
an
arid
inland
area;
the
ecological
environment
fragile,
and
it
extremely
sensitive
to
climate
change.
For
purpose
of
studying
dynamic
changes
vegetation
response
extreme
climate,
this
study
used
Vegetation
Ecological
Quality
Index
(EQI)
as
a
indicator
calculated
12
indices
using
Rclimdex.
Pearson
correlation
analysis
was
explore
relationship
between
EQI
values
various
at
both
inter-annual
intra-annual
scales.
Additionally,
geographic
detector
employed
examine
single
interactive
effects
on
for
different
types.
following
found:
(1)
During
2000–2022,
showed
upward
trend
Basin,
increase
agricultural
fastest.
(2)
Since
2000,
warm
temperature
have
risen,
whereas
cold
declined.
warming
rate
nighttime
temperatures
exceeds
that
daytime,
precipitation
rises
intensively.
Simultaneously,
continuous
dry
days
also
increased.
(3)
On
scale,
primarily
negatively
correlated
with
most
indices,
while
positively
indices.
there
obvious
regional
concentration
diurnal
range
(DTR)
daytimes
(TX10P)
inhibitory
promoting
areas
high
low
EQI,
respectively.
extremum
intensity
effect
inhibiting
EQI.
interaction
has
greater
impact
than
index,
especially
significant
forests
shrubs.
This
provides
reference
early
warning
meteorological
disasters,
ecosystem
protection,
sustainable
management
Basin.
Remote Sensing,
Journal Year:
2024,
Volume and Issue:
16(16), P. 3005 - 3005
Published: Aug. 16, 2024
The
long-term
atmospheric
mixing
layer
height
(MLH)
information
plays
an
important
role
in
air
quality
and
weather
forecasting.
However,
it
is
not
sufficient
to
study
the
characteristics
of
MLH
using
high
spatial
temporal
resolution
data
desert.
In
this
paper,
over
southern
edge
Taklimakan
Desert,
diurnal,
monthly,
seasonal
variations
daytime
(retrieved
by
coherent
Doppler
wind
lidar)
surface
meteorological
elements
(provided
local
station)
a
two-year
period
(from
July
2021
2023)
were
statistically
analyzed,
relationship
between
two
kinds
was
summarized.
It
found
that
diurnal
average
exhibits
unimodal
distribution,
decrease
rate
afternoon
much
higher
than
increase
before
noon.
From
monthly
perspective,
most
frequent
deep
(>4
km)
formed
June,
highest
spring
summer.
Finally,
terms
their
mutual
relationship,
observed
east-pathway
has
greater
impact
on
formation
west-pathway
wind;
dust
with
visibility
1–10
km
contributes
significantly
layer;
temperature
relative
humidity
also
exhibit
clear
trend
concentrated
distribution
at
about
3
km.
statistical
analysis
deepens
understanding
pollution
area,
which
great
significance
for
treatment
pollution.
