Assessment of the vertical preferential flow characteristics and flow types on a slope in a small headwater catchment
Yi Du,
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Xiaoyan Wang,
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Zhe Nan
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et al.
Frontiers in Environmental Science,
Journal Year:
2025,
Volume and Issue:
13
Published: April 14, 2025
This
study
investigated
preferential
flow
infiltration
patterns
at
three
slope
positions
(upslope,
mid-slope
and
downslope)
of
typical
slopes
in
the
Miyun
Reservoir
Basin.
The
evaluation
was
conducted
by
combining
multi-index
method
macropore
classification
method,
based
on
profile
images
obtained
from
dye
tracer
experiments.
Multi-index
analysis
shows
that
depth
is
400
mm,
average
uniform
56.6
mm.
fraction
quantified
as
deviation
a
perfectly
homogeneous
process
up,
middle
down
are
56.6%,
74.8%
67.5%
respectively.
Middle
has
higher
level
due
to
weights
peak
value,
stained
area
stable
depth.
Macropore
results
indicate
positions,
mainly
with
mixed
interaction
soil
matrix.
It
one
five
types
its
proportion
increases
elevation
drops
(79.31%
upper,
86.88%
95.31%
lower
slope).
With
layer
increasing,
low-interaction
rises
matrix
decreases.
Correlation
reveals
low
negatively
correlates
volumetric
water
content,
porosity,
but
positively
bulk
density.
high
content.
Matrix
fingering
correlate
silt
significantly
saturated
hydraulic
conductivity.
difference
between
lies
scale.
Since
calculation
scale
encompasses
entire
treats
staining
characteristics
whole,
it
might
result
an
underestimation
outcomes.
On
other
hand,
considering
pixel
may
lead
overestimation
calculated
results.
Combining
these
two
methods
can
help
judge
more
accurately.
Language: Английский
The responses of soil erosion resistance to the farmland abandonment of bedding/inverse slopes in karst trough valley
Lisha Jiang,
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Xiaohong Tan,
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Yongqiu Xia
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et al.
Soil and Tillage Research,
Journal Year:
2025,
Volume and Issue:
252, P. 106577 - 106577
Published: April 15, 2025
Language: Английский
Impact of land use conversion patterns on vertical hydrological connectivity in intensive orchards
Yingni Du,
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Yujie Wei,
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Yundong Wang
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et al.
Soil and Tillage Research,
Journal Year:
2025,
Volume and Issue:
253, P. 106631 - 106631
Published: May 12, 2025
Language: Английский
Interpretation of Soil Characteristics and Preferential Water Flow in Different Forest Covers of Karst Areas of China
Xiaoqing Kan,
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Jinhua Cheng,
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Wengang Zheng
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et al.
Water,
Journal Year:
2024,
Volume and Issue:
16(16), P. 2319 - 2319
Published: Aug. 18, 2024
Soil
hydrology
seriously
affects
the
prevention
of
desertification
in
karst
areas.
However,
water
infiltration
different
soil
layers
secondary
forests
and
artificial
areas
remains
uncertain.
This
lack
clarity
is
also
factor
that
constrains
local
vegetation
restoration.
Therefore,
monitoring
simulating
priority
transport
moisture
will
help
us
understand
shallow
patterns
after
restoration
area,
providing
a
reference
for
more
scientific
ecological
environment
enhancement
carbon
storage
The
integration
physical
property
assessments,
computed
tomography
(CT)
scanning,
dye
tracing
studies,
HYDRUS-2D
modeling
was
utilized
to
evaluate
contrast
attributes
macropores
phenomenon
preferential
flow
across
various
forestland
categories.
approach
allowed
comprehensive
analysis
how
structure
movement
are
influenced
by
forest
ecosystems
head
simulations
(5
mm,
15
35
55
mm)
elucidate
dynamics
diverse
types
within
regions,
identify
causes
leakage
due
forests,
mechanisms
conservation
reduction
adopting
multifaceted
approach.
study
demonstrated
(1)
hydrological
capacity
plantation
20%
higher
than
natural
forest,
which
may
be
promoted
clay
content
distribution.
(2)
Afforestation-enhanced
soils
regions
demonstrate
significant
mitigate
loss
particles
during
episodes
then
improve
erosion
resistance
about
5
times,
can
effectively
control
area.
(3)
uniform
distribution
conducive
prevent
but
incapable
hindering
occurrence
flow.
had
very
developed
phenomenon,
deposition
occurred
with
an
increase
depth.
(4)
Moreover,
results
showed
matrix
depth
did
not
quantity.
Short-term
high-intensity
heavy
rainfall
events
facilitated
Infiltration
along
horizontal
vertical
directions
simultaneously.
These
could
facilitate
further
understanding
contribution
amelioration
areas,
provide
some
suggestions
sustainable
development
forestry
where
important
ingredient.
Language: Английский