Mercator,
Journal Year:
2023,
Volume and Issue:
22(1)
Published: Jan. 30, 2023
The
biogeomorphic
role
of
vegetation
has
been
explored
in
different
contexts
with
advances
the
understanding
sedimentation
and
hydrodynamic
changes
channels
riparian
zones.However,
it
is
yet
to
be
better
established
regarding
their
small
earth-derived
canals
water
gullies,
development
these
issues,
canal
users.These
cases
present
some
ambiguity
based
on
presence
both
a
positive
filtering
negative
due
competition
for
resources.This
study
verified
whether
more
prominent
as
reducer
transport
suspended
sediments
along
artificial
channel
than
natural
river
system,
focusing
filter
sedimentary
load.We
monitored
scenario
terms
growth
by
gathering
statistically
related
data
discharge,
flow
velocity,
turbidity.Our
results
indicate
main
influence
since
was
element
system.The
vegetation,
functioning
sediment
rainy
season,
removed
dry
season
lower
flows
evapotranspiration.We
understand
that
should
addressed
part
management
process,
providing
users
favorable
turbidity
indices
risks
structures
breaking,
well
formation
extenders
fluvial
habitats
season.
Cold Regions Science and Technology,
Journal Year:
2024,
Volume and Issue:
221, P. 104172 - 104172
Published: March 11, 2024
During
winter,
ice
cover
frequently
forms
on
the
water
surface
of
rivers
with
vegetated
channel
beds
in
cold
regions.
The
investigation
impacts
both
and
bed
vegetation
flow
structures
around
bridge
abutments
is
essential
for
engineers
to
gain
a
comprehensive
understanding
complex
interactions
occurring
such
situation.
In
present
study,
structure
rectangular
abutment
presence
under
ice-covered
conditions
has
been
studied.
Considering
different
densities
by
arranging
elements
square
staggered
configurations,
this
study
incorporates
influence
covers
roughness,
namely
smooth
rough
cover.
Key
turbulence
parameters,
including
intensity,
Reynolds
shear
stress
(RSS),
turbulent
kinetic
energy
(TKE),
are
also
examined
based
laboratory
experiments.
Results
show
that
shape
velocity
profiles
over
changes
from
an
S-shaped
curve
open
condition
convex
conditions.
effects
create
unpredictable
intensity
patterns.
Under
rough-covered
condition,
there
appears
larger
area
negative
(RSS)
downstream
abutment.
Turbulent
(TKE)
substantially
lower
magnitudes
than
Water,
Journal Year:
2025,
Volume and Issue:
17(4), P. 480 - 480
Published: Feb. 8, 2025
River
ice
formation
during
the
winter
period
is
a
common
phenomenon
for
most
rivers
in
northern
hemisphere.
The
combined
effect
of
hydraulic,
thermodynamic,
and
geometric
boundary
conditions
results
highly
complex
system
when
compared
to
open
channel
conditions,
particularly
regard
cover
jams.
These
differences
have
considerable
impact
on
evolution
river
morphology,
sediment
transport,
stability
hydraulic
structures.
presence
jam
an
increase
roughness,
which
turn
changes
velocity
shear
stress
distribution
riverbed.
present
review
summarizes
current
state-of-the-art
research
ice,
including
field
observation,
experimental
study,
numerical
simulation.
Finally,
concludes
with
overview
state
field,
accompanied
by
analysis
challenges
that
remain
suggestions
future
directions.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: April 1, 2025
Abstract
This
study
investigates
the
influence
of
riparian
vegetation
on
energy
losses
in
open-channel
flow,
focusing
channels
partially
covered
by
mixed-height
patches,
a
common
feature
natural
rivers
and
canals.
While
previous
research
has
primarily
focused
flow
resistance
fully
vegetated
channels,
there
been
limited
attention
to
with
unevenly
distributed
patches.
To
address
this
gap,
we
developed
an
innovative
experimental
approach
evaluate
loss
patches
under
different
submergence
conditions.
The
setup
involved
channel
varying
heights,
mimicking
natural,
uneven
distribution
results
provided
key
insights
into
velocity
turbulence
intensity
these
Furthermore,
introduced
standardized
conceptualization
method
for
ratio,
specifically
concept
effective
height
(
$${h}_{e}$$
),
standardize
calculation
methods
submerged
emergent
vegetation.Using
parameter,
derived
theoretical
formula
calculating
caused
which
closely
matched
data.
offers
reliable
framework
hydraulic
distribution.
Water,
Journal Year:
2023,
Volume and Issue:
15(2), P. 277 - 277
Published: Jan. 9, 2023
Landslides
cause
fatalities,
widespread
damages
and
economic
losses.
Quite
frequently,
they
are
triggered
by
rainfall.
Many
studies
have
investigated
the
relationships
between
rainfall
characteristics
landslide
events.
This
paper
reviews
two
main
approaches,
physical
hydrological,
for
modelling
such
relationships.
In
approach,
influence
of
on
slope
stability
is
commonly
analysed
in
terms
groundwater
infiltration,
pore
pressure
changes
balance
shear
stresses
resistances,
therefore
a
considerable
amount
hydrogeological,
morphological
geotechnical
data
required.
hydrological
statistical-probabilistic
study
series
dates
occurrence
movements
instead
carried
out.
Both
types
methods
briefly
presented,
with
examples
from
real
applications
to
cases
Southern
Italy.
particular,
recent
reactivations
large
rockslide
Northern
Calabria
been
modelled
means
approaches.
addition,
shallow
landslides
Calabria,
Campania
Sicily
employing
Strengths
weaknesses
adopted
discussed,
together
causes
that
may
hindered
better
results
considered
cases.
For
illustrated
through
application
cases,
research
perspectives
as
well
their
possible
use
early
warning
systems.
Water,
Journal Year:
2023,
Volume and Issue:
15(1), P. 205 - 205
Published: Jan. 3, 2023
Pools
are
often
observed
in
gravel-bed
rivers,
together
with
the
presence
of
vegetation
patches.
In
present
study,
a
conceptual
model
gradual
varied
flow
both
convective
deceleration
and
acceleration
sections
has
been
constructed
flume
to
study
turbulent
structures.
Vegetation
patches
extended
canopies
were
planted
pool
order
increase
thickness
boundary
layer
inside
inner
zone.
The
effects
different
flows
(namely
decelerating,
uniform
accelerating
flows)
along
an
artificial
on
velocity,
shear
stress
bursting
events
have
investigated.
addition,
due
occurrence
secondary
currents
shallow
streams,
characteristics
investigated
two
axes
that
parallel
sidewall
flume.
results
showed
application
log
law
should
be
used
care
estimate
velocity
vegetated
bed.
patch
causes
Reynolds
stress,
especially
entrance
section
where
decelerates.
quadrant
analysis
reveal
sweep
ejection
most
dominant
influence
over
pool;
however,
contributions
outward
inward
near
bed,
is
decelerating.
distribution
stream-wise
RMS
turbulence
intensity
generally
presents
convex
shape.
Water,
Journal Year:
2023,
Volume and Issue:
15(18), P. 3173 - 3173
Published: Sept. 5, 2023
The
prediction
of
changes
in
velocity
distribution
and
channel
bed
morphology
is
significant
open
management
design.
This
paper
implements
experimental
work
to
realize
quantify
the
effect
rigid
aquatic
bank
weeds
on
vertical
profiles
morphology.
In
work,
were
given
a
staggered
using
three
distances
25,
50,
75
mm,
unilaterally
bilaterally,
with
Froude
numbers
ranging
from
0.11
0.30,
achieving
168
scenarios.
Results
for
tested
weed
cases
showed
that
average
was
directly
proportional
density
approached
number.
By
comparing
smooth
weeded
velocities,
it
found
inside
infested
reach
close
downstream
exceeded
upstream
by
about
10%
41%,
respectively.
Scour
depths
along
centerline
vegetated
bilateral
higher
11%
33%
than
those
unilateral
weeds.
maximum
observed
depth
scour
holes
30%
60%
at
middle
line.
Finally,
results,
multiple
regression
analysis
performed
develop
empirical
equations
assist
water
process.
Water,
Journal Year:
2024,
Volume and Issue:
16(19), P. 2759 - 2759
Published: Sept. 27, 2024
The
commercial
CFD
package
Fluent
and
the
Reynolds
stress
model
were
used
to
simulate
hydraulic
characteristics
with
three
types
of
vegetation
distribution:
longitudinal,
interlaced
patch.
Each
type
was
aggregated
middle
line
l
water
flow
in
an
equal
proportion
0.5,
resulting
a
total
nine
landscape
arrangements.
numerical
verified
showed
high
level
consistency
experimental
comparison;
results
indicate
following:
(1)
As
distribution
on
both
sides
becomes
increasingly
concentrated
from
loose
state
flow,
velocity
declines
maximum
rises,
greater
stress,
more
powerful
shear
layer,
contributing
turbulence,
generating
mass
momentum
exchange
enhancing
vertical
transport
momentum.
(2)
Compared
gap
area,
area
is
smaller,
turbulent
kinetic
energy
larger
bottom
larger;
sediment
particles
tend
deposit
while
smaller
sediments
area.
At
same
time,
prone
deposits
than
(3)
Under
density,
whether
test
or
wake
blocking
capacity
deposition
are
following
order:
patch
pattern
>
longitudinal
pattern.
Mercator,
Journal Year:
2023,
Volume and Issue:
22(2023), P. 1 - 21
Published: March 7, 2023
The
biogeomorphic
role
of
vegetation
has
been
explored
in
different
contexts
with
advances
the
understanding
sedimentation
and
hydrodynamic
changes
channels
riparian
zones.
However,
it
is
yet
to
be
better
established
regarding
their
small
earth-derived
canals
water
gullies,
development
these
issues,
canal
users.
These
cases
present
some
ambiguity
based
on
presence
both
a
positive
filtering
negative
due
competition
for
resources.
This
study
verified
whether
more
prominent
as
reducer
transport
suspended
sediments
along
artificial
channel
than
natural
river
system,
focusing
filter
sedimentary
load.
We
monitored
scenario
terms
growth
by
gathering
statistically
related
data
discharge,
flow
velocity,
turbidity.
Our
results
indicate
main
influence
since
was
element
system.
vegetation,
functioning
sediment
rainy
season,
removed
dry
season
lower
flows
evapotranspiration.
understand
that
should
addressed
part
management
process,
providing
users
favorable
turbidity
indices
risks
structures
breaking,
well
formation
extenders
fluvial
habitats
season.
Keywords:
Biogeomorphic
Succession;
Anthropogeomorphology;
Artificial
Open
Channels;
Sedimentation;
Hydrogeomorphology.
