The
Loess
Plateau
area
has
the
highest
soil
and
water
losses
in
world.
Check
dams
are
widely
used
as
important
engineering
measure
for
conservation
small
watersheds
on
Plateau.
To
determine
check
dam
configuration
pattern
influence
runoff,
sediment
yield,
erosion
deposition
pattern.
An
artificial
rainfall
experiment
was
conducted
laboratory
using
Qiaogou
watershed
normal-scale
model
to
analyse
runoff
yield
characteristics
under
four
types
of
warping
configurations
(no
dam,
main
gully,
branch
double
dam).
research
results
revealed
concentrations
increased
with
experimental
duration
working
conditions.
Compared
no
condition,
construction
ditch
may
reduce
by
44.65%
concentration
51.67%,
while
can
32.47%
42.28%.
Further,
minimize
63.73%
75.16%,
respectively.
non-dam
construction,
maximum
gully
rill
erosion,
bank
slope
collapse
at
head,
raise
up
dam-controlled
base
level.
degree
Watershed
dam>branch
dam>main
dam>double
conditions;
opposite
true
situation.
Among
them,
amount
approximately
1:1
lowest
output
watershed.
a
significant
impact
patterns
These
provide
reference
designing
plateaus.
Groundwater for Sustainable Development,
Journal Year:
2024,
Volume and Issue:
26, P. 101262 - 101262
Published: June 29, 2024
Groundwater
supports
over
2.4
billion
people
across
the
globe
and
is
critical
to
food
security.
The
spatial
dynamics
of
groundwater
vary
from
place
place.
irregularity
resource
exploitation
recognized
in
drought-prone
areas,
putting
pressure
on
resource.
Hence,
accurate
potential
characterization
for
sustainable
development
management
groundwater,
particularly
environments.
Therefore,
this
study
aimed
at
utilizing
remote
sensing
satellite
data
geospatial-based
(analytical
hierarchy
process
(AHP)
frequency
ratio
(FR))
algorithms
characterize
zones
(GWPZs)
Keiskamma
Catchment
South
Africa.
Seven
(7)
selected
factors,
including
geology,
soil
type,
slope,
rainfall,
drainage
density,
lineament
land
use
cover,
were
assigned
weights
based
AHP
FR
algorithms.
validation
results
showed
that
model
performed
better
than
AHP,
with
area
under
curve
(AUC)
accuracies
62%
50%,
respectively.
Based
findings
study,
we
infer
more
reliable
when
characterizing
GWPZ.
Lastly,
GWPZ
maps
produced
will
be
beneficial
improving
efficient
planning,
strategies,
decision-making.
Land Degradation and Development,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 7, 2025
ABSTRACT
Conducting
a
comprehensive
investigation
into
the
interplay
between
runoff
and
sediment
discharge
in
dynamic
environment
is
essential
to
uphold
aquatic
ecosystems
promote
sustainable
regional
development
of
high
quality.
Initiated
since
1950s,
extensive
soil
water
conservation
projects
middle
reaches
Loess
Plateau,
China,
have
resulted
substantial
reduction
discharge.
This
has
prompted
alterations
dynamics
discharge,
impacting
frequency
their
interactions.
Analyzing
measured
data
from
Kuye
River
Basin
(Kuye
Basin)
Yellow
for
period
1956
2019,
this
study
investigates
evolving
patterns
Utilizing
Copula
function,
we
analyzed
joint
probability
distribution
characteristics
aiming
identify
factors
influencing
evolution
patterns.
The
findings
revealed
downward
trend
(
p
<
0.01)
both
monthly
annual
scales
Basin.
Additionally,
two
abrupt
changes
were
observed
1979
1996,
demonstrating
multi‐timescale
periodicity.
Based
on
mutation
points,
was
divided
three
phases:
P1
(1956–1978),
P2
(1979–1995),
P3
(1996–2019).
optimal
model
Clayton
P2,
while
P3,
shifts
Gumbel
Copula.
Over
transition
each
recurrence
experienced
significant
decrease,
asynchronous
abundance
encounters
at
different
design
frequencies
increased.
Human
activities,
such
as
measures,
influenced
variations
stages.
With
passage
time,
effectiveness
current
measures
approached
saturation,
resulting
cumulative
values
nearly
28
×
10
9
m
3
4.4
t
respectively.
These
research
lay
groundwork
deeper
comprehension
basin
contribute
formulation
effective
policies
erosion
control.
