Water,
Journal Year:
2024,
Volume and Issue:
17(1), P. 48 - 48
Published: Dec. 28, 2024
Recently,
frequent
water
shortages
and
reductions
in
flow
have
been
observed
the
northern
segment
of
Yellow
River
within
Beijing–Hangzhou
Grand
Canal.
In
response,
a
replenishment
program
has
initiated.
This
study
is
focused
on
section
Canal
north
uses
GSFLOW
model
to
examine
interaction
between
surface
groundwater,
as
well
effect
replenishment.
The
results
indicate
that,
after
replenishment,
efficiency
was
highest
Xiao
(64.30%),
followed
by
Wei
(39.09%),
South
(12.11%),
North
Canal,
which
exhibited
lowest
(5.75%).
variation
can
be
attributed
greater
loss
with
increasing
distance
from
source,
leading
lower
efficiency.
Surface
recharge
groundwater
extended
32
days,
effects
persisting
even
supply
ceased.
maximum
influence
either
side
canal
reached
5.73
km,
an
average
impact
1.48
resulting
total
affected
area
974.7
km2,
accounting
for
2.2%
area.
Water
positively
influenced
recovery
levels
along
Water Resources Research,
Journal Year:
2025,
Volume and Issue:
61(4)
Published: April 1, 2025
Abstract
Poyang
Lake,
the
largest
freshwater
lake
in
China
and
a
globally
significant
wetland,
is
intricately
connected
to
hydrological
dynamics
of
Yangtze
River
via
complex
river‐lake
exchange
system.
This
system
generates
unique
seasonal
fluctuations,
forming
distinctive
system,
which
influences
hydrodynamic
processes
across
floodplains.
Recent
years
have
witnessed
alterations
patterns
River,
notably
water
levels,
thereby
impacting
nutrient
such
as
nitrogen
transformation
at
sediment‐water
interface
Lake.
study
establishes
coupled
model
integrating
hydrodynamics
elucidate
impacts
regime
on
Lake
after
operation
Three
Gorges
Dam.
Findings
reveal
spatiotemporal
variations
both
hydraulics
within
Notably,
recharge
rate
between
surface
groundwater
experiences
substantial
shift,
surpassing
60%.
Furthermore,
nitrification
escalates
by
28.5%,
denitrification
increases
21.3%
owing
pronounced
regime.
However,
this
intensified
does
not
translate
enhanced
efficiency,
efficiency
declines
72.3%
its
original
rate.
research
provides
theoretical
framework
for
understanding
ecological
environmental
human
interventions
highlights
implications
managing
other
floodplains
lakes
globally,
Amazon
Mekong
face
similar
challenges
ecosystem
health.
Journal of Hydrology Regional Studies,
Journal Year:
2024,
Volume and Issue:
53, P. 101832 - 101832
Published: May 22, 2024
The
Baiyangdian
Lake,
Xiong'an
New
Area
of
Hebei
Province,
China.
construction
water
transfer
projects
provides
feasible
measures
for
lake
space
and
ecology
restoration,
with
a
critical
issue
in
this
practice
being
how
to
efficiently
utilize
multiple
sources
replenishments
improve
the
quality
water-receiving
lakes.
This
study
developed
hydrodynamic
model
which
receives
from
upstream
reservoirs
within
its
basin
two
other
basins.
Simulation
scenarios
varied
proportions
receiving
these
were
set
up
model,
optimal
replenishment
scheme
best
improvement
was
determined.
multi-source
can
effectively
enhance
environment
lakes,
transported
basins
has
more
positive
effect
than
that
released
local
basin;
additionally,
found
be
improved
during
non-flood
seasons
compared
flood
seasons.
Under
preferred
scheme,
average
concentrations
ammonia,
total
nitrogen,
phosphorus
core
areas
all
decreased
by
10%.
However,
may
induce
divergence
indicators
aquatic
system
evolutions
making
fragmented.
proposes
further
exploit
benefits
while
mitigating
potential
risks
enhancing
hydrological
connectivity
integrating
monitoring
mathematical
modeling.
