Karst Water Resources in a Changing World: Review of Solute Transport Modeling Approaches
Reviews of Geophysics,
Journal Year:
2025,
Volume and Issue:
63(1)
Published: Feb. 14, 2025
Abstract
Karst
water
resources
are
valuable
freshwater
sources
for
around
10%
of
the
world's
population.
Nonetheless,
anthropogenic
impacts
and
global
changes
have
seriously
deteriorated
karst
quality
dependent
ecosystems.
Multiscale
karstic
heterogeneity—referring
to
spatial
variations
aquifer's
physical
chemical
characteristics
at
varying
scales—is
main
challenge
in
describing
flow
contaminant
transport
dynamics.
Solute
models
powerful
tools
represent
predict
spatiotemporal
behaviors
migration
resources.
By
enhancing
our
understanding
processes,
solute
enable
us
explore
contamination
risks
potential
outcomes
contamination‐related
issues
systems.
Because
that,
they
often
used
monitoring,
controlling,
managing
ecosystem
functioning.
This
paper
reviews
current
state
knowledge
on
modeling
processes
with
a
focus
single‐phase
transport.
unveiling
fundamental
challenges
underlying
successful
real‐world
application
models,
we
discuss
what
extent
how
can
handle
these
challenges.
further
deriving
key
afront
applications
systems,
we,
therefore,
provide
directions
ensure
reliable
dynamics
present
context
changes.
Language: Английский
Understanding Flow Transport in Dual‐Water‐Source Rivers: Enhancing Storage Selection Functions With Two‐Gamma Distributions
Anran Liao,
No information about this author
Tiantian Zhou,
No information about this author
Xianfang Song
No information about this author
et al.
Hydrological Processes,
Journal Year:
2025,
Volume and Issue:
39(4)
Published: April 1, 2025
ABSTRACT
Modelling
solute
transport
in
river
systems
using
the
Storage
Selection
(SAS)
function
presents
challenges
when
recharge
originates
from
two
distinct
water
sources:
a
point
reclaimed‐water
source
(perpendicular
to
gravity)
and
surface
rainfall
(parallel
gravity).
This
study
introduces
three
modifications
original
SAS
address
dual‐source
dynamics
reclaimed‐water‐source
reach:
(i)
incorporating
rainwater
into
reclaimed
flux
(
R
),
(ii)
introducing
mixing
process
represent
interactions
between
(Mix),
(iii)
modifying
two‐gamma‐distribution
(2GM)
model
better
capture
behaviour.
The
effects
of
these
were
evaluated
individually
combination.
Among
modifications,
2GM
achieved
highest
increase
Nash‐Sutcliffe
efficiency
coefficient
(NSE),
followed
by
then
Mix.
regulated
storage
volume,
thereby
influencing
outflow
δ
2
H
value
(i.e.,
objective
function),
making
it
most
effective
modification.
Combining
all
produced
best
performance,
improving
NSE
0.61
0.86.
However,
short‐term
fluctuations
due
morphology‐induced
stochastic
processes
not
captured
this
lumped
model.
optimal
indicated
that
storm
events
significantly
accelerated
(mixed
rainwater)
mobility.
One
day
after
rainfall,
53%
at
outlet
originated
event
water,
either
adjacent
sites
or
nearby
subsurface
flow.
Subsequent
flowed
out
gradually
very
slow
rate.
River
received
sustained
throughout
wet
period,
with
stagnating
storage,
except
for
occurring
1
post‐rainfall.
Special
attention
should
be
given
pollutants
carried
associated
aquatic
risks
during
periods
megacities.
provides
reference
flood
management
pollution
control.
Language: Английский
Karst water resources in a changing world: Review of solute transport modelling approaches
Authorea (Authorea),
Journal Year:
2024,
Volume and Issue:
unknown
Published: March 29, 2024
Karst
water
resources
are
valuable
freshwater
sources
for
around
10
%
of
the
world
population.
Nonetheless,
anthropogenic
factors
and
global
changes
have
been
seriously
deteriorating
karst
quality
dependent
ecosystems.
Solute
transport
models
powerful
tools
to
monitor,
control,
manage
ecosystem
functioning.
By
representing
predicting
spatiotemporal
behavior
solute
migration
in
systems,
enhance
our
understanding
about
processes,
thus
enabling
us
explore
contamination
risks
potential
outcomes.
This
paper
reviews
current
state
knowledge
on
modelling
processes
aquifers,
thereby
unveiling
fundamental
challenges
underlying
a
successful
modelling.
We
discuss
what
extent
ways
we
can
handle
these
derive
key
directions
reliable
systems
present
context
changes.
Language: Английский
Ecohydrological Dynamics and Temporal Water Origin in a European Mediterranean Vineyard
Ecohydrology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 2, 2024
ABSTRACT
Viticulture
is
an
essential
sector
in
agriculture
as
wine
production
plays
a
vital
role
the
socio‐economic
life
of
many
countries,
especially
Mediterranean
area.
Grapevines
are
valuable,
long‐lived
species
able
to
grow
hot
and
dry
regions.
We
currently
do
not
know
whether
rain‐fed
grapevines
entirely
rely
on
deep
soil
water
or
make
substantial
use
shallow
from
summer
precipitation
events.
Without
knowing
this,
we
poorly
understand
what
fraction
inputs
contributes
grapevine
transpiration.
This
has
implications
for
how
quantify
grapevine‐relevant
budgets
predicting
impacts
climate
change
grape
production.
investigated
vineyard
Chianti
region,
central
Italy.
During
growing
season
2021,
monitored
moisture
at
30‐
60‐cm
depth.
collected
over
250
samples
stable
isotope
analysis
rainfall,
soil,
plants.
Since
traditional
plant
sampling
problematic
grapevines,
shoots,
leaves,
condensed
leaf
transpiration
after
sealed
plastic
bags
were
wrapped
around
shoot.
these
alternative
reconstruct
isotopic
signal
xylem
infer
plant's
seasonal
origin
throughout
season.
The
revealed
that,
season,
received
disproportional
contributions
by
rain
that
had
fallen
winter,
even
when
compensating
Only
late
did
amounts
whose
contribution
occasionally
became
dominant.
These
results
provide
better
understanding
ecohydrological
interactions
uptake
dynamics
valuable
agroecosystems
such
vineyards.
Language: Английский
Integrative modeling of POPs output flux from soil at a regional scale: A comprehensive approach
Environment International,
Journal Year:
2024,
Volume and Issue:
194, P. 109182 - 109182
Published: Dec. 1, 2024
Plot-scale
natural
attenuation
models
provide
valuable
insights
into
localized
pollutant
behavior
but
struggle
to
account
for
regional-scale
hydrological
processes.
Existing
research
has
predominantly
concentrated
on
single
processes,
lacking
comprehensive
describe
the
output
flux
of
persistent
organic
pollutants
(POPs)
by
transport
and
transformation
from
soil
at
a
regional
scale.
To
address
this
gap,
model
was
developed
combining
processes
(e.g.,
degradation,
volatilization,
plant
uptake)
with
leaching,
water
washout,
sediment
transport).
The
validated
using
data
petrochemical
area
in
China
compared
previous
(mass
balance
neural
networks
model)
assess
flux.
Results
indicated
that
washout
dominant
pathway
both
Phenanthrene
(Phe)
(94.67
%)
Benzo(a)pyrene
(BaP)
(98.33
%).
Phe
exhibited
broader
range
(0-67.8
mg∙m
Language: Английский