The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
957, P. 177565 - 177565
Published: Nov. 27, 2024
The
disparity
in
scale,
complexity,
and
control
level
between
laboratory
experiments
field
observational
studies
has
shaped
both
the
methodologies
employed
nature
of
research
questions
pursued
ecology
hydrology.
While
lysimeters
fabricated
ecosystems
suitably
fit
this
gap,
their
use
as
mesoscale
experimental
facilities
not
been
fully
explored
because
limited
manipulating
capabilities
integration
with
imaging
monitoring
methods,
particularly
for
soil
functioning.
proposed
ecosystem
(4.7
L
×
1.2
W
H
m)
focuses
on
spatiotemporal
point
sensors
methods
along
soil-plant-atmosphere
continuum.
Because
energy
water
fluxes
are
key
environmental
drivers,
designed
setup
was
first
applied
to
a
multi-approach
evapotranspiration
investigation.
Below
ground,
electrical
resistivity
tomography
(ERT)
combined
distributed
temperature
profiling
system.
Together,
they
provided
3D
changes,
thus
an
estimation
evapotranspiration,
well
interpretation
its
below-ground
controlling
processes.
Above-ground
supported
classical
balance
investigation
that
compared
lysimeter
load
changes
ERT-based
ET
estimation.
Our
results
provide
evidence
variability
at
explain
discrepancies
among
three
estimated
time
series
seasonality.
Beyond
emphasizes
how
setups
can
further
support
development
upscaling
models,
application
under
expected
climate
disturbances.
Abstract
The
analysis
of
the
stable
isotopic
composition
hydrogen
and
oxygen
in
water
samples
from
soils
plants
can
help
to
identify
sources
vegetation
uptake.
This
approach
requires
that
heterogeneous
nature
plant
soil
matrices
is
carefully
accounted
for
during
experimental
design,
sample
collection,
extraction
analyses.
comparability
shortcomings
different
methods
extracting
analyzing
have
been
discussed
specialized
literature.
Yet,
despite
insightful
comparisons
benchmarking
methodologies
laboratories
worldwide,
community
still
lacks
a
roadmap
guide
extraction,
analyses,
many
practical
issues
potential
users
remain
unresolved:
example,
which
(soil
or
plant)
pool(s)
does
extracted
represent?
These
constitute
hurdle
implementation
by
newcomers.
Here,
we
summarize
discussions
led
framework
COST
Action
WATSON
(“WATer
isotopeS
critical
zONe:
groundwater
recharge
transpiration”—CA19120).
We
provide
guidelines
(1)
sampling
material
analysis,
(2)
laboratory
situ
(3)
measurements
composition.
highlight
importance
considering
process
chain
as
whole,
design
minimize
biased
estimates
relative
contribution
conclude
acknowledging
some
limitations
this
methodology
advice
on
collection
key
environmental
parameters
prior
article
categorized
under:
Science
Water
>
Hydrological
Processes
Environmental
Change
Extremes
Vadose Zone Journal,
Journal Year:
2025,
Volume and Issue:
24(1)
Published: Jan. 1, 2025
Abstract
Stemflow
is
a
key
process
in
forested
catchments
due
to
its
control
on
soil
water
content
and
nutrients’
transport.
However,
there
are
still
few
studies
focusing
stemflow
infiltration
relying
direct
observations
that
minimally
invasive
repeatable.
In
this
study,
we
exploited
the
usefulness
of
stable
isotopes
hydrogen
oxygen,
as
well
time‐lapse
electrical
resistivity
tomography
(ERT)
investigate
fluxes
soil.
Specifically,
aimed
examine
effectiveness
both
ERT
trace
for
beech
tree
steep
hillslope
Italian
pre‐Alps,
quantify
area
based
two
methodologies
provide
recommendations
future
research.
Results
showed
approaches
identified
an
along
maximum
slope
gradient
with
most
staying
upper
45
cm
The
analysis
variations
enabled
evaluate
temporal
dynamics
estimate
average
0.64
m
2
,
which
was
larger
than
values
found
by
previous
dye
tracers.
This
high
may
be
multiple
factors,
from
conditions
methodological
uncertainties.
Conversely,
estimation
affected
sampling
area.
Hence,
research
isotopic
tracers
needs
consider
methods
providing
field
evidence
(e.g.,
tracers)
or
quick
inspection
raw
data
ERT)
inform
design.
Hydrological Processes,
Journal Year:
2024,
Volume and Issue:
38(3)
Published: March 1, 2024
Abstract
Understanding
plant
water
use
patterns
is
crucial
for
comprehending
the
dynamics
of
soil–plant‐atmosphere
continuum
and
evaluating
adaptability
plants
across
diverse
ecosystems.
However,
there
remains
a
gap
in
our
comprehension
non‐halophyte
plants'
uptake
driving
factors
temperate
coastal
regions.
For
this
reason,
we
used
locust
trees
(a
widely
planted
tree
species
northern
China)
as
study
subject.
We
collected
isotope
data
(δ
2
H
δ
18
O)
xylem
soil
over
two
consecutive
growing
seasons.
The
MixSIAR
model
was
along
with
five
distinct
sets
input
(single
isotopes,
uncorrected
dual
corrected
isotopes
incorporating
obtained
by
line
or
cryogenic
vacuum
distillation
methods)
to
infer
utilization
patterns.
results
indicated
that
primarily
absorb
shallow
(0–20
cm,
29.4%
±
16.9%)
deep
(120–180
24.7%
5.8%).
Pearson's
correlation
analysis
revealed
key
behind
were
vegetation
transpiration
salinity.
Remarkably,
build
up
salts
lower
layer
(60–120
cm)
hinders
absorption
plants.
To
prevent
high
salt
concentrations
from
affecting
plants,
recommend
implementing
sufficient
irrigation
March
April
each
year
meet
needs
growth
regulate
accumulation
various
layers.
This
reveals
dynamic
strategy
regions,
offering
valuable
information
resources
management.
Water Resources Research,
Journal Year:
2024,
Volume and Issue:
60(10)
Published: Oct. 1, 2024
Abstract
Continuous
and
extended
observations
of
hydrometeorological
parameters,
alongside
the
analysis
isotopic
composition
across
diverse
waters
within
catchments,
can
significantly
enhance
our
understanding
potential
ramifications
climate
change
on
hydrological
response.
In
this
study,
a
comprehensive
data
was
conducted
over
10
years
(October
2012–September
2022)
small,
forested
catchment
in
Italian
pre‐Alps,
aiming
to
investigate
impacts
short‐term
climatic
changes
young
water
fraction
(F
yw
).
The
results
showed
that
experienced
conditions
with
rapid
warming
drying
trends.
Significant
enrichments
were
observed
all
sampled
sources,
driven
primarily
by
air
temperature.
F
estimated
be
0.64
±
0.06,
0.45
0.07,
0.16
0.03
for
stream
water,
soil
shallow
groundwater
based
whole‐period
sinusoidal
fittings,
respectively.
Comparative
analyses
comprising
different
approaches
estimation
time‐windows
scenarios
detrending
corrections
yielded
smaller
than
fitting
discharge‐sensitivity
modeling.
Such
differences
attributed
an
uneven
temporal
distribution
data,
difficulties
capturing
high
flows
humid
characterized
fast
runoff
response
during
rainfall‐runoff
events,
presence
Our
findings
underscore
imperative
integrating
interannual
trends
adopting
appropriate
sampling
strategy
methodological
ensure
robust
estimation.
