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.
Hydrological Processes,
Journal Year:
2024,
Volume and Issue:
38(5)
Published: May 1, 2024
Abstract
The
water
cycle
in
the
soil‐plant‐atmosphere
continuum
is
an
important
element
of
hydrological
and
ecological
studies,
differences
composition
characteristics
hydrogen
oxygen
stable
isotopes
different
bodies
can
indicate
cycling
processes.
In
this
study,
precipitation,
soil
plant
samples
had
been
collected
subalpine
scrubland
Qilian
Mountains
from
May
to
October
2019.
Craig‐Gordon
model,
isotopic
steady‐state
(ISS)
assumption,
Keeling
Plot
model
two‐source
mixing
were
used
analyse
isotope
compositions
bodies,
vapour
evaporation
transpiration
variation
evapotranspiration
SPAC
scrubland.
results
showed
that
(F
T
)
contributed
87.28%
86.95%
E
12.72%
13.05%
growing
season
on
semi‐sunny
semi‐shaded
aspects,
respectively,
indicating
mainly
came
plants.
early
(May–June),
due
rapid
expansion
leaves,
contribution
was
at
a
high
level,
which
intensified
led
gradual
increase
contribution.
middle
(July–August),
owing
better
conditions
rain
heat
made
plants
grow
vigorously,
highest
more
than
90%,
caused
overwhelming
evapotranspiration.
later
(September
October),
decreased
significantly
while
increased,
because
photosynthesis
respiration
gradually
declined
for
losing
their
leaves
scrub
relative
atmospheric
humidity
lower.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(11), P. 4740 - 4740
Published: June 2, 2024
Water
is
pivotal
for
human
societies’
sustainability
and
resilience.
Isotope
hydrology
hydrogeology
research
plays
an
important
role
in
understanding
managing
water
resources.
Reliable
scientific
results
hinge
on
high-quality
data.
Preventing
sample
evaporation
essential
accurate
isotopic
analysis.
In
this
study,
the
impacts
quality
of
data
were
tested
storage
samples
repetitive
opening
a
laboratory
reference
material
(LRM)
sub-sample
replica
during
daily
operation.
Twenty
15
mL
stored
high-density
polyethylene
(HDPE)
bottles
at
room
temperature
humidity
to
simulate
conditions.
One
60
was
collected
from
same
starting
batch
LRM
sub-sample.
Each
analysed
once
over
80
days
composition
oxygen
(δ18O)
hydrogen
(δ2H).
The
repeatedly
period.
identify
shifts
induced
by
evaporative
processes.
main
work
are
following:
(i)
did
not
cause
detectable
testing
period;
(ii)
δ18O
values
showed
evidence
as
proved
positive
shift
data;
(iii)
evaporation;
(iv)
five
openings
can
already
enrichment.
Careful
manipulation
frequent
replacement
thus
necessary
prevent
deterioration
analyses.
Forests,
Journal Year:
2024,
Volume and Issue:
15(3), P. 420 - 420
Published: Feb. 22, 2024
Stable
isotopes
of
water
(δ2H
and
δ18O)
are
reliable
tracers
for
the
investigation
plant–soil–water
interactions
in
forest
ecosystems.
However,
variations
isotopic
compositions
may
arise
due
to
differences
analytical
instruments
extraction
methods.
In
this
study,
we
conducted
three
different
experiments
identify
caused
by
methodological
variations.
First,
analyzed
soil
using
two
most
commonly
applied
methods:
isotope
ratio
mass
spectrometry
(IRMS)
cavity
ring-down
spectroscopy
(CRDS).
Second,
compared
xylem
extracted
from
stems
nine
tree
species
cryogenic
vacuum
distillation
(CVD)
with
heating
times.
Third,
mechanical
squeezing
a
pressure
chamber
(PC),
an
induction
module
(IM),
CVD.
The
composition
between
IRMS
CRDS
were
significant
but
minimal.
Soil
properties
not
factors
contributing
instruments.
For
CVD,
each
required
more
than
hours.
Significant
observed
δ2H
among
methods
water.
Xylem
CVD
showed
depleted
values
those
obtained
PC
IM.
Our
results
highlight
importance
considering
stable
analysis.
Physiologia Plantarum,
Journal Year:
2024,
Volume and Issue:
176(3)
Published: April 29, 2024
Abstract
Tracer
injection
has
long
been
recognized
as
a
valuable
tool
for
delineating
tree
hydraulics
and
assessing
water
transport
pathways.
Recently,
isotope
tracers
have
emerged
innovative
instruments
investigating
hydraulics,
providing
new
insights
into
dynamics.
Nevertheless,
there
is
critical
need
further
research
to
comprehensively
grasp
movement
distribution
within
trees.
A
previously
introduced
technique
analyzing
the
isotopic
ratio
of
in
wet
tissues,
offering
millimeter‐scale
resolution
visualizing
tracer
movement,
faces
challenges
due
its
underdeveloped
sample
preparation
techniques.
In
this
study,
we
an
H
2
18
O
S.
gracilistyla
samples,
exclusively
comprising
indeterminate
roots,
stems,
leaves,
cultivated
through
hydroponics
grown
current
year.
Our
objective
was
assess
axial
xylem.
Additionally,
devised
novel
method
preparing
frozen
tissue
enhancing
repeatability
success
rate
experiments.
The
results
demonstrated
that
all
samples
exhibited
average
loss
less
than
0.6%.
Isotopic
analysis
these
unveiled
consistent
decline
concentration
with
increasing
height
Salix
specimens,
three
out
five
revealing
significant
gradient.
findings
affirm
efficacy
practicality
combining
labeling
freezing,
stabilization,
Looking
ahead,
our
methods
are
poised
transcend
woody
plants,
finding
extensive
applications
plant
physiology
ecohydrology.
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.
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.
