Impact of Deep-Rooted Vegetation on Deep Soil Water Recharge in the Gully Region of the Loess Plateau
Jingjing Jin,
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Xiaoyue Ding,
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Fengshi Li
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et al.
Water,
Journal Year:
2025,
Volume and Issue:
17(2), P. 208 - 208
Published: Jan. 14, 2025
To
investigate
the
impacts
of
vegetation
change
on
deep
soil
water
recharge,
it
is
essential
to
identify
sources
and
drainage.
The
combination
stable
radioactive
isotopes
an
effective
method
for
studying
vadose
zones,
though
has
been
rarely
applied
in
complex
gully
areas.
In
this
study,
we
measured
δ2H,
δ18O,
3H
under
long-term
natural
grassland
C.
korshinskii
same
slope.
Both
plots
received
from
rainfall
during
rainy
season;
however,
replenishment
thresholds
at
depths
2–10.4
m
differed
between
two
types,
corresponding
intensities
≥20
mm
≥50
mm,
respectively.
Following
conversion
vegetation,
rate
storage
deficit
increased
by
46.4
yr−1,
drainage
shifted
39.6
yr−1
0
yr−1.
Deep-rooted
significantly
depletes
meet
transpiration
demands,
thus
hindering
recharge.
These
findings
have
important
implications
land
resource
management,
especially
areas
undergoing
significant
changes.
Language: Английский
Estimation of Soil Evaporation in Apple Orchards Based on Hydrogen and Oxygen Isotopes
Agronomy,
Journal Year:
2024,
Volume and Issue:
15(1), P. 6 - 6
Published: Dec. 24, 2024
Accurate
estimation
of
soil
evaporation
and
plant
transpiration
is
crucial
for
the
scientific
effective
management
water
resources
in
apple
orchards.
Using
orchards
varying
ages
as
research
subjects,
Craig–Gordon
model
was
employed
to
quantitatively
estimate
loss
rate,
balance
analysis
utilized
differentiate
between
transpiration.
This
study
analyzed
effects
extreme
precipitation
on
ages.
The
results
indicated
following:
All
stable
isotopic
compositions
fell
within
lower
right
region
Local
Meteoric
Water
Line,
reduced
intercept
Evaporation
Trend
Line
Soil
rates
2021
2022
ranged
from
13%
24%
14%
18%,
respectively.
In
2022,
12
y,
15
19
y
22
measured
at
123,
77,
129
143
mm,
respectively,
indicating
negative
correlation
(R
=
−0.75)
leaf
area
index.
corresponding
levels
were
617
552
522
mm
330
a
linear
age
−0.92).
These
are
helpful
guide
development
irrigation
systems
provide
reference
enhancing
yield
promoting
sustainable
industry.
Language: Английский