Hydrological Processes,
Journal Year:
2024,
Volume and Issue:
38(5)
Published: May 1, 2024
Abstract
Understanding
the
water
use
characteristics
and
relationship
of
coexisting
vegetation
in
a
mixed‐species
plantation
trees
shrubs
is
crucial
for
sustainable
restoration
degraded
arid
areas.
This
study
investigated
characteristic
sand‐binding
combinations
sierozem
habitat
(
Populus
przewalskii
Maxim
namely
Populus‐S
Caragana
liouana
)
aeolian
sandy
soil
habitats
Populus‐A
Salix
psammophila
desert
steppe.
By
analysing
δ
2
H
18
O
isotopes
xylem,
water,
groundwater
precipitation,
Bayesian
MixSIAR
model
was
employed
to
quantitatively
assess
utilization
plants.
Throughout
growing
season,
habitat,
C.
exhibits
highest
efficiency
utilizing
moisture
above
60
cm
(53.45%)
displays
adaptable
strategies.
In
contrast,
predominantly
relies
on
deep
below
plus
(63.89%).
both
S.
similarly
favour
(66.77%
67.60%,
respectively).
During
transition
period
from
dry
wet
seasons,
although
shifted
their
sources
deeper
shallower
ones,
there
considerable
overlap
used
by
.
led
competition
resources
exacerbated
depletion
seasons.
Conversely,
partitioning
between
facilitated
allocation
two
species.
The
findings
highlight
need
species‐specific
consideration
resource
within
plantations
shrubs,
which
ecosystems.
