Plants,
Journal Year:
2024,
Volume and Issue:
13(23), P. 3261 - 3261
Published: Nov. 21, 2024
Water
resources
are
crucial
factors
that
limit
vegetation
recovery,
and
rational
planning
of
silvicultural
patterns
is
essential
for
the
efficient
utilization
water
in
arid
semi-arid
regions.
This
study
examined
strategies
pure
shrubs
(pure
stands
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
927, P. 172166 - 172166
Published: April 3, 2024
Previous
favorable
climate
conditions
stimulate
tree
growth
making
some
forests
more
vulnerable
to
hotter
droughts.
This
so-called
structural
overshoot
may
contribute
forest
dieback,
but
there
is
little
evidence
on
its
relative
importance
depending
site
and
species
because
of
limited
field
data.
Here,
we
analyzed
remote
sensing
(NDVI)
tree-ring
width
data
evaluate
the
impacts
2017
drought
canopy
cover
in
mixed
Mediterranean
(Fraxinus
ornus,
Quercus
pubescens,
Acer
monspessulanum,
Pinus
pinaster)
located
southern
Italy.
Legacy
effects
were
assessed
by
calculating
differences
between
observed
predicted
basal
area
increment
(BAI).
Overall,
response
study
stands
was
contingent
characteristics.
Most
sites
presented
BAI
reductions
during
drought.
Growth
decline
followed
a
quick
recovery
positive
legacy
effects,
particularly
case
F.
ornus.
However,
found
negative
legacies
(e.g.,
Q.
A.
monspessulanum)
sites.
In
those
showing
legacies,
high
rates
prior
previous
wet
winter-spring
have
predisposed
trees
damage.
Vice
versa,
ornus
linked
post-drought
release
due
pubescens
dieback
mortality.
Therefore,
evidences
overshoot,
it
restricted
specific
species.
Our
findings
highlight
considering
settings
such
as
stand
composition,
pre-drought
different
when
studying
overshoot.
Droughts
modify
composition
dynamics
forests.
Agricultural and Forest Meteorology,
Journal Year:
2024,
Volume and Issue:
350, P. 109993 - 109993
Published: April 8, 2024
Warmer
and
drier
climate
conditions
are
negatively
impacting
conifers,
which
show
different
mechanisms
to
withstand
drought
stress
including
growth
resilience.
However,
it
is
unclear
traits
make
trees
shrubs
more
resilient
in
terms
of
recovery.
We
addressed
this
question
by
measuring
collecting
from
the
literature
several
functional
19
conifers
nine
genera
(Abies,
Pinus,
Pseudotsuga,
Cedrus,
Picea,
Juniperus,
Cupressus,
Tetraclinis
Taxus)
three
families
(Pinaceae,
Cupressaceae,
Taxaceae)
inhabiting
sites
contrasting
Spain.
These
were
correlated
with
resilience
indices
derived
ring-width
data
(Rt,
resistance;
Rc,
recovery;
Rs,
resilience)
without
accounting
for
their
phylogenetic
signal.
Growth
resistance
(Rt)
was
related
plant
height
(r
=
-0.52,
p
0.04).
(Rs)
-0.93,
<
0.001)
leaf
life
span
-0.51,
0.03),
but
positively
thickness-to-span
ratio
0.80,
0.001).
relationship
between
Rs
not
significant
(p
0.155)
after
signals.
Lastly,
recovery
responsiveness
climate,
assessed
as
correlation
water
balance
0.66,
0.002).
Height
ratio,
a
surrogate
xylem
cavitation,
linked
post-drought
subjected
seasonal
dry
conditions.