Dendrochronologia,
Journal Year:
2024,
Volume and Issue:
86, P. 126234 - 126234
Published: July 9, 2024
Riparian
forests
from
semi-arid
regions
with
saline
soils
are
dominated
by
facultative
phreatophytes
such
as
tamarisks
(Tamarix
spp.).
Tamarisks
tolerate
drought
and
salt
stress
using
shallow
deep
soil
water
sources
depending
on
precipitation
flow
variability
in
ephemeral
or
permanent
streams.
Therefore,
their
radial
growth
wood
anatomy
would
differently
respond
to
severity
stream
ephemerality.
To
assess
these
responses,
tree-ring-width,
earlywood
sapwood
nutrient
concentrations
were
measured
five
riparian
tamarisk
stands
located
north-eastern
Spain.
These
sites
experienced
different
aridity
degrees
near
(e.g.,
Lanaja-dry
site)
streams
intensively
irrigated
agricultural
areas
Valcuerna).
Tree
rings
widest
Peñaflor
(2.94
mm)
narrowest
the
driest
site
(1.11
mm),
where
tree-to-tree
coherence
was
higher
than
other
sites.
Wet
conditions
during
year
enhanced
growth,
particularly
most
responsive
Lopín,
whereas
elevated
increased
hydraulic
diameter
Valcuerna.
In
site,
Ca,
Cu,
K
Mn
Valcuerna,
but
C
N
lower.
Elevated
Ca
correspond
reflect
eutrophication
due
extensive
use
of
fertilizers
depth
groundwater
may
be
a
more
robust
proxy
drier
is
constrained
12-month
long
spring
droughts.
New Phytologist,
Journal Year:
2024,
Volume and Issue:
244(2), P. 654 - 669
Published: Aug. 16, 2024
Summary
Stomatal
closure
during
drought
inhibits
carbon
uptake
and
may
reduce
a
tree's
defensive
capacity.
Limited
availability
increase
mortality
risk,
particularly
if
constrains
trees'
capacity
to
rapidly
produce
defenses
biotic
attack.
We
parameterized
new
model
of
conifer
defense
using
physiological
data
on
reserves
chemical
before
after
simulated
bark
beetle
attack
in
mature
Pinus
edulis
under
experimental
drought.
Attack
was
inoculations
with
consistent
bluestain
fungus
(
Ophiostoma
sp.)
Ips
confusus
,
the
main
colonizing
this
tree,
induce
response.
Trees
more
produced
but
measured
phloem
only
accounted
for
c.
23%
induced
Our
predicted
universal
local
alone
supported
production,
suggesting
substantial
remobilization
transport
stored
resin
or
inoculation
site.
results
show
that
de
novo
terpene
synthesis
represents
fraction
total
terpenes
P.
following
fungal
inoculation.
Without
direct
attribution
concentrations
available
carbon,
many
studies
be
overestimating
scale
importance
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
951, P. 175858 - 175858
Published: Aug. 28, 2024
The
impact
of
atmospheric
pollution
on
the
growth
European
forest
tree
species,
particularly
beech,
Silver
fir
and
Norway
spruce,
is
examined
in
five
mesic
forests
Czech
Republic.
Analyzing
basal
area
increment
(BAI)
patterns
using
linear
mixed
effect
models
reveals
a
complex
interplay
between
nitrogen
(N)
sulphur
(S)
deposition,
climatic
variables
changing
CO
Journal of Forest Science,
Journal Year:
2023,
Volume and Issue:
69(2), P. 67 - 79
Published: Feb. 15, 2023
Silver
fir
(Abies
alba
Mill.)
is
still
counted
among
drought-tolerant
tree
species.
However,
its
ability
to
cope
with
the
recent
extremely
dry
period
has
not
yet
been
sufficiently
studied.
The
objective
of
research
was
analyse
differences
in
climate-growth
response
between
silver
fir,
Norway
spruce
(Picea
abies
L.
Karst.)
and
European
larch
(Larix
decidua
growing
areas
large-scale
disintegration
stands.
In
2019–2021,
increment
cores
were
sampled
at
16
sites
along
altitudinal
gradient
340–775
m
a.s.l.
different
regions
Czech
Republic
affected
by
bark
beetle
outbreak.
radial
growth
pattern
compared
that
or
under
same
site
conditions.
missing
rings
frequently
recorded
during
peak
SO2
pollution
load
1966–1985,
but
they
rarely
identified
years.
larch,
less
common
occurred
mainly
after
2015.
Fir
sensitive
summer
drought
especially
spruce,
which
showed
high
sensitivity
regardless
altitude.
significant
positive
precipitation
up
450
a.s.l.,
however,
increased
last
two
decades.
Hence,
when
considering
wider
use
it
necessary
respect
ecological
requirements
as
much
possible
order
preserve
vitality
production
potential
changing
climatic
Current Forestry Reports,
Journal Year:
2023,
Volume and Issue:
9(6), P. 461 - 472
Published: Sept. 22, 2023
Abstract
Purpose
of
Review
The
capacity
woody
plants
to
cope
with
climate
change
depends
on
their
adjustments
changing
environmental
conditions
by
phenotypic
plasticity
or
genotypic
changes
(i.e.,
local
adaptation).
To
determine
whether
intraspecific
trait
variation
(ITV)
translates
into
resistance
tolerance
drought
and
eventually
how
it
relates
performance
when
facing
drought,
we
reviewed
the
recent
literature
in
plant
functional
traits
along
aridity
gradients.
Recent
Findings
At
level,
vary
gradients,
but
this
considered
species.
While
ITV
is
ubiquitous
relevant
magnitude,
its
relationship
tree
case
growth
survival
unclear
very
idiosyncratic.
Summary
varies
gradients
and,
for
several
traits,
comparable
magnitude
as
interspecific
variation.
However,
between
not
consistent
among
This
makes
use
challenging
quantifying
contribution
tolerance.
Tree Physiology,
Journal Year:
2024,
Volume and Issue:
44(9)
Published: Aug. 19, 2024
Abstract
Mistletoes
are
xylem-tapping
hemiparasites
that
rely
on
their
hosts
for
water
and
nutrient
uptake.
Thus,
they
impair
tree
performance
in
the
face
of
environmental
stress
via
altering
carbon
relations
nutritional
status
trees.
To
improve
our
understanding
physiological
responses
to
mistletoe
ongoing
climate
change,
we
investigated
radial
growth,
stable
oxygen
isotopic
signals,
elemental
composition
rings
silver
fir
(Abies
alba
Mill.)
Scots
pine
(Pinus
sylvestris
L.)
forests
infested
with
Viscum
album
L.
We
compared
temporal
series
(1990–2020)
basal
area
increment
(BAI),
intrinsic
water-use
efficiency
(iWUE),
isotope
(δ18O),
concentrations
stoichiometric
ratios
between
non-infested
(NI)
severely
(SI)
trees
from
populations
located
close
xeric
distribution
limit
species
north-eastern
Spain.
The
SI
showed
historically
higher
but
BAI
trend
was
negative
more
than
three
decades
before
2020
growth
rates
became
significantly
lower
those
NI
by
mid-2010s.
Mistletoe
infestation
related
an
enhanced
sensitivity
vapour
pressure
deficit
(atmospheric
drought).
less
pronounced
iWUE
increases
(fir)
values
(pine)
tree-ring
δ18O
may
be
result
several
superimposed
effects
operating
simultaneously,
including
leaf-level
evaporative
enrichment,
source
anatomical
phenological
differences.
observed
a
deterioration
potassium
(K)
nutrition
wood
both
trees,
along
accumulation
manganese
(Mn).
suggest
such
patterns
driven
indirect
effect
mistletoe-induced
drought
stress,
particularly
pine.
combined
analyses
different
indicators
imprinted
provided
evidence
progressive
onset
carbon,
imbalances
mistletoe-infested
conifers
inhabiting
seasonally
dry
regions.
Forests,
Journal Year:
2023,
Volume and Issue:
14(6), P. 1138 - 1138
Published: May 31, 2023
Forests
around
the
world
are
facing
climate
change.
Increased
drought
stress
and
severe
heat
waves
in
recent
decades
have
negatively
impacted
on
forest
health,
making
them
more
vulnerable
prone
to
dieback
mortality
phenomena.
Although
term
vulnerability
is
used
indicate
an
increased
susceptibility
of
forests
change
with
a
worsening
their
vigour
status
that
can
compromise
ability
respond
further
extreme
events,
there
still
uncertainties
how
evaluate
it.
Indeed,
evaluation
complex
both
because
some
critical
issues
estimation
methods
multiple
factors
influencing
response
ongoing
A
way
assess
environmental
stresses
by
combining
remote
sensing
dendroecological
data.
However,
these
two
approaches
entail
uncertainties,
including
growth/photosynthetic
relationships,
carbon
allocation
dynamics,
biases
tree-ring
data
noisy
data,
which
require
clarification
for
proper
monitoring
pre-
post-drought
trajectories.
Our
review
aims
create
overview
current
literature
knowledge
understand
issues,
needs
possible
solutions
research
addressing.
We
focus
Mediterranean
located
warming
hotspot
showing
high
aridification.