Identifying drivers of non-stationary climate-growth relationships of European beech
The Science of The Total Environment,
Год журнала:
2024,
Номер
937, С. 173321 - 173321
Опубликована: Май 22, 2024
The
future
performance
of
the
widely
abundant
European
beech
(Fagus
sylvatica
L.)
across
its
ecological
amplitude
is
uncertain.
Although
considered
drought-sensitive
and
thus
negatively
affected
by
drought
events,
scientific
evidence
indicating
increasing
vulnerability
under
climate
change
on
a
cross-regional
scale
remains
elusive.
While
evaluating
changes
in
sensitivity
secondary
growth
offers
promising
avenue,
studies
from
productive,
closed-canopy
forests
suffer
knowledge
gaps,
especially
regarding
natural
variability
how
it
relates
to
radial
as
an
indicator
tree
vitality.
Since
sensitive
drought,
we
this
study
use
index
variable
account
for
combined
effects
temperature
water
availability
explore
varies
temporally
dependence
variability,
trends,
climatic
species'
amplitude.
Our
results
show
that
highly
non-stationary,
though
consistently
higher
at
dry
sites
compared
moist
sites.
Increasing
can
largely
be
explained
aridity,
exacerbated
trees'
rank
progression
within
forest
communities,
(co-)dominant
trees
are
more
extra-canopy
conditions
than
embedded
understories.
However,
during
driest
periods
20th
century,
showed
clear
signs
being
decoupled
climate.
This
may
indicate
fundamental
system
behavior
early-warning
signals
decreasing
tolerance.
multiple
significant
interaction
terms
our
model
elucidate
complexity
beech's
sensitivity,
which
needs
taken
into
consideration
when
assessing
response
change.
Язык: Английский
Acclimation of mature spruce and beech to five years of repeated summer drought – The role of stomatal conductance and leaf area adjustment for water use
The Science of The Total Environment,
Год журнала:
2024,
Номер
951, С. 175805 - 175805
Опубликована: Авг. 27, 2024
Forests
globally
are
experiencing
severe
droughts,
leading
to
significant
reductions
in
growth,
crown
dieback
and
even
tree
mortality.
The
ability
of
forest
ecosystems
acclimate
prolonged
repeated
droughts
is
critical
for
their
survival
with
ongoing
climate
change.
In
a
five-year
throughfall
exclusion
experiment,
we
investigated
the
long-term
physiological
morphological
acclimation
mature
Norway
spruce
(Picea
abies
[L.]
KARST.)
European
beech
(Fagus
sylvatica
L.)
summer
drought
at
leaf,
shoot
whole
level.
Throughout
period,
reduced
total
water
use
by
70
%
only
4-9
L
per
day
tree,
while
was
less
affected
about
30
reduction
use.
During
first
two
summers,
achieved
this
closing
stomata
up
80
%.
Additionally,
from
second
onwards,
produced
shorter
shoots
needles,
resulting
stepwise
leaf
area
over
50
end
experiment.
Surprisingly,
no
premature
loss
observed.
This
allowed
gradual
increase
stomatal
conductance.
After
consumption
same
as
controls,
still
reduced.
contrast,
showed
whole-tree
area,
but
nevertheless
closure.
If
restriction
transpiration
closure
sufficient
ensure
during
then
slow
steady
will
successful
use,
stress
survival.
Neighboring
appeared
benefit
water-saving
strategy
using
excess
water.
Язык: Английский
No effect of invasive tree species on aboveground biomass increments of oaks and pines in temperate forests
Forest Ecosystems,
Год журнала:
2024,
Номер
11, С. 100201 - 100201
Опубликована: Янв. 1, 2024
Prunus
serotina
and
Robinia
pseudoacacia
are
the
most
widespread
invasive
trees
in
Central
Europe.
In
addition,
according
to
climate
models,
decreased
growth
of
many
economically
ecologically
important
native
will
likely
be
observed
future.
We
aimed
assess
impact
these
two
neophytes,
which
differ
biomass
range
nitrogen-fixing
abilities
European
conditions,
on
relative
aboveground
increments
oaks
Quercus
robur
Q.
petraea
Scots
pine
Pinus
sylvestris.
increase
our
understanding
relationship
between
facilitation
competition
woody
alien
species
overstory
trees.
established
72
circular
plots
(0.05
ha)
different
forest
habitat
types
stands
varying
age
western
Poland.
chose
with
abundances
studied
neophytes
determine
how
effects
scaled
along
quantitative
invasion
gradient.
Furthermore,
we
collected
cores
species,
calculated
at
tree
stand
levels.
Then,
used
generalized
linear
mixed-effects
models
species.
did
not
find
a
biologically
or
statistically
significant
R.
P.
pines
gradient
invader
proportion
total
accounted
for
by
invaders.
The
act
as
stimulators
but
also
compete
them
resources,
would
escalate
negative
change
oaks.
should
significantly
modify
carbon
sequestration
capacity
Our
work
combines
elements
per
capita
effect
research
mixed
management.
Язык: Английский
Dynamics of soil water potential as a function of stand types in a temperate forest: Emphasis on flash droughts
Blandine Courcot,
Daniel Lemire,
N BELANGER
и другие.
Geoderma Regional,
Год журнала:
2024,
Номер
38, С. e00850 - e00850
Опубликована: Авг. 15, 2024
Язык: Английский
Growth and Assemblage Dynamics of Temperate Forest Tree Species Match Physiological Resilience to Changes in Atmospheric Chemistry
Global Change Biology,
Год журнала:
2025,
Номер
31(3)
Опубликована: Март 1, 2025
Human-induced
environmental
changes
are
altering
forest
productivity
and
species
composition,
significantly
impacting
tree
physiology,
growth,
water
uptake,
nutrient
acquisition.
Investigating
the
intricate
interplay
between
plant
physiology
shifts,
we
analyzed
tree-ring
isotopes
(δ13C,
δ18O,
δ15N)
to
track
long-term
trends
in
intrinsic
water-use
efficiency
(iWUE)
nitrogen
availability
for
European
beech,
Norway
spruce,
silver
fir
a
unique
old-growth
temperate
mountain
since
1501
ce.
Our
findings
reveal
that
dominant
species,
exhibited
iWUE
saturation,
exacerbated
by
acidic
precipitation,
resulting
growth
declines
during
periods
of
high
air
pollution
increased
drought
frequency.
In
contrast,
deep-rooted,
deciduous
beech
demonstrated
physiological
resilience
acid
deposition,
benefiting
from
lower
dry
deposition
precipitation
acidity
thriving
under
conditions
elevated
temperatures,
thereby
sustaining
stem
regardless
potential
climatic
limitations.
Silver
showed
most
dynamic
response
pollution,
with
contemporary
adaptations
leaf
gas
exchange
allowing
accelerated
cleaner
conditions.
These
different
responses
underscore
shifts
competition,
gaining
dominance
as
spruce
decline.
Furthermore,
influence
ontogeny
is
evident,
tree-rings
initial
values
higher
δ15N,
reflecting
uptake
dynamics
ecological
role
age.
study
integrates
tree-growth
trends,
revealing
pivotal
atmospheric
chemistry
shaping
competitive
trajectories
forests.
Язык: Английский
Drought legacy in mature spruce alleviates physiological stress during recurrent drought
Plant Biology,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 16, 2025
Abstract
Forest
ecosystems
are
facing
severe
and
prolonged
droughts
with
delayed
recovery,
known
as
“drought
legacy”.
This
study
presents
positive
legacy
effects
following
a
long‐term,
experimental
drought
subsequent
recovery
in
mature
mixed
Norway
spruce
European
beech
forest.
Approximately
50
trees
were
exposed
to
five
consecutive
years
of
summer
by
completely
excluding
growing
season
precipitation
from
May
2014
June
2019.
Experimental
started
July
2019,
after
which
the
received
natural
precipitation.
Taking
advantage
2022,
unique
long‐term
drought,
we
investigated
how
affects
tree
physiological
responses
recurrent
drought.
The
resulted
60%
reduction
leaf
area,
was
still
reduced
30%
4
release.
slow
associated
water
use
higher
soil
availability
under
during
2022
leading
significantly
stress:
about
two
times
predawn
potential,
gas
exchange
sap
flow
density
compared
previous
controls.
Furthermore,
neighbouring
beech,
displaying
no
area
also
had
potential
controls,
likely
benefitting
spruce.
pronounced
effect
proved
advantageous
for
alleviating
stress
overcoming
future
events.
Язык: Английский
Root-shoot allometry and drought response of dominant and co-dominant European beech (Fagus sylvatica [L.]) and Norway spruce (Picea abies [L.] Karst.) in monospecific versus mixed-species stands in Bavaria, Germany
European Journal of Forest Research,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 19, 2025
Язык: Английский
Norway spruce monoculture has lower resilience and carbon sequestration capacity than a more diverse broadleaved forest: A case study in Central Europe
Forest Ecology and Management,
Год журнала:
2025,
Номер
591, С. 122829 - 122829
Опубликована: Май 30, 2025
Язык: Английский
Response and resilience to drought in northern forests revealed by Sentinel-2
International Journal of Remote Sensing,
Год журнала:
2024,
Номер
45(15), С. 5130 - 5157
Опубликована: Июль 12, 2024
Enhancing
forest
drought
resilience
is
important
for
preserving
ecosystem
services
in
the
face
of
climate
change,
but
operational
management
methods
boreal
forests
aiming
to
preserve
under
are
still
largely
missing.
This
study
explores
use
satellite
remote
sensing
monitor
vegetation
stress
phases
related
progression
and
quantify
both
short-
long-term
impacts
on
growth.
Data
from
Sentinel-2
mission
were
used
calculate
response
indices
across
six
types,
using
time
period
2015
2017
as
a
reference
dataset.
The
percentual
difference
between
year
2018
was
represent
disturbance
intensity
system's
capability
resist
it.
Additionally,
recovery
taken
into
consideration.
Breakpoint
detection
with
daily
temporal
resolution
each
type
relation
onset
date
meteorological
drought.
Results
indicate
that
data
can
be
associated
estimate
characteristics
resilience.
High
observations
should
prioritized
over
annual
maximum
index
values
determine
disturbance.
Consistent
severe
observed
areas
limited
soil
moisture
availability.
took
up
4
years.
Drought
exposure
during
consecutive
years
could
especially
damaging
species
requiring
longer
than
single
growing
season.
Sentinel-2-based
monitoring
approach
benefit
decision-support
systems
enhance
Язык: Английский
Species-specific responses of canopy greenness to the extreme droughts of 2018 and 2022 for four abundant tree species in Germany
The Science of The Total Environment,
Год журнала:
2024,
Номер
958, С. 177938 - 177938
Опубликована: Дек. 16, 2024
Germany
experienced
extreme
drought
periods
in
2018
and
2022,
which
significantly
affected
forests.
These
were
natural
experiments,
providing
valuable
insights
into
how
different
tree
species
respond
to
drought.
The
quantification
of
species-specific
responses
may
help
identify
the
most
climate-change-resilient
species,
thereby
informing
effective
forest
regeneration
strategies.
In
this
study,
we
used
remotely
sensed
peak-season
canopy
greenness
as
a
proxy
for
vitality
estimate
response
four
widely
abundant
(oak,
beech,
spruce,
pine).
We
focused
on
two
questions:
(1)
How
by
these
droughts?
(2)
Which
environmental
parameters
primarily
determined
greenness?
To
address
questions,
combined
recently
published
classification
map
with
variables
related
plant
available
water
capacity
(PAWC)
atmospheric
vapor
pressure
deficit
(VPD).
Our
results
indicate
that
more
isohydric
featured
greater
decline
under
droughts
compared
anisohydric
despite
similar
soil
moisture
conditions.
Based
spatial
lag
models,
found
influence
PAWC
increases
increasing
isohydricity
while
VPD
decreases.
statistical
analysis
indicates
oak
was
only
higher
2022
2018.
Yet,
all
are
likely
be
susceptible
accumulated
effects,
such
insufficient
recovery
time
increased
vulnerability
biotic
pathogens,
coming
years.
study
provides
critical
diverse
changing
environments
over
large
gradient
Central
Europe
sheds
light
complex
interactions
between
moisture,
climate
variables,
greenness.
findings
contribute
understanding
forests'
climate-change
resilience
guide
management
conservation
Язык: Английский