Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 3, 2025
Abstract
The
existence
of
trait
coordination
in
roots
and
leaves
has
recently
been
debated,
with
studies
reaching
opposing
conclusions.
Here,
we
assessed
across
twelve
boreal
tree
species.
We
show
that
there
is
only
partial
evidence
for
above-belowground
“fast-slow”
economic
traits
species,
i.e.,
while
N
content
were
positively
correlated,
as
well
dry
matter
content,
root
leaf
had
no
significant
relationship.
For
resource
acquisition
(i.e.
related
to
light
capture
nutrient
uptake)
did
not
find
strong
coordination,
specific
length
area
correlated.
further
site
explained
between
0
7%
the
total
variation,
within-site
variation
contributed
substantially
a
large
number
(1.6–96%),
more
so
morphological
than
traits.
This
likely
influences
strength
found
species
our
study.
Understanding
sources
relationships
can
contribute
improving
global
regional
C
cycling
models.
However,
fine-scale
environmental
variability
should
be
accounted
given
its
importance
driving
variation.
Promoting
the
formation
and
accumulation
of
soil
carbon
(C)
is
one
natural
solutions
to
address
climate
change,
but
frequent
wildfires
increase
its
uncertainty
challenge.
This
two-year
study
deciphered
driving
pathways
seasonal
vertical
patterns
in
a
C
pool
following
wildfire
from
microbial
perspective.
Results
showed
that
total
organic
concentration
stock
postfire
decreased
by
29.9
17.5%
on
average
compared
with
unburned
control,
respectively,
whereas
allocations
labile
increased
25.1-45.7%.
Fire-induced
alterations
fractions
were
complicated
due
their
significant
seasonality
respective
sensitivities.
Nonetheless,
we
emphasized
life-history
traits
decisive
mediators
variations
positive
linkages
existed
between
r-selected
communities.
Fire
stimulated
lower
bacterial
fungal
copiotroph/oligotroph
ratios
higher
ribosomal
ribonucleic
acid
operon
copy
number,
shifting
microbes
K-
r-strategists.
From
integrated
management
indices,
fire
can
be
concluded
reduce
stability
accelerate
cycling,
whether
recaptured
prevalence
K-strategist
over
time
will
modify
processes
remains
unknown.
provided
stepping
stone
for
future
efforts
accurate
predictions
reasonable
management.
Biogeosciences,
Journal Year:
2025,
Volume and Issue:
22(8), P. 2023 - 2047
Published: April 25, 2025
Abstract.
Management
of
drained
forested
peatlands
has
important
implications
for
carbon
budgets,
but
contrasting
views
exist
on
its
effects
climate.
This
study
utilised
the
dynamic
ecosystem
model
ForSAFE-Peat
to
simulate
biogeochemical
dynamics
over
two
complete
forest
rotations
(1951–2088)
in
a
nutrient-rich
peatland
afforested
with
Norway
spruce
(Picea
abies)
southwestern
Sweden.
Model
simulations
aligned
well
observed
groundwater
levels
(R2=0.78)
and
soil
temperatures
(R2≥0.76)
captured
seasonal
annual
net
production
patterns,
although
daily
variability
was
not
always
represented.
Simulated
exchanges
(a
positive
sign
indicates
gains,
negative
losses)
were
analysed
considering
different
system
boundaries
(the
soil;
ecosystem;
fate
harvested
wood
products,
named
ecosystem–HWP)
using
balance
(NCB)
integrated
storage
(ICS)
metrics.
results
indicated
NCB
ICS
across
all
boundaries,
except
calculated
by
end
simulation
at
ecosystem–HWP
level.
The
exhibited
persistent
losses
primarily
driven
peat
decomposition.
At
level,
reduced
as
growth
partially
offset
until
harvesting.
(2307
gCmsoil-2)
level
due
slow
decay
(-0.59×106
gCyrmsoil-2)
large
initial
losses.
highlights
importance
boundary
selection
temporal
assessing
peatlands.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Feb. 25, 2025
Abstract
Afforestation
greatly
influences
several
earth
system
processes,
making
it
essential
to
understand
these
effects
accurately
assess
its
potential
for
climate
change
mitigation.
Although
our
understanding
of
forest-climate
interactions
has
improved,
significant
knowledge
gaps
remain,
preventing
definitive
assessments
afforestation's
net
benefits.
In
this
review,
focusing
on
the
Canadian
northern
boreal
and
southern
arctic,
we
identify
synthesize
existing
knowledge.
The
review
highlights
regional
realities,
Earth's
climatic
history,
uncertainties
in
biogeochemical
(BGC)
biogeophysical
(BGP)
changes
following
afforestation,
limitations
current
assessment
methodologies,
emphasizing
need
reconcile
before
drawing
firm
conclusions
about
benefits
afforestation.
Finally,
propose
an
framework
which
considers
multiple
forcing
components,
temporal
analysis,
future
contexts,
implementation
details.
We
hope
that
research
discussed
inform
afforestation
policy
Canada
other
circumpolar
nations.
Journal of Applied Ecology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 6, 2025
Abstract
Forests
have
a
substantial
potential
to
contribute
climate
change
mitigation,
depending
on
how
they
are
managed.
Forest
fertilization
with
nitrogen
is
used
increase
tree
productivity
in
Fennoscandian
forests,
but
it
can
also
soil
carbon
stocks.
However,
such
forests
often
harvested
through
clearcutting,
practice
known
impact
stocks,
mineralization
and
biodiversity.
To
test
whether
fertilizer‐induced
stocks
persistent,
we
studied
post‐clearcut
respiration,
growth,
ground
vegetation
fungal
communities
48
previously
fertilized
unfertilized
production
central
Sweden.
In
the
first
year
after
clearcuts
of
stored
7
t
(+30%)
more
210
kg
(+32%)
per
hectare
organic
layer
than
forests.
Four
13
years
there
was
no
significant
difference
layer,
or
CO
2
efflux,
between
Saprotrophic
ascomycetes
were
abundant
independent
time
since
clearcutting.
Previous
did
neither
result
increased
growth
regenerating
trees
nor
alter
understory
vegetation.
Synthesis
applications.
Overall,
carry‐over
effects
biodiversity
from
forest
into
stands
clearcutting
limited.
We
conclude
that
stores
induced
by
short‐lived
do
not
persist
Consequently,
mitigate
likely
limited
increases
aboveground
biomass
products
be
produced
biomass.
Our
study
raises
questions
about
where
added
ended
up—knowledge
essential
for
making
well‐informed
decisions
future
strategies.
