Previous
studies
on
biodiversity-ecosystem
multifunctionality
(BEMF)
have
emphasized
the
role
of
plant
species
diversity,
yet
rarely
forest
community
spatial
structure
is
mentioned.
Here,
we
established
30
dynamic
plots
in
three
stages
natural
restoration
(shrubbery,
secondary
growth
forest,
and
old-growth
forest)
Maolan
National
Nature
Reserve,
Guizhou
province,
China,
to
investigate
BEMF.
By
quantifying
soil
microbial
(SMF),
structure,
found
that
SMF,
fungal
β
diversity
responded
positively
restoration.
However,
bacterial
negatively
α
remained
unchanged.
Our
findings
from
a
structural
equation
modeling
showed
had
no
effect
either
directly
or
indirectly,
while
was
only
direct
predictor
SMF
affected
indirectly
through
diversity.
Finally,
results
random
models
revealed
Shannon
Wiener
index
diameter
at
breast
height
were
optimal
explanatory
variables
for
respectively.
study
challenges
understanding
important
BEMF
studies,
highlights
crucial
determining
BEMF,
particularly
degraded
karst
forests.
Frontiers in Microbiology,
Journal Year:
2024,
Volume and Issue:
15
Published: May 22, 2024
Background
Desert
steppe
ecosystems
are
prone
to
drought
stress,
which
influences
the
ecological
balance
and
sustainable
development
of
grasslands.
In
addition
directly
restrict
plant
growth,
stress
indirectly
impacts
fitness
by
altering
diversity
function
root-associated
microbiomes.
This
begs
question
whether
functional
microbiome
forage
plants,
represented
synthetic
microbial
communities
(SynComs),
can
be
leveraged
mitigate
in
desert
steppes
promote
restoration
these
fragile
ecosystems.
Methods
A
pot
experiment
was
conducted
evaluate
role
SynComs
improving
growth
resistance
Neopallasia
pectinata
(Pall.)
Poljak
Inner
Mongolia,
China.
Six
were
derived
from
rhizosphere
root
endosphere
12
dominant
species
steppe.
Each
SynCom
comprised
two
three
bacterial
genera
(
Bacillus
,
Protomicromonospora
Streptomyces
).
We
examined
capacities
different
for
nutrient
solubilization,
phytohormone
secretion,
enzymatic
activity.
Results
Under
no
water
(75%
soil
holding
capacity,
WHC),
single
strains
performed
better
than
promoting
terms
stem
diameter,
length,
dry
weight,
with
greatest
effects
observed
coeruleorubidus
ATCC
13740
p
<
0.05).
However,
under
mild
moderate
(55%
35%
outperformed
enhancing
biomass
accumulation
inducing
production
resistance-related
substances
No
significant
effect
emerged
extreme
(20%
WHC).
Conclusion
study
underscores
potential
facilitating
plants
combat
Mild
stimulates
benefit
N.
despite
a
moisture
threshold
(21%
WHC)
exists
effect.
The
use
provides
promising
strategy
utilization
manipulating
plants.
Land Degradation and Development,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
ABSTRACT
As
the
climax
community
of
karst
in
southwest
China
without
human
disturbance,
mechanisms
through
which
biodiversity
maintains
ecosystem
multifunctionality
(EMF)
evergreen
and
deciduous
broad‐leaved
mixed
forest
are
still
unclear.
This
study
employed
structural
equation
modeling
to
analyze
correlations
between
EMF
three
key
variables:
plant
diversity,
soil
microbial
rock
exposure
ratio
within
this
forest.
Plant
diversity
were
main
biotic
drivers
EMF.
Within
these
factors,
provided
a
preferable
explanation
for
compared
with
fungal
co‐occurrence
network
complexity
playing
dominant
roles.
Functional,
species,
phylogenetic
indices
explain
changes
better
than
community‐weighted
mean
traits,
indicating
that
niche
complementarity
hypothesis
holds
greater
relevance
explaining
biodiversity‐maintenance
mechanism
Moreover,
directly
affects
as
well
indirectly
diversity.
Collectively,
account
87%
variability
Specifically,
its
exerted
positive
direct
impact
on
EMF,
while
bacterial
mainly
affected
by
positively
contributing
complexity.
These
findings
emphasized
significance
comprehensive
protection
aboveground
underground
have
strengthened
our
comprehension
forests.
