Sustainability,
Journal Year:
2024,
Volume and Issue:
17(1), P. 191 - 191
Published: Dec. 30, 2024
Scyphiphora
hydrophyllacea
is
an
endangered
mangrove
species
in
China.
Over-exploitation
and
coastal
development
have
drastically
reduced
its
distribution
population,
now
limited
to
the
Qingmei
Port
(Sanya)
Qinglan
(Wenchang).
Despite
critical
status,
research
on
ecological
roles
remains
limited.
This
study
examines
characteristics
of
S.
communities
their
relationship
with
soil
properties.
A
total
17
from
11
families
14
genera
were
recorded.
TWINSPAN
classification
identified
two
distinct
community
types:
community.
Significant
biodiversity
differences
found
only
tree
layer,
no
shrub
or
herbaceous
layers.
The
importance
value
within
arbor
layer
exhibited
variability
across
communities,
serving
as
associated
a
dominant
community,
suggesting
potential
barriers
natural
regeneration.
Redundancy
analysis
(RDA)
revealed
that
key
factors
influencing
hydrophyllacea’s
include
electrical
conductivity
(EC),
phosphorus
(TP),
nitrogen
(TN),
organic
content
(SOC),
carbon/nitrogen
ratio
(C/N).
We
propose
high
salinity
deficiency
may
act
limiting
regeneration
hydrophyllacea.
Frontiers in Plant Science,
Journal Year:
2025,
Volume and Issue:
15
Published: Jan. 3, 2025
Soil
salinization
poses
a
significant
ecological
and
environmental
challenge
both
in
China
across
the
globe.
Plant
growth-promoting
rhizobacteria
(PGPR)
enhance
plants'
resilience
against
biotic
abiotic
stresses,
thereby
playing
vital
role
soil
improvement
vegetation
restoration
efforts.
PGPR
assist
plants
thriving
under
salt
stress
by
modifying
plant
physiology,
enhancing
nutrient
absorption,
synthesizing
hormones.
However,
mechanisms
through
which
regulate
contents
of
carbon
(C)
nitrogen
(N),
biomass
allocation
desert
response
to
is
still
unclear.
This
study
explores
impact
on
allocation,
C,
N
R.
soongorica
seedlings
pot
experiment.
Strains
P6,
N20,
N21,
identified
as
Enterobacter,
were
isolated
from
rhizosphere
soongorica,
they
exhibited
various
beneficial
traits
such
indole-3-acetic
acid
(IAA)
production,
phosphate
solubilization,
fixation,
tolerance
up
8%
NaCl
stress.
We
found
that
stress,
exhibit
reductions
height,
basal
diameter,
root
surface
area
(P<0.05).
inoculation
with
strains
N21
reverses
these
trends.
Compared
treatment
alone,
co-treatment
significantly
increases
roots,
stems,
leaves,
particularly
biomass,
99.88%,
85.55%,
141.76%,
respectively
Moreover,
decrease
stems
C
increase
roots
leaves
compared
Specifically,
14.50%,
12.47%,
8.60%,
while
4.96%,
4.45%,
4.94%,
Additionally,
stem
leaf
biomasses
positive
correlation
negative
tissues.
In
conclusion,
Enterobacter
enhanced
seedlings,
regulated
distribution,
modifies
promote
growth
improve
tolerance.
provides
novel
adaptive
strategy
for
integrated
use
halophytes
saline-alkali
Plants,
Journal Year:
2025,
Volume and Issue:
14(7), P. 1088 - 1088
Published: April 1, 2025
Carbon
(C),
nitrogen
(N),
and
phosphorus
(P)
are
vital
nutrients
in
the
soil,
exerting
a
profound
influence
on
primary
productivity
of
ecosystems.
However,
our
understanding
how
understory
influences
soil
their
stoichiometry
remains
limited,
especially
cold-temperate
forests
where
plays
crucial
role
mediating
nutrient
cycling.
To
elucidate
effect
vegetation
nutrients,
three
typical
larch
forests,
namely
Sphagnum-Bryum-Rhododendron
tomentosum-Larix
gmelinii
forest
(SLL),
Rhododendron
dauricum-Larix
(RL),
(LL),
were
selected
region
northeast
China
to
determine
organic
carbon
(SOC),
total
(TN),
(TP)
contents,
stoichiometric
characteristics
0-100
cm
depth.
The
results
revealed
following:
(1)
Significant
differences
its
existed
among
different
types
(p
<
0.001),
with
SLL
displaying
highest
mean
SOC,
TN,
TP
as
well
C:N,
C:P,
N:P
ratios,
whereas
RL
exhibited
lowest
values
0.05).
(2)
Across
profile,
content
showed
decreasing
trends
depth,
significant
layers.
(3)
Variations
significantly
correlated
bulk
density,
pH,
temperature,
water
content,
porosity,
capillary
porosity
This
study
underscores
necessity
further
consideration
impact
future
research
Applied Ecology and Environmental Research,
Journal Year:
2024,
Volume and Issue:
22(3), P. 1971 - 1981
Published: Jan. 1, 2024
Despite
extensive
studies
on
how
environmental
factors
influence
plant
and
soil
nutrient
distribution
stoichiometry,
the
intertidal
zone
affects
distribution,
stoichiometry
remains
unclear.Therefore,
this
study
analyzed
leaf
organic
carbon
(C),
nitrogen
(N),
phosphorus
(P)
concentrations
in
mangrove
forest
wetlands
South
China.The
results
demonstrated
that
were
significantly
different
plants
zones.The
average
N:P
ratio
was
12.85
mainly
nitrogen-limited.Soil
at
0-10
cm
higher
mid-and
low
zones,
while
opposite
true
for
high
zone.The
concentration
less
than
<30-40
both
mid-intertidal
varied
similarly
to
of
carbon.The
C:N
ratios
30-40
highest
decreased
with
decreasing
elevation.Contrastingly,
C:P
did
not
differ
much
among
three
zones
between
0-10-cm
30-40-cm
profiles.The
correlated
carbon,
phosphorus,
ratio.Overall,
responded
differently
communities
zones.These
differences
might
be
attributed
variations
conditions
communities.
Frontiers in Plant Science,
Journal Year:
2024,
Volume and Issue:
15
Published: Sept. 24, 2024
Investigating
carbon
(C),
nitrogen
(N)
and
phosphorus
(P)
contents
ecological
stoichiometric
characteristics
in
leaf
litter
from
tropical
rainforests
is
crucial
for
elucidating
nutrient
cycling
energy
flow
forest
ecosystems.
In
this
study,
a
60-ha
montane
rainforest
dynamic
monitoring
plot
Jianfengling,
was
selected
as
the
research
site
60
subplots
were
detailed
study.
Leaf
collected
monthly
throughout
2016,
branches
of
similar
height
placed
atthe
four
corners
each
sample
square
to
support
nylon
cloth
(1
m×
1
m)
with
mm
apertures.
The
plant
leaves
sorted,placed
into
envelopes,
labelled,
transported
laboratory
samples
various
species
identified,
resulting
total
107
analyzed.
For
31
dominant
species,
had
C,
N
P
312.71
±
28.42,
4.95
0.46
0.40
0.03
g/kg,
respectively.
C:N,
C:P
N:P
ratios
63.61
7.50,
790.91
82.30
12.49
1.00,
respectively,
indicating
moderate
variability.
exhibited
greater
variability
among
groups,
significant
heterogeneity
samples.
contrast,
data
less
variability,
highlighting
homogeneity.
Overall,
mean
carbon,
lower
than
those
observed
at
national
global
scales.
below
14
indicated
that
limited
decomposition
Jianfengling.
However,
no
correlations
between
their
soil.
above
results
provide
important
reference
scientific
basis
processes,
future,
we
can
explore
limiting
role
mechanism
process
litter.
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(14), P. 5942 - 5942
Published: July 12, 2024
In
order
to
investigate
the
effects
of
brassinolide
(BR)
on
ecological
stoichiometric
characteristics
and
internal
stability
plants
in
slope
protection
under
different
drought
conditions,
biomass,
proline
content,
nutrient
tall
fescue
(Festuca
arundinacea)
three
stress
periods
were
analyzed
by
weighing
water
control
method,
with
degrees
(75%
±
5%),
mild
(55%
5%)
severe
(35%
four
BR
concentrations
(0
mg/L,
0.05
0.2
mg/L
0.5
mg/L).
The
results
showed
that
resulted
a
decrease
plant
biomass
there
differences
carbon,
nitrogen
phosphorus
contents
their
ratios
organs.
Spraying
suitable
concentration
could
alleviate
loss
promote
accumulation
fescue.
Under
normal
spraying
conditions
BR,
it
is
most
for
high
sensitivity
exogenous
input,
underground
part
increased
clearly.
propitious
synthesis
enhances
resistance
plants.
According
characteristics,
can
improve
utilization
efficiency
certain
extent,
ratio
show
main
factor
limiting
growth
vegetation
concrete
restoration
system,
which
supplement
accelerate
process
restoration.
application
fescue,
adjust
distribution
strategy
stability,
adverse
This
study
provides
new
ideas
methods
reconstruction
arid
areas.
