Open Life Sciences,
Год журнала:
2023,
Номер
18(1)
Опубликована: Янв. 1, 2023
As
a
vital
component
of
arbor
forests,
understory
vegetation
serves
as
an
essential
buffer
zone
for
storing
carbon
due
to
its
strong
capacity
community
regeneration.
This
study
aimed
identify
the
diversity
pattern
and
construction
mechanism
Platycladus
orientalis
Pinus
elliottii
based
on
large-scale
sample
surveys.
The
Bayesian
Information
Criterion
value
species
abundance
distribution
(SAD)
indicated
that
Zipf
Zipf-Mandelbrot
models
were
best-fitting
models.
SAD
gambin
fitting
results
suggested
Pi.
had
more
balanced
structure,
with
most
being
relatively
abundant.
multiple
regression
tree
model
detected
four
six
indicator
in
P.
communities,
respectively.
α-diversity
index
increased
rise
altitude
showed
wavy
curve
latitude.
Linear
between
β
environmental
geographic
distance
communities
tended
be
dominated
by
different
ecological
processes.
partition
both
turnover
processes,
which
caused
classification
or
spatial
constraints.
helped
understand
maintenance
will
benefit
restoration
conservation
pure
conifer
forests.
Frontiers in Forests and Global Change,
Год журнала:
2024,
Номер
7
Опубликована: Янв. 19, 2024
Riparian
topographical
features
can
drive
a
suite
of
ecological
indicators
(EIs)
that
shape
the
river
ecosystem.
The
mechanisms
EIs
reflect
provide
several
ecosystem
services.
We
know
little
about
responses
(indicators
plant
cover,
regeneration,
exotics,
habitat,
erosion,
and
stressors)
to
changing
stream-channel
width,
riparian
elevation
lengthy
drawdown
zones
(upstream,
midstream,
downstream)
long
rivers.
have
discovered
characteristics
affect
buffer
areas
differently
by
using
rapid
field-based
method
with
297
transects
in
inundated
regions
along
Yangtze
River
other
36
linked
tributaries
China.
Changing
widths
was
most
effective
on
downstream
least
at
midstream.
exotic
parameters
were
affected
(with
range
−0.36
<
r
0.401)
widths,
as
determined
Pearson
correlation
(
p
0.05).
In
contrast,
width
had
uppermost
impact
upstream
lowermost
downstream;
significant
habitat
≤
0.787).
followed
pattern
negatively
associated
exotics
−0.645
−0.594)
positively
correlated
regeneration
0.569).
These
results
reaffirm
imperative
need
for
studies
regionally
dependent
maintained
under
same
management
strategies
regardless
their
features.
Future
policies
should
be
formulated
enhance
service
provision,
promoting
sustainable
use
extensive
ecosystems
while
considering
EIs.
Additionally,
these
future
acknowledge
zone
factors
within
network.
Furthermore,
additional
measures
are
conserve
prevent
further
destruction.
Frontiers in Plant Science,
Год журнала:
2024,
Номер
15
Опубликована: Апрель 8, 2024
Carbon
(C),
nitrogen
(N),
and
phosphorus
(P)
stoichiometry
serve
as
valuable
indices
for
plant
nutrient
utilization
biogeochemical
cycling
within
ecosystems.
However,
the
allocation
of
these
nutrients
among
different
organs
underlying
drivers
in
dynamic
riparian
ecosystems
remain
inadequately
understood.
In
this
study,
we
gathered
samples
from
diverse
life
forms
(annuals
perennials)
(leaves,
stems,
roots)
zone
Three
Gorges
Reservoir
Region
(TGRR)
China—a
novel
ecosystem
subject
to
winter
flooding.
We
used
random
forest
analysis
structural
equation
modeling
find
out
how
flooding,
forms,
communities,
soil
variables
affect
C,
N,
P
levels.
Results
showed
that
mean
concentrations
TGRR
were
386.65,
19.31,
5.27
mg/g
leaves
respectively,
404.02,
11.23,
4.81
stems
388.22,
9.32,
3.27
roots
respectively.
The
C:N,
C:P
N:P
ratios
16.15,
191.7
5.56
respectively;
26.98,
273.72
4.6
16.63,
223.06
4.77
Riparian
plants
exhibited
limitation,
with
weak
carbon
sequestration,
low
efficiency,
a
high
capacity
uptake.
Plant
C:N:P
was
significantly
across
organs,
higher
N
than
roots,
annuals
perennials.
While
flooding
stress
triggered
distinct
responses
annual
perennial
plants,
they
maintained
similar
stoichiometric
along
gradients.
Furthermore,
our
investigation
identified
properties
more
influential
factors
communities
shaping
variations
organs.
Flooding
indirectly
impacts
primarily
through
alterations
community
composition
factors.
This
study
underscores
potential
hydrologic
changes
influence
dynamics,
further
alter
ecological
strategies
Ecological Indicators,
Год журнала:
2024,
Номер
160, С. 111889 - 111889
Опубликована: Март 1, 2024
The
Qinghai-Tibet
Plateau
(QTP)
harbours
the
largest
wetland
complex
in
China,
with
a
relatively
high
diversity
of
plants.
While
there
has
been
extensive
research
on
α-diversity
various
plant
groups
QTP,
study
β-diversity
specifically
plants
limited.
In
this
study,
we
quantified
geographic
pattern
from
three
dimensions:
taxonomic,
phylogenetic,
and
functional.
We
assessed
relative
importance
distance,
climatic
environmental
distance
topographic
β-diversity.
results
indicate
consistency
across
dimensions.
is
mountainous
regions
at
edge
plateau
low
platform.
turnover
component
contributes
more
to
taxonomic
than
nestedness,
whereas
opposite
true
for
phylogenetic
functional
Furthermore,
higher
patterns
QTP
are
jointly
influenced
by
filtering
dispersal
limitation.
Climatic
variables
(temperature
seasonality,
annual
precipitation,
precipitation
seasonality
mean
temperature)
(elevation
variation
coefficient,
elevation
slope)
were
identified
as
main
factors
influencing
QTP.
Overall,
elucidating
evolutionary
history
formation
mechanisms
communities
reveals
large-scale
diversity.
Frontiers in Environmental Science,
Год журнала:
2023,
Номер
11
Опубликована: Май 11, 2023
The
spatial
distribution
pattern
of
species
diversity
and
its
driving
variables
are
essential
to
understanding
how
biodiversity
will
respond
the
threat
future
climatic
instability.
This
study
examines
alpha
beta
indices
vary
along
elevation
gradient
which
factors
more
responsible
for
arid
semi-arid
plant
community
assembly.
There
were
121
from
90
genera
42
families
found
at
elevations
ranging
1,200
2,600
m
within
Ningxia
Helan
Mountain
National
Nature
Reserve
in
China.
These
primarily
shrubs
herbs
with
characteristics
adapted
extreme
temperatures.
both
shrub
layer
herb
was
highest
mid-elevation,
underscoring
importance
protecting
mid-elevation
ecosystems.
Climatic
distance
topographic
influential
than
composition
change
herbs.
In
layer,
climatic,
topographic,
contributed
assembly
communities.
this
case,
improving
environment
or
introducing
could
help
restoration
these
places.
findings
provide
insight
into
biogeographic
patterns,
growth
mechanisms,
formation
processes.
Moreover,
it
can
improve
projections
climate
across
ecosystems
scientific
basis
use
management
resources
regions.
Frontiers in Forests and Global Change,
Год журнала:
2024,
Номер
7
Опубликована: Фев. 2, 2024
River
ecosystem
biodiversity
and
biogeochemical
processes
are
shaped
largely
by
riverside
vegetation
soil.
Moreover,
river
ecosystems
provide
ecological
services
influenced
the
surrounding
soil
interactions.
However,
mechanisms
which
artificially
remediated
plants
(ARPs)
riparian
interact
to
these
benefits
still
unclear
among
various
ARPs.
This
study
fills
this
gap
examines
impact
of
ARPs
along
zones
Three
Gorges
Dam
(TGD)
in
Chongqing
City,
China.
We
sampled
four
varieties
from
Ruxi
Basin
TGD.
These
included
Cynodon
dactylon
,
Hemarthria
altissima
Taxodium
disticum
Salix
mastudana
.
Our
results
indicated
substantial
changes
physicochemical
parameters.
Comparably,
T.
distigum
contains
significantly
higher
chemical
contents.
Interestingly,
principal
component
analysis
explained
almost
100%
variance
for
all
plant
species
study.
different
types
properties
were
positively
correlated
using
Pearson
correlation
(
p
<
0.05).
Furthermore,
exhibited
strong
negative
correlations
with
physical
characteristics
(up
r
=
−1.00).
Specifically,
explain
interactions
between
areas
Hence,
may
facilitate
restoration
land
management
degraded
areas.
