Study on the Distribution Range and Influencing Factors of Salix oritrepha Schneid. and Picea crassifolia Kom. in the Watershed of the Yellow River Under Future Climate Models
Shengqi Jian,
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Lingan Kong,
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Shentang Dou
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et al.
Forests,
Journal Year:
2025,
Volume and Issue:
16(3), P. 448 - 448
Published: March 2, 2025
The
watershed
of
the
Yellow
River
is
an
important
water
conservation
area
in
Basin.
Its
fragile
ecological
environment,
climate
change
and
unreasonable
human
activities
have
led
to
continuous
degradation
plant
community
structure
watershed.
This
study
only
considers
environmental
factors,
based
on
MaxEnt,
Garp
other
niche
models
spatial-temporal
analysis
methods
such
as
Mess
MoD
analysis,
explore
suitable
areas
Salix
oritrepha
Schneid.
(First
published
C.S.Sargent,
Pl.
Wilson.
3:
113
(1916))
Picea
crassifolia
Kom.
Bot.
Mater.
Gerb.
Glavn.
Sada
R.S.F.S.R.
4:
177
(1923))
under
different
emission
scenarios
future.
results
show
that
MaxEnt
model
has
a
good
simulation
effect.
In
terms
spatial
distribution,
two
species
are
mainly
concentrated
southeastern
part
source
area.
Compared
with
current
period
(1970–2000),
by
2070,
each
scenario
showed
distribution
high
east
low
west,
obvious
expansion
trend
moving
altitude
latitude.
According
MoD,
annual
average
temperature
(Bio_1)
may
be
most
variable
affecting
future
vegetation
types.
Language: Английский
Common Species in the Subtropical Evergreen Broad-Leaved Forest: Dominance in Adaptation Mechanisms and Resource Utilization Capabilities
Forests,
Journal Year:
2024,
Volume and Issue:
15(12), P. 2239 - 2239
Published: Dec. 20, 2024
When
species
of
different
abundance
coexist,
their
ecological
strategies
remain
uncertain.
Assessing
the
functional
diversity
and
niche
characteristics
with
levels
contributes
to
understanding
vegetation
properties
is
essential
for
conservation.
Based
on
380
plots
in
Gutianshan
subtropical
evergreen
broad-leaved
forest
Zhejiang
Province
China,
woody
plants
were
categorized
as
common
(86
species),
occasional
(87
rare
(79
species).
Plant
traits,
including
maximum
height,
seed
dispersal
modes,
first
flowering
stage,
duration,
fruit
length,
used
assess
community
common,
occasional,
species,
while
15
environmental
factors
evaluate
Levins’
breadth
Pianka’s
overlap.
The
results
showed
that
have
highest
evenness,
dispersion
Rao’s
quadratic
entropy
higher
(2.05
5.07,
respectively)
compared
(1.57
3.10)
(1.35
2.48).
Furthermore,
15-dimensional
mean
value
(ranging
from
0.277
0.955)
was
also
than
0.193
0.710)
0.100
0.345),
same
trend
observed
suggest
diverse
traits
a
greater
ability
adapt
environment
use
resources,
whereas
limited
environment.
Rare
are
evenly
distributed
within
space
reduce
direct
competition
other
but
they
thrive
only
under
specific
conditions,
mainly
following
K
reproductive
strategy.
Niche
differentiation
mechanisms
important
determinants
coexistence
forests.
In
summary,
more
attention
efforts
should
be
paid
conservation
species.
Our
findings
could
help
managers
restoration
Language: Английский