Urbanized and climatic influences on vegetation changes of urban green space under the increase of atmospheric NOX: A case study in Tianjin
Ecological Indicators,
Год журнала:
2024,
Номер
165, С. 112222 - 112222
Опубликована: Июнь 13, 2024
Язык: Английский
Distribution pattern and composition difference of urban spontaneous plants of multi-mountainous city
Global Ecology and Conservation,
Год журнала:
2025,
Номер
59, С. e03564 - e03564
Опубликована: Апрель 1, 2025
Язык: Английский
Genome-Wide Resequencing Revealed the Genetic Diversity of Fraxinus platypoda Oliv. in Northwestern China
Forests,
Год журнала:
2025,
Номер
16(5), С. 860 - 860
Опубликована: Май 21, 2025
Fraxinus
platypoda
Oliv.
(Oleaceae),
an
ecologically
and
economically
valuable
tree
species
with
key
distribution
areas
in
northwestern
China,
faces
conservation
challenges
due
to
its
fragmented
groups
scarce
individual
numbers.
To
investigate
the
genetic
consequences
of
this
demographic
crisis,
we
analyzed
65
individuals
from
11
natural
region
using
whole-genome
resequencing.
We
identified
a
total
60,503,092
single
nucleotide
polymorphisms
(SNPs),
after
further
filtering,
retained
3,394,299
SNPs
for
subsequent
analysis.
Population
structure
analysis
(Neighbor-Joining
tree,
STRUCTURE,
kinship
coefficients)
revealed
two
distinct
clusters
(K
=
2),
principal
component
(PCA)
confirming
subdivision.
Cluster
I,
composed
eight
Groups
3,
5,
8,
11,
is
highly
differentiated
II
may
be
ancestral
it.
Among
groups,
3
show
high
diversity
differentiation,
Tajima’s
D
>
0,
indicating
long
evolutionary
history
balancing
selection.
The
remaining
nine
have
low
diversity,
frequent
gene
flow,
<
suggesting
directional
A
mantel
test
showed
no
significant
link
between
variation
geographic
isolation
(p
0.460).
differentiation
I
flow
are
maintained
by
factors
like
reproductive
systems.
highlighted
as
important
resources
deserving
priority
protection.
This
study
offers
genomic
data
conserving
future
adaptability
research.
Язык: Английский
Uniqueness evaluation indicators for woody plant communities in urban park green spaces based on importance value: a case study in Qingdao city
Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Ноя. 30, 2023
Abstract
There
is
a
lack
of
objective
evaluation
indicators
and
methods
for
comparing
the
uniqueness
plant
communities
in
different
urban
parks.
In
this
study,
we
propose
two
woody
parks
based
on
ecological
importance
value
(IV):
mean
non-overlapping
IV
(MNIV)
local
contribution
to
beta
diversity
(LCBD1).
Subsequently,
investigated
evaluated
eight
hill
(numbered
Parks
1‒8)
Qingdao.
A
total
101
species
were
found,
with
an
average
23.88
±
5.96
found
each
park.
The
Shannon‒Wiener
index
Pielou
plants
Qingdao
range
2.54‒3.40
0.94‒0.98,
respectively.
results
MNIV,
LCBD1,
principal
coordinate
analysis
cluster
all
indicate
that
Park
4
8
are
most
unique
among
hilltop
was
very
significant
(P
<
0.01)
positive
correlation
between
MNIV
LCBD1.
LCBD1were
significantly
0.05)
negatively
correlated
Pinaceae
positively
Anacardiaceae,
Cannabiaceae,
Ginkgoaceae
plants.
conclusion,
study
offers
assessing
other
green
spaces.
This
valuable
research
park
Язык: Английский
Evaluation of the diversity and uniqueness of woody plant communities in park forests transformed form forest patches on urban hills
Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 13, 2023
Abstract
In
the
process
of
urbanization,
forest
patches
on
hills
are
transformed
into
urban
park
forests,
their
functions
changing
from
production
to
ecological
and
landscape.
The
diversity
uniqueness
plant
communities
support
landscape
parks,
but
there
is
a
lack
indicators
methods
assess
uniqueness.
We
propose
two
evaluation
for
woody
community
in
parks
based
importance
value
(IV,
average
relative
abundance,
frequency,
dominance):
mean
non-overlapping
IV
(MNIV)
local
contribution
beta
(LCBD1).
Subsequently,
we
investigated
evaluated
eight
hill
(Parks
1–8)
Qingdao.
A
total
101
species
were
found,
with
an
23.88
±
5.96
per
park.
Shannon-Wiener
Pielou
indices
ranges
1.42–3.13
0.48–0.91,
respectively.
Results
principal
coordinate
analysis
cluster
orders
MNIV
LCBD1
suggest
that
Parks
4
8
have
most
unique
communities.
was
significantly
(P
<
0.05)
positively
correlated
indexes,
while
abundance.
negatively
Pinaceae
IVs
Anacardiaceae,
Cannabiaceae,
Ginkgoaceae
plants.
Therefore,
diversities
residual
show
great
variations.
characteristic
plants
key
factors
affecting
Язык: Английский