Land,
Journal Year:
2025,
Volume and Issue:
14(4), P. 771 - 771
Published: April 3, 2025
The
surface
urban
heat
island
(SUHI)
effect,
driven
by
human
activities
and
land
cover
changes,
leads
to
elevated
temperatures
in
areas,
posing
challenges
sustainability,
public
health,
environmental
quality.
While
SUHI
drivers
at
large
scales
are
well-studied,
finer-scale
thermal
variations
remain
underexplored.
This
study
employed
the
Local
Climate
Zones
(LCZs)
framework
analyze
temperature
(LST)
dynamics
Zhengzhou,
China.
Using
2022
mean
LST
data
derived
from
a
single-channel
algorithm,
combined
with
field
surveys
remote
sensing
techniques,
we
examined
30
potential
driving
factors
spanning
natural
anthropogenic
conditions.
Results
show
that
built-type
LCZs
had
higher
average
LSTs
(31.10
°C)
compared
non-built
(28.91
°C),
showing
greater
variability
(10.48
°C
vs.
6.76
°C).
Among
five
major
factor
categories,
landscape
pattern
indices
dominated
LCZs,
accounting
for
44.5%
of
variation,
while
Tasseled
Cap
Transformation
indices,
particularly
brightness,
drove
42.8%
variation
non-built-type
LCZs.
Partial
dependence
analysis
revealed
wetness
fragmentation
reduce
whereas
GDP,
imperviousness,
cohesion
increase
it.
In
population
density,
connectivity,
brightness
raise
LST,
atmospheric
dryness
provide
cooling
effects.
These
findings
highlight
need
LCZ-specific
mitigation
strategies.
Built-type
require
form
optimization,
enhanced
expanded
green
infrastructure
accumulation.
Non-built
benefit
maintaining
soil
moisture,
addressing
dryness,
optimizing
vegetation
configurations.
provides
actionable
insights
sustainable
environment
management
resilience.
Ecological Indicators,
Journal Year:
2024,
Volume and Issue:
158, P. 111631 - 111631
Published: Jan. 1, 2024
Soil
salinization
has
become
the
most
expansive
form
of
soil
degradation
in
arid
and
semiarid
regions,
management
is
imperative
for
achieving
sustainable
development.
microorganisms
are
supposed
to
play
an
integral
role
controlling
salinization,
effects
high-salt
environments
on
microbial
community
have
been
widely
investigated,
but
there
currently
limited
comprehensive
study
taxon
co-occurrence
patterns
assembly
processes
under
different
salt
intensities.
Here,
based
high-throughput
sequencing
technologies,
we
analysed
bacterial
structure
mechanism
intensity
regions.
The
results
demonstrated
that
diversity
was
negatively
correlated
with
salinity,
also
varied
changes
intensity.
Solonchaks
(soils
high
soluble
accumulation)
had
lowest
average
degree
network,
a
lower
level
connectivity
correlation
among
bacteria
solonchaks
compared
other
salt-affected
soils.
highest
competitive
connections
were
detected
light-intensity
saline
soils,
whereas
overall
collaborative
increased
salinity.
For
network
stability,
rare
taxa
(with
each
taxon’s
relative
abundance
<
0.1%)
more
essential
than
abundant
(>
1%).
As
salinity
increased,
stochastic
gradually
dominated
assembly,
dispersal
limitation
contributed
from
45.18%
58.73%.
These
findings
offered
valuable
information
about
how
affected
would
be
useful
salinization.
Ecotoxicology and Environmental Safety,
Journal Year:
2024,
Volume and Issue:
284, P. 116903 - 116903
Published: Aug. 27, 2024
Ice,
water,
and
sediment
represent
three
interconnected
habitats
in
lake
ecosystems,
bacteria
are
crucial
for
maintaining
ecosystem
equilibrium
elemental
cycling
across
these
habitats.
However,
the
differential
characteristics
driving
mechanisms
of
bacterial
community
structures
ice,
sediments
seasonally
frozen
lakes
remain
unclear.
In
this
study,
high-throughput
sequencing
technology
was
used
to
analyze
compare
structure,
function,
network
characteristics,
assembly
communities
Wuliangsuhai,
a
typical
cold
region
Inner
Mongolia.
The
results
showed
that
ice
water
phases
had
similar
diversity
composition,
with
Proteobacteria,
Bacteroidota,
Actinobacteria,
Campilobacterota,
Cyanobacteria
as
dominant
phyla.
displayed
significant
differences
from
Chloroflexi,
Firmicutes,
Desulfobacterota,
Acidobacteriota
being
Notably,
exhibited
higher
spatial
variability
their
distribution
than
those
sediment.
This
study
also
revealed
during
period,
species
media
were
dominated
by
cooperative
relationships.
Community
primarily
influenced
stochastic
processes,
dispersal
limitation
drift
identified
two
most
factors
within
process.
heterogeneous
selection
played
role
composition.
Furthermore,
functions
related
nitrogen,
phosphorus,
sulfur,
carbon,
hydrogen
vary
among
These
findings
elucidate
intrinsic
structure
changes
quality
different
(ice,
sediment)
cold-zone
freezing
offering
new
insights
environmental
protection
ecological
restoration
efforts
such
environments.
Land Degradation and Development,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 10, 2025
ABSTRACT
Microbial
necromass
nitrogen
(MNN)
is
increasingly
recognized
as
a
major
source
of
soil
N,
playing
crucial
role
in
N
sequestration
and
sustaining
balance.
However,
quantitative
data
on
the
contribution
MNN
to
total
its
relationship
with
multifunctionality
(SMF)
karst
plantation
ecosystems
remain
lacking.
In
this
study,
(measured
via
amino
sugar
analysis)
SMF
(calculated
using
mean
value
method)
were
determined
across
five
plantations
unafforested
land
(control)
Wuling
Mountains
subtropical
China.
The
content
ranged
from
1.02
1.67
g
kg
−1
,
contributing
53.8%
75.4%
Cinnamomum
camphora
pure
forest
exhibiting
highest
values
among
all
stand
types
control.
afforestation
enhanced
nutrient
provision,
microbial
activity,
biomass,
increasing
by
54%
compared
functional
parameters
generally
higher
organic
horizon
than
topsoil
subsoil,
was
greater
subsoil.
Enzyme
stoichiometry
ratios
indicated
that
P
limitation
prevalent
both
control
soils,
positively
correlated
C/P
N/P
(
p
<
0.001).
Increases
closely
associated
SMF,
encompassing
available
(AN)
being
key
predictor
accumulation.
partial
least
squares
path
model
revealed
provision
contributed
accumulation,
AN
had
direct
effect
coefficient
0.72
it
0.01).
This
work
underscored
critical
potential
support
ecosystem
functioning
region.
Frontiers in Microbiology,
Journal Year:
2025,
Volume and Issue:
16
Published: Feb. 12, 2025
Soil
microbial
communities
are
integral
to
almost
all
terrestrial
biogeochemical
cycles,
which
essential
coastal
wetland
functioning.
However,
how
soil
bacterial
community
assembly,
composition,
and
structure
respond
native
non-native
plant
invasions
in
wetlands
remains
unclear.
In
this
study
of
the
Yellow
River
Delta
China,
diversity
associated
with
four
species
(
Phragmites
australis
,
Spartina
alterniflora
Suaeda
salsa
Tamarix
chinensis
)
depths
(0–10
cm,
10–20
20–30
30–40
cm)
were
characterized
using
high-throughput
sequencing.
Plant
identity,
as
well
environmental
factors,
rather
than
depth,
was
found
play
predominant
roles
shaping
communities.
S.
invasion
altered
increased
diversity.
-associated
enriched
sulfate-reducing
bacteria
such
Desulfurivibrio
Desulfuromonas
.
comparison,
both
SEEP-SRB1
sulfate-oxidizing
Sulfurimonas
),
maintained
a
dynamic
balance
local
sulfur-cycle,
thereby
enhanced
growth.
addition,
stochastic
processes
dominated
assembly
species,
but
most
important
for
community.
The
also
showed
stronger
interactions
more
extensive
connections
among
taxa;
co-occurrence
network
had
greatest
average
clustering
coefficient,
degree,
modularity,
number
links
nodes,
lowest
path
length.
Altogether,
individual
distinct
effects
on
structure,
invasive
having
strongest
impact.
These
results
provide
insights
into
ecology
inform
management
strategies
restoration.
