Land,
Journal Year:
2024,
Volume and Issue:
13(11), P. 1838 - 1838
Published: Nov. 5, 2024
Desert
ecosystems,
particularly
in
arid
regions
like
the
Tengger
Desert,
are
highly
sensitive
to
both
anthropogenic
activities
and
climate
change,
making
monitoring
evaluation
of
ecological
quality
critical
for
sustainable
management
restoration
efforts.
This
study
analyses
spatiotemporal
evolution
from
2001
2021
using
Remote
Sensing
Ecological
Index
(RSEI),
incorporating
meteorological
factors
(temperature,
precipitation,
wind
speed),
topographical
(elevation,
slope,
relief)
indices
(land
use
land
cover).
The
mean
RSEI
fluctuated
between
0.1542
0.2906,
indicating
poor
quality,
with
a
peak
2008
attributed
national
projects.
Despite
initial
improvements,
overall
declined
at
rate
0.0008
a−1
2021.
Spatially,
degradation
was
most
pronounced
central
southern
areas.
Due
sand-binding
engineering
mountain
suitable
vegetation
growth,
improvements
occurred
northeast
southwest.
Moran’s
I
Hurst
index
revealed
significant
spatial
clustering
persistence
trends,
over
49.53%
area
projected
experience
further
deterioration.
Geodetector
analysis
identified
cover
as
influential
on
RSEI,
especially
combination
speed,
temperature,
underscoring
role
human
climate.
highlights
need
sustained
management,
areas
showing
continuous
degradation,
prevent
Land,
Journal Year:
2024,
Volume and Issue:
13(7), P. 1078 - 1078
Published: July 17, 2024
The
interactions
between
economic
development,
environmental
sustainability,
population
growth,
and
urbanization
are
vital
in
assessing
the
ecological
dynamics
of
urban
agglomerations.
This
study
explores
relationship
within
Xia-Zhang-Quan
agglomeration
Fujian
Province
from
1989
to
2022.
Utilizing
Landsat
remote
sensing
images,
we
calculated
Remote
Sensing
Ecological
Index
(RSEI)
evaluate
changes
quality.
results
show
that
average
RSEI
values
for
1989,
2000,
2010,
2022
were
0.5829,
0.5607,
0.5827,
0.6195,
respectively,
indicating
an
initial
decline
followed
by
a
significant
increase,
culminating
overall
upward
trend.
spatial
distribution
classification
shows
area
has
largest
proportion
mainly
“good”
areas
with
“excellent”
quality
increased
(13.41%
25.12%
2022),
while
those
“general”
decreased
(28.03%
21.21%
2022).
Over
past
three
decades,
Xiamen
experienced
substantial
degradation
(RSEI
change
−0.0897),
Zhangzhou
showed
marked
improvement
0.0519),
Quanzhou
exhibited
slight
deterioration
−0.0396).
Central
typically
had
poorer
conditions
but
signs
improvement,
whereas
non-central
regions
demonstrated
enhancement.
factor
detector
analysis
identified
land
use
as
dominant
influencing
quality,
precipitation
having
relatively
minor
impact.
Interaction
revealed
all
other
factors
bi-variable
enhancement
or
nonlinear
enhancement,
suggesting
interactive
effects
these
greater
than
individual
alone.
Land
consistently
solid
explanatory
power.
Temperature
also
influence
when
interacting
factors.
Due
planning
can
plan
use,
findings
suggest
effective
harmonize
development
protection
agglomeration.
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(19), P. 8615 - 8615
Published: Sept. 24, 2024
The
Rapid
expansion
of
the
Lanzhou–Xining
(Lanxi)
urban
cluster
in
China
during
recent
decades
poses
a
threat
to
fragile
arid
environment.
Quantitatively
assessing
impact
on
vegetation
Lanxi
has
profound
implications
for
future
sustainable
planning.
This
study
investigated
dynamics
and
its
impacts
regional
between
2001
2021
based
time
series
land
cover
data
auxiliary
remote
sensing
data,
such
as
digital
elevation
model
(DEM)
nighttime
light
administrative
boundary
data.
Thereinto,
were
evaluated
using
annual
Land
Cover
Dataset
(CLCD,
2001–2021).
Urban
assessed
via
Vegetation
Disturbance
Index
(VDI),
an
index
capable
quantitatively
positive
negative
at
pixel
level,
which
can
be
obtained
by
overlaying
Enhanced
(EVI)
rainfall
major
findings
indicate
that:
(1)
Over
past
two
decades,
region
experienced
rapid
expansion,
with
built-up
area
expanding
from
183.50
km2
294.30
km2,
is
average
rate
2.39%.
Notably,
Lanzhou,
Baiyin,
Xining
dominated
expansion.
(2)
negatively
affected
approximately
53.50
vegetation,
while
about
39.56
saw
impacts.
effects
mainly
due
loss
cropland
grassland.
Therefore,
cities
drylands
should
balance
development
conservation
strictly
controlling
grassland
occupancy
promoting
intelligent
growth.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Oct. 19, 2024
In
low
mountain
and
hilly
regions,
vegetation
cover
is
higher
plant
growth
has
an
accumulative
effect,
sequestering
carbon
more
strongly.
The
traditional
remote
sensing
based
ecological
index
(RSEI)
lacks
the
consideration
of
productivity,
using
it
to
evaluate
environment
in
regions
will
be
biased.
this
study,
productivity
was
introduced
construct
a
natural
(NRSEI)
that
responds
as
example
Gaizhou
City,
China.
Additionally,
study
explored
spatiotemporal
evolution
quality
from
2014
2020
quantified
influences
factors.
results
show
first
principal
component
(PC1)
increased
56
67%
65–87%
considered
accumulation
process
ecosystem.
NRSEI
valid.
From
2020,
generally
declined
then
increased.
area
with
"Excellent"
23
38%.
ecosystems
west,
northwest,
south
deteriorated
significantly,
distribution
pattern
"high
center,
north
south".
Landuse
topographic
conditions
dominate
impacts
on
ecosystem
context
social,
economic
policy
influences.
interactions
factors
were
two-factor
enhancement
together
affect
environment.
contribute
development
urban
conservation
policies
regions.
Land,
Journal Year:
2024,
Volume and Issue:
13(11), P. 1838 - 1838
Published: Nov. 5, 2024
Desert
ecosystems,
particularly
in
arid
regions
like
the
Tengger
Desert,
are
highly
sensitive
to
both
anthropogenic
activities
and
climate
change,
making
monitoring
evaluation
of
ecological
quality
critical
for
sustainable
management
restoration
efforts.
This
study
analyses
spatiotemporal
evolution
from
2001
2021
using
Remote
Sensing
Ecological
Index
(RSEI),
incorporating
meteorological
factors
(temperature,
precipitation,
wind
speed),
topographical
(elevation,
slope,
relief)
indices
(land
use
land
cover).
The
mean
RSEI
fluctuated
between
0.1542
0.2906,
indicating
poor
quality,
with
a
peak
2008
attributed
national
projects.
Despite
initial
improvements,
overall
declined
at
rate
0.0008
a−1
2021.
Spatially,
degradation
was
most
pronounced
central
southern
areas.
Due
sand-binding
engineering
mountain
suitable
vegetation
growth,
improvements
occurred
northeast
southwest.
Moran’s
I
Hurst
index
revealed
significant
spatial
clustering
persistence
trends,
over
49.53%
area
projected
experience
further
deterioration.
Geodetector
analysis
identified
cover
as
influential
on
RSEI,
especially
combination
speed,
temperature,
underscoring
role
human
climate.
highlights
need
sustained
management,
areas
showing
continuous
degradation,
prevent
