Geocarto International,
Journal Year:
2023,
Volume and Issue:
38(1)
Published: Sept. 7, 2023
Rapid
urbanization
poses
significant
challenges
to
ecological
preservation
in
karst
ecologically
fragile
regions.
Systematically
monitor
and
evaluate
of
its
urban
pattern
change
driving
factors
are
the
basis
for
achieving
regional
sustainable
development.
Taking
Gui'an
New
Area(GNA)
China
as
object,
using
Google
Earth
Engine(GEE)
cloud
platform,
Remote
Sensing
Ecological
Index(RSEI)
method
Geodetector
study
quality(EQ)
changes
between
2010
2020.
The
results
show
that:
(1)
An
overall
increase
RSEI
(0.12),
with
concentrated
+1
0
range,
revealing
spatial
autocorrelation.
(2)
Comparing
LU/LC
types,
forest
showed
highest
RSEI,
followed
by
shrub,
cropland,
impervious,
grassland,
barren
areas.
(3)
Among
considered,
interaction
greenness
had
most
influence,
was
primary
external
factor
affecting
EQ.
result
provides
a
reference
decision
makers
formulate
protection
policies
implement
coordinated
development
strategies.
Sustainability,
Journal Year:
2022,
Volume and Issue:
14(20), P. 13232 - 13232
Published: Oct. 14, 2022
The
Ulan
Mulun
River
Basin
is
an
essential
ecological
protective
screen
of
the
Mu
Us
Desert
and
a
necessary
energy
base
in
Ordos
City.
With
acceleration
industrialization
urbanization,
human
activities
have
caused
enormous
challenges
to
local
environment.
To
achieve
region’s
economic
sustainability
make
development
plans
more
objective,
it
evaluate
basin’s
environment
quality
over
period
time.
First,
Landsat
historical
images,
we
selected
5
years
data
investigate
changes
this
time-period
(2000–2020).
Second,
based
on
opened
remote
sensing
database
Google
Earth
Engine,
calculated
remote-sensing
index
(RSEI)
distribution
map.
RSEI
includes
greenness,
temperature,
humidity,
dryness.
Thirdly,
assessed
ecological-environmental
change
characteristics
Basin.
Finally,
analyzed
spatial
auto-correlation
study
area.
mean
values
2000,
2005,
2010,
2015,
2020
were
0.418,
0.421,
0.443,
0.456,
0.507,
respectively,
which
indicated
that
had
gradually
improved.
from
2000
2005
biggest
change,
as
area
with
drastically
changed
water
levels
accounted
for
78.98%
total
basin.
It
showed
downward
trend
central
western
regions.
upward
eastern
region.
For
20
years,
deterioration
decreased
by
24.37%,
slight
increased
45.84%.
Global
Moran’s
I
value
ranged
0.324
0.568.
results
demonstrated
was
positively
correlated,
clustering
degree
gradually.
Local
high-high(H-H)
mainly
distributed
southern
regions,
where
population
density
low
vegetation
good
condition.
Low-low(L-L)
regions
high,
industrial
mining
enterprises
concentrated.
This
provided
theoretical
basis
sustainable
Basin,
crucial
development.
Geocarto International,
Journal Year:
2023,
Volume and Issue:
38(1)
Published: Sept. 7, 2023
Rapid
urbanization
poses
significant
challenges
to
ecological
preservation
in
karst
ecologically
fragile
regions.
Systematically
monitor
and
evaluate
of
its
urban
pattern
change
driving
factors
are
the
basis
for
achieving
regional
sustainable
development.
Taking
Gui'an
New
Area(GNA)
China
as
object,
using
Google
Earth
Engine(GEE)
cloud
platform,
Remote
Sensing
Ecological
Index(RSEI)
method
Geodetector
study
quality(EQ)
changes
between
2010
2020.
The
results
show
that:
(1)
An
overall
increase
RSEI
(0.12),
with
concentrated
+1
0
range,
revealing
spatial
autocorrelation.
(2)
Comparing
LU/LC
types,
forest
showed
highest
RSEI,
followed
by
shrub,
cropland,
impervious,
grassland,
barren
areas.
(3)
Among
considered,
interaction
greenness
had
most
influence,
was
primary
external
factor
affecting
EQ.
result
provides
a
reference
decision
makers
formulate
protection
policies
implement
coordinated
development
strategies.
