Land,
Journal Year:
2023,
Volume and Issue:
12(3), P. 582 - 582
Published: Feb. 28, 2023
The
wetland
ecosystem
is
an
important
organic
carbon
pool
on
earth,
and
rich
storage
high
density
are
present
in
vegetation
soil.
However,
large
areas
of
wetlands
have
been
drained,
the
area
has
shrunk,
degree
fragmentation
intensified
due
to
rapid
urbanization
past
20
years.
Enhancing
ecological
sequestration
capacity
a
key
task
peaking
neutrality,
studying
function
urban
urgently
needed.
In
this
work,
Wuhan
was
taken
as
main
research
object.
landscape
pattern
index
calculated
evolution
characteristics
were
analyzed
using
remote
sensing
image
interpretation
data
from
2000
2020.
CASA
model
used
estimate
explore
spatial
temporal
distribution
sequestration.
Spearman
correlation
study
effects
different
parameters
Results
indicate
following:
(1)
From
2020,
total
reduced
by
158.99
km2,
among
which
lakes,
reservoirs
marshes
decreased
60.65
55.51
km2
41.77
respectively.
patches
irregularity
increased,
LPI,
aggregation
diversity
decreased.
(2)
years,
amount
first
then
lowest
2010
(571,900
t).
2020
same
that
2000,
reaching
800,000
t.
(3)
A
larger
means
more
concentrated
denser
distribution,
complex
shape,
diverse
type,
stronger
for
wetland.
On
contrary,
becomes
fragmented
regular,
disordered
planning
leads
reduction
types
unit
area,
will
decrease
sink
wetlands.
Remote Sensing,
Journal Year:
2023,
Volume and Issue:
15(4), P. 1152 - 1152
Published: Feb. 20, 2023
Understanding
the
long-term
dynamics
and
driving
factors
behind
small
micro
wetlands
is
critical
for
their
management
future
sustainability.
This
study
explored
impacts
of
natural
anthropogenic
on
spatiotemporal
evolution
these
areas
in
Wuxi
area
using
support
vector
machine
(SVM)
classification
method
geographic
detector
model
based
Landsat
satellite
image
data
from
1985
to
2020.
The
results
revealed
that:
(1)
Natural
were
prominent
area,
with
an
average
proportion
70%,
although
they
exhibited
a
downward
trend
over
last
ten
years,
scale
increased
1.5-fold—from
4349.59
hm2
10,841.59
(2)
had
obvious
seasonal
variations,
most
being
0.1–1
1–3
hm2,
respectively.
From
perspective
spatial
distribution,
primarily
distributed
Yixing
district,
which
accounts
34%
area.
(3)
distribution
was
systematically
affected
by
human
activities.
main
that
annual
temperature
GDP,
interactions
between
all
nonlinear
bi-linear.
influences
weakened,
activities
steadily
emerging
as
dominant
factor
distribution.
this
can
provide
supportive
scientific
basis
ecological
restoration
protection
wetlands.
Land,
Journal Year:
2023,
Volume and Issue:
12(3), P. 582 - 582
Published: Feb. 28, 2023
The
wetland
ecosystem
is
an
important
organic
carbon
pool
on
earth,
and
rich
storage
high
density
are
present
in
vegetation
soil.
However,
large
areas
of
wetlands
have
been
drained,
the
area
has
shrunk,
degree
fragmentation
intensified
due
to
rapid
urbanization
past
20
years.
Enhancing
ecological
sequestration
capacity
a
key
task
peaking
neutrality,
studying
function
urban
urgently
needed.
In
this
work,
Wuhan
was
taken
as
main
research
object.
landscape
pattern
index
calculated
evolution
characteristics
were
analyzed
using
remote
sensing
image
interpretation
data
from
2000
2020.
CASA
model
used
estimate
explore
spatial
temporal
distribution
sequestration.
Spearman
correlation
study
effects
different
parameters
Results
indicate
following:
(1)
From
2020,
total
reduced
by
158.99
km2,
among
which
lakes,
reservoirs
marshes
decreased
60.65
55.51
km2
41.77
respectively.
patches
irregularity
increased,
LPI,
aggregation
diversity
decreased.
(2)
years,
amount
first
then
lowest
2010
(571,900
t).
2020
same
that
2000,
reaching
800,000
t.
(3)
A
larger
means
more
concentrated
denser
distribution,
complex
shape,
diverse
type,
stronger
for
wetland.
On
contrary,
becomes
fragmented
regular,
disordered
planning
leads
reduction
types
unit
area,
will
decrease
sink
wetlands.
