Land Degradation and Development,
Journal Year:
2023,
Volume and Issue:
34(15), P. 4561 - 4574
Published: June 30, 2023
Abstract
Ecological
security
is
a
vital
component
of
regional
and
significantly
influences
sustainable
development.
The
assessment
ecological
the
cornerstone
relative
research
to
coordinate
protection
economic
developments.
However,
framework
that
enables
systematic
still
needs
further
exploration.
A
includes
ecosystem
organization
(
O
),
quality
Q
services
S
)
was
proposed
evaluate
in
southeast
Qinghai‐Tibet
Plateau
(QTP)
this
study.
Results
showed
that:
(1)
From
2000
2020,
study
area
an
improving
trend,
with
61.33%
counties
experiencing
increase
value;
(2)
increasing
proportion
increased
areas
amounting
54.46%,
occupied
3.38%
area;
(3)
total
trend
decreased,
among
them,
habitat
provision
soil
conservation
both
presented
while
water
yield
performed
decreased
trend;
(4)
QTP
has
been
improved,
which
north
south
part.
Overall,
our
provided
novel
view
characterize
physical
status
natural
environment
enriched
methodology
assessment.
More
attention
should
be
received
by
different
roles
organization,
quality,
future
studies,
helpful
reflect
current
situation
changing
trends
more
reasonably
comprehensively.
Global Ecology and Conservation,
Journal Year:
2024,
Volume and Issue:
50, P. e02850 - e02850
Published: Feb. 16, 2024
Land
use
patterns
affect
soil
erosion
processes
and
conservation
services.
Identifying
key
landscape
pattern
affecting
services
is
critical
for
improving
optimizing
land
patterns.
In
this
study,
the
Qinghai-Tibet
Plateau
(QTP),
where
ecosystem
are
important,
was
selected
as
research
area.
Based
on
use,
meteorological,
vegetation
data,
RUSLE
model
used
to
estimate
quantitatively
from
2000
2020.
The
temporal
changes
in
metrics
were
analyzed
using
Fragstats,
response
of
by
correlation
analysis.
showed
an
obvious
change
trend.
general,
overall
QTP
became
more
diversified
fragmented,
shape
tended
become
complicated.
Patch
density
(PD),
edge
(ED),
index
(LSI),
splitting
(SPLIT),
Shannon's
diversity
(SHDI),
evenness
(SHEI)
increasing
trends,
while
largest
patch
(LPI),
mean
area
(AREA_MN),
aggregation
(AI),
contagion
(CONTAG)
decreasing
trends.
At
class
level,
variations
different
types
big
difference.
20-year
period,
generally
rise.
spatial
heterogeneity
decreased
south-east
north-west.
PD
ED
positively
correlated
with
function,
AREA_MN
AI
had
a
negative
function.
effect
metric
variation
capacity
significantly
differed
among
types.
Results
offer
reasonable
evidence
management,
water
retention
function
improvement
regional
ecological
protection
QTP.
