Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 12, 2023
Abstract
Watershed
ecosystems
play
a
pivotal
role
in
maintaining
the
global
carbon
cycle
and
reducing
warming
by
serving
as
vital
reservoirs
for
sustainable
ecosystem
management.
In
this
study,
we
based
on
"quantity-mechanism-scenario"
frameworks
to
evaluate
stocks
mid
high
latitudes
alpine
watersheds
China
explored
mechanisms
of
climate
change
land
use
influence
ability
watershed
store
carbon.
The
results
showed
that
stock
increased
about
15.9
Tg
from
1980
2020.
Vegetation,
precipitation,
land-use
change,
economic
production
have
strongest
explanatory
power
stocks.
Under
different
scenarios,
it
was
found
SSP2-4.5
scenario
had
significant
rise
2020
2050,
roughly
24.1
Tg.
This
increase
primarily
observed
southeastern
region
basin,
with
forest
grassland
effectively
protected.
Conversely,
according
SSP5-8.5
scenario,
would
decrease
50.53
expansion
cultivated
construction
basin's
southwest
part.
Therefore,
given
vulnerability
mountain
watersheds,
trends
continue
pose
greater
threat
sequestration
watersheds.
Our
findings
carry
important
implications
tackling
potential
ecological
threats
Northern
Hemisphere
assisting
policymakers
creating
plans,
well
change.
GIScience & Remote Sensing,
Год журнала:
2024,
Номер
61(1)
Опубликована: Май 10, 2024
Accurately
and
timely
quantifying
the
dynamics
of
urban
sprawl
is
essential
for
improving
land
use
efficiency
planning.
However,
existing
research
mainly
focused
on
a
single
city
or
agglomerations
in
China,
while
national
scale
studies
used
short-term
remote
sensing
data
to
quantify
sprawl.
Therefore,
we
still
lack
long
term
most
up-to-date
understanding
especially
different
regions,
cities
sizes.
Here,
quantified
spatiotemporal
using
index
(USI)
based
latest
population
census,
analyzed
its
driving
force
China
during
2000
~
2020
optimal
parameters-based
geographical
detector.
The
results
showed
that
past
two
decades,
Chinese
were
experiencing
sprawl,
with
an
average
USI
3.04,
indicating
annual
growth
rate
lands
was
3.04%
higher
than
population.
Overall,
slowdown,
dropping
from
3.55
2010
2.53
2020.
Among
more
severe
western
region,
where
5.33
89.3%
exceeded
speed.
Recently,
transportation
substantially
increased.
In
future,
Territorial
Spatial
Planning
should
pay
attention
confining
excessive
small-
medium-sized
region
China.
Forests,
Год журнала:
2024,
Номер
15(2), С. 303 - 303
Опубликована: Фев. 5, 2024
Climate
change
mitigation
and
carbon
neutrality
are
current
hot
topics.
Forests,
urban
green
spaces,
wetland
ecosystems
recognized
as
important
sinks.
The
Yangtze
River
Delta
region
in
Eastern
China,
which
plays
a
pivotal
role
China’s
economic
social
development,
is
rich
such
carbon-sink
resources.
There
is,
however,
lack
of
regional
data.
investigation
storage
densities
forest,
space,
therefore,
great
importance.
In
this
study,
the
forest
resource
management
map
(including
wetland)
space
system
planning
Changzhou
city,
combined
with
field
laboratory
experimental
analysis,
were
used
to
estimate
storages
city.
average
density
83.34
±
4.91
Mg
C
ha−1
11.30
0.67
Tg
C,
respectively,
soil
accounted
for
74%,
plants
25%,
litter
less
than
1%.
ecosystem
contributed
most
pool
(72%),
each
accounting
14%
pools.
Clearly,
city
have
large
capacity.
This
study
significance
it
provides
data
on
sink
functions
at
provincial
national
scales.
Frontiers in Environmental Science,
Год журнала:
2025,
Номер
13
Опубликована: Фев. 20, 2025
Introduction
Karst
regions
are
integral
to
the
global
carbon
cycle.
However,
land
use
changes
of
karst
driven
by
urbanization
and
desertification
contribute
instability
storage,
leading
uncertainties
in
future.
Understanding
these
instabilities
is
crucial
for
formulating
sequestration
management
strategies.
Methods
This
study
employed
Patch-generating
Land
Use
Simulation
(PLUS)
Integrated
Valuation
Ecosystem
Services
Trade-offs
(InVEST)
estimate
introduced
Coefficient
Variation
(CV)
assess
uncertainty.
Multiscale
Geographically
Weighted
Regression
(MGWR)
was
applied
explore
mechanisms,
while
Polynomial
(PR)
identified
stable
intervals
factors,
informing
land-use
policies.
Results
Discussion
(1)
From
2000
2020,
Guiyang’s
storage
rose
from
136.62
Tg
142.13
Tg.
By
2035,
projections
under
natural
development,
urban
expansion,
ecological
protection
scenarios
increases
147.50
Tg,
147.40
147.82
respectively.
(2)
Carbon
increased
uncertainty
expected
decrease
2035.
Instability
primarily
due
transitions
Cropland-Forest,
Forest-Cropland,
Cropland-Grassland,
Cropland-Impervious,
mainly
arise
Grassland-Impervious
transitions.
(3)
DEM,
AI,
Distance
national
highways,
SHDI,
Mean
annual
precipitation
affected
significantly.
(4)
Encouraging
Shrub-Forest,
Shrub-Cropland
Cropland-Forest
conversions,
controlling
Forest-Shrub,
Cropland-Impervious
conversions
within
can
enhance
reduce
establishes
a
methodology
evaluating
regions,
which
an
extension
research.
Frontiers in Ecology and Evolution,
Год журнала:
2025,
Номер
13
Опубликована: Апрель 7, 2025
Introduction
Ecosystem
services
(ESs)
assessment
plays
a
significant
role
in
managing
ecological
resources.
From
the
perspective
of
land
use,
this
research
aims
to
uncover
complex
interdependence
between
ESs
and
their
key
drivers
clarify
optimize
function
zoning
region.
Methods
This
focuses
on
Henan
Province
China,
quantifying
five
ESs,
namely,
carbon
storage
(CS),
habitat
quality
(HQ),
soil
conservation
(SC),
water
(WC),
yield
(WY),
assessing
interactions
from
2000
2020
2035.
Moreover,
study
explores
social
-
driving
factors
influencing
these
ESs.
Finally,
it
classifies
types
ecosystem
service
bundles
(ESBs).
Results
(1)
2020,
use
evolution
was
characterized
by
large
expansion
construction
land,
continuous
decrease
cultivated
area,
relatively
stable
changes
other
types.
In
protection
(EP)
scenario
2035,
area
decreased
most,
forest
increased
slightly.
CS
HQ
showed
trend
degradation,
while
SC,
WY,
WC
first
fluctuated
then
increased.
(2)
The
synergistic
relationship
each
main
one,
among
which
WC-WY,
CS-HQ
HQ-SC
relationships,
CS-WC
HQ-WC
change
trade-off
relationship,
were
mainly
relationships.
Meanwhile,
most
B4
central
part
region
dominated,
rest
volatility.
(3)
Elevation
slope
are
dominant
restricting
spatiotemporal
distribution
CS,
HQ,
SC.
Temperature
precipitation
primary
conditions
affecting
differentiation
WY
WC.
interaction
topographic
climatic
has
greater
impact
than
single
factor.
Discussion
conclusion,
during
period
there
spatio-temporal
heterogeneity
various
functions
Province.
Approaches
such
as
exploring
relationships
different
ecosystems
classifying
clusters,
discussing
potential
can
provide
references
for
territorial
space
governance
environment
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Апрель 15, 2025
Water
resources
of
water
transfer
projects
are
not
only
used
to
solve
the
scarcity
problem
in
water-receiving
area
but
also
change
regional
carbon
absorption
capacity.
Using
Jiangsu-Shandong
section
East
Route
South-to-North
Diversion
Project
(ER-SNWDP)
China
as
a
case
study,
this
study
explored
dynamic
variation
stocks
response
diversion
project
context
neutrality.
The
results
showed
that
(1)
After
ER-SNWDP
came
into
operation,
there
was
trend
growth
area.
Based
on
multi-scenario
simulation,
under
scenario,
built-up
land
expansion
would
be
curbed,
forest
and
grassland
reductions
alleviated,
areas
increase
significantly
compared
natural
scenario.
(2)
Due
implementation
project,
research
had
better
sequestration
Under
scenario
from
2015
2025,
stock
decrease
by
1228.35
×
104
t.
However,
an
262.84
In
addition,
resource
allocation
may
affect
spatial
distribution
stocks.
northeast
region,
particularly
Binzhou
Dongying
with
large
volumes,
significant,
center
gravity
tended
tilt
these
areas.
(3)
Land
use
highest
explanatory
power
driving
force
for
According
interaction
factor
analysis,
strongest
after
2005
"land
∩
nighttime
lights",
indicating
between
socio-economic
factors
gradually
amplified
impact
This
provides
scientific
basis
future
planning,
promotes
rational
optimal
resources,
prospective
reference
cope
climate
achieve
