Gaining
a
deeper
understanding
of
the
soil
organic
carbon
sequestration
potential
(SOCsp)
is
crucial
in
our
efforts
to
combat
climate
change,
reduce
emissions,
enhance
sinks,
and
achieve
sustainable
development
goals.
However,
there
dearth
spatial
information
specifically
for
China
this
field,
knowledge
regarding
factors
influencing
SOCsp
remains
somewhat
limited.
In
study,
we
used
legacy
data
collected
1980s
(1979-1985),
combined
with
climatic
landscape
zoning,
adopted
digital
mapping
techniques
prediction
models
density
were
built
at
each
five
depths.
The
results
showed
that
accuracy
0–30
cm
model
was
greater
than
30–100
model.
higher
northwestern,
northern,
eastern
lower
southeastern
Tibetan
Plateau
northeastern
China.
Relatively
high
predict
uncertainties
observed
around
Tien
Shan
Mountains,
part
Plateau,
0–1
m
depth
346.1
Pg
(1
=
1012
Kg),
which
accounted
23.51%
total.
Scale-
location-specific
effects
environmental
factors,
is,
land
use
conversion,
climate,
vegetation
on
SOCsp,
two-factor
being
one
factor
effects.
Our
findings
have
provided
scientific
basis
decision-making
support
change
responses.
specialized
investigations
studies
management
practices
are
still
necessary
estimate
achievable
reserves
more
accurately
implement
feasibility.
Journal of Rural Studies,
Год журнала:
2024,
Номер
108, С. 103268 - 103268
Опубликована: Апрель 16, 2024
Soil-based
carbon
farming
has
been
identified
in
previous
research
as
a
win-win
for
farm
productivity
and
the
mitigation
of
climate
change
through
sequestration.
However,
it
faces
numerous
barriers
to
adoption,
including
low
prices,
high
transaction
costs,
information
uncertainty
around
future
outcomes,
markets
policy
conditions.
Collaboration
between
landholders
other
stakeholders
proposed
potential
means
overcoming
some
these
barriers,
while
maximising
benefits
soil-based
farming.
In
this
article,
we
present
results
two-stage
process
investigating
collaborative
Australia,
involving
national-scale
key
informant
interviews
regional-scale
Participatory
Rural
Appraisal.
Fifty-three
were
undertaken
with
stakeholders,
landholders,
landholder
groups,
service
providers,
government,
researchers
financial
sector.
was
seen
offer
greatest
advantages
relation
knowledge-sharing
social
support,
followed
by
its
increase
income
enhanced
bargaining
power
optimisation
co-benefits.
The
collaboration
less
clear
reducing
costs
or
also
presents
new
challenges
risk
complexity.
Under
current
conditions,
informal
models
best
balance
risks,
existing
cooperatives
well-placed
diversify
into
carbon.
Alternative
conditions
locations
would
be
needed
facilitate
joint
projects,
pooled
credits,
shared
land
management
and/or
creation
carbon-specific
cooperatives.
Land,
Год журнала:
2024,
Номер
13(8), С. 1195 - 1195
Опубликована: Авг. 3, 2024
In
recent
years,
the
“dual
carbon”
issue
has
become
a
major
focus
of
international
community.
Changes
in
land
use
driven
by
anthropogenic
activities
have
profound
impact
on
ecosystem
structure
and
carbon
cycling.
This
study
quantitatively
assesses
spatiotemporal
changes
cropland
occupation
supplementation
Pearl
River
Delta
from
2000
to
2020
using
InVEST
model,
analyzing
spatial
clustering
storage
caused
variations
area.
The
PLUS
model
was
employed
simulate
land-use
patterns
distribution
four
future
development
scenarios.
results
indicate
following:
(1)
From
2020,
net
change
rate
area
−0.81%,
with
decrease
16.49
km2
area,
primarily
converted
built-up
forest
land.
(2)
Carbon
exhibited
pattern
lower
values
center
higher
periphery.
terrestrial
534.62
×
106
t
2000,
518.60
2010,
512.57
showing
an
overall
decreasing
trend.
conversion
main
reason
for
decline
total
regional
storage.
(3)
sequestration
lost
due
significantly
greater
than
loss
compensated
new
cropland,
indicating
imbalance
quality
as
crucial
factor
contributing
loss.
(4)
Under
ecological
priority
scenario,
expansion
reduction
such
were
effectively
controlled,
resulting
minimal
soil
organic
pool
is
most
active
ecosystems
significant
Clarifying
relationship
between
“cropland
protection
measures–land
changes–ecosystem
storage”
will
improve
policies,
provide
references
enhancement,
support
sustainable
socio-economic
development.
