Based
on
the
panel
data
of
31
provinces
in
rural
China
from
1997
to
2020,
this
manuscript
firstly
applies
a
carbon
reduction
and
sequestration
(CRS)
model
perspective
agricultural
emissions
sinks.
And
then,
it
constructs
food
security
evaluation
system
four
dimensions
quantity
security,
quality
ecological
economic
security.
Finally,
spatial
Durbin
is
used
empirically
analyze
impact
moderating
effect
fiscal
decentralization.
The
results
show
that:
①
During
1997—2020,
showed
fluctuating
downward
trend,
while
an
increasing
trend
China.
②
Nationally,
short
term,
have
significantly
negative
While
long
positive
In
terms
control
variables,
planting
structure,
opening
world
development
urbanization,
technological
progress
environmental
regulation
③
decentralization
can
enhance
weaken
term.
For
major
grain-producing
regions
production-sales
balancing
regions,
shows
that
enhances
will
grain-selling
are
exactly
opposite.
Global
food
instability
is
attributable
to
multiple
significant
threats,
such
as
climate
change,
geopolitical
instability,
emerging
trade
policies,
health
crises,
and
insufficient
technological
readiness.
Agrifood
systems
are
implicated
at
various
interconnected
levels.
The
international
community,
along
with
subordinate
entities,
addressing
these
risks
by
formulating
specific
policies
methodologies.
This
review
adopts
a
holistic
approach
understanding
the
interactions
across
agrifood
systems,
encompassing
production,
processing,
transportation,
consumption.
methodology
involves
an
extensive
of
academic
literature,
case
studies,
statistical
data
from
global
organizations,
Food
Agriculture
Organization
(FAO),
assess
vulnerabilities
identify
sustainable
practices.
Key
sectors
within
agriculture,
agroecology,
organic
farming,
aquaculture,
hydroponics,
precision
agriculture
analyzed
for
their
potential
enhance
productivity
while
reducing
environmental
impact.
analysis
also
explores
widely
adopted
concepts,
methodologies
aimed
monitoring
disseminating
effective
practices
sector.
By
integrating
technologies
policy
frameworks,
underscores
critical
role
climate-smart
water
management,
agronomic
in
supporting
resilient
systems.
findings
provide
actionable
insights
advancing
security
achieving
sustainability
goals
support
decision-making
process.
Agriculture,
Год журнала:
2024,
Номер
14(3), С. 483 - 483
Опубликована: Март 16, 2024
Depending
on
the
type
of
agricultural
use
and
applied
crop
rotation,
soil
organic
carbon
accumulation
may
depend,
which
can
lead
to
less
CO2
fixation
in
global
cycle.
Less
is
known
about
emissions
different
production
systems
(cereals,
grasses)
using
agrotechnologies.
There
a
lack
more
detailed
studies
influence
content
plant
productivity,
as
well
links
between
physical
properties
absorption,
viability,
emission
greenhouse
gases
(GHG)
from
mineral
fertilizers.
The
aim
this
study
estimate
long-term
effect
sequestration
potential
rotations.
greatest
for
Norfolk-type
where
crops
that
reduce
fertility
are
replaced
by
increase
every
year.
Soil
was
significantly
higher
(46.72%)
compared
with
continuous
black
fallow
27.70
14.19%
field
row
cereal
rotations,
respectively,
intensive
rotation
saturated
intermediate
crops.
In
terms
sequestration,
it
most
effective
keep
perennial
grasses
one
year
while
still
full
undecomposed
straw
previous
crop.
Black
without
manure
fertilization,
reduces
amount
up
two
times,
management
index
2–5
poses
risk
agriculture.
Agronomy,
Год журнала:
2024,
Номер
14(9), С. 2176 - 2176
Опубликована: Сен. 23, 2024
Exogenous
organic
carbon
(C)
inputs
and
their
subsequent
microbial
mineral
transformation
affect
the
accumulation
process
of
soil
C
(SOC)
pool.
Nevertheless,
knowledge
gaps
exist
on
how
different
long-term
forms
crop
straw
incorporation
(direct
return
or
pyrolyzed
to
biochar)
modifies
SOC
composition
stabilization.
This
study
investigated,
in
a
13-year
field
experiment,
functional
fractions
protection
by
iron
(Fe)
oxide
minerals
soils
amended
with
biochar.
Under
equal
input,
was
enhanced
both
direct
(by
43%)
biochar
85%)
compared
non-amended
conventional
fertilization,
but
pathways.
Biochar
had
greater
efficiency
increasing
through
stable
exogenous
inhibition
respiration.
Moreover,
biochar-amended
contained
5.0-fold
SOCs
particulate
matter
(POM)
1.2-fold
more
mineral-associated
(MAOM)
relative
conventionally
fertilized
soils.
Comparatively,
although
magnitude
effect
smaller,
straw-derived
OC
preserved
preferentially
most
MAOM.
Straw
increased
nutrient
content
stimulated
activity,
resulting
increases
necromass
POM
MAOM
117%
43%,
respectively)
72%
18%).
promoted
poorly
crystalline
(Feo)
organically
complexed
(Fep)
Fe
oxides
accumulation,
were
significantly
positively
correlated
SOC.
The
results
address
decadal-scale
effects
application
formation
pool
soil,
understanding
causal
mechanisms
can
allow
practices
maximize
content.
These
are
great
implications
for
better
predicting
accurately
controlling
response
pools
agroecosystems
future
changes
disturbances
maintaining
regional
balance.
Soil Science Society of America Journal,
Год журнала:
2024,
Номер
88(5), С. 1767 - 1777
Опубликована: Июнь 26, 2024
Abstract
Management
can
affect
soil
quality
through
changes
in
carbon
(C)
stock,
especially
protected
C
fractions
of
aggregates.
Soil
aggregation
and
sequestration
may
be
improved
with
correction
(liming
gypsum)
nitrogen
(N)
fertilization,
but
it
is
not
clear
how
these
factors
might
interact
to
humic
substances.
The
objective
the
study
was
evaluate
effects
calcium
(Ca),
magnesium
(Mg),
N
fertilizatilizer
amendments
on
accumulation
C,
N,
substances
aggregates
from
an
Oxisoil
Brazil.
production
system
no‐till
soybean
[
Gycine
max
(L.)
Merr.]
double‐cropped
maize
(
Zea
mays
L.)
intercropped
forage
grass
since
2016.
Treatments
were
no
amendment,
lime
only,
+
phosphogypsum,
factorially
arranged
without
annual
fertilization
maize.
collected
at
0–10,
10–20,
20–40,
40–60
cm
6
years
after
initiation
experiment.
combination
lime,
gypsum,
led
13%
greater
total
stock
20%
within
0–60
profile
than
control.
Levels
fulvic
acid
(FA)
(HA)
similar
among
aggregate
classes,
humin
greatest
larger
Liming
plus
decreased
FA
HA,
gypsum
application
mitigated
this
negative
effect.
Application
limestone,
increased
humin,
mainly
surface
(0–10
cm).
storage
stabilization
enhanced
large
combined
use
humid
tropical
soils.
