Plant Soil and Environment,
Journal Year:
2024,
Volume and Issue:
70(5), P. 263 - 275
Published: April 10, 2024
Biochar
has
demonstrated
potential
for
stabilising
high
yields
and
sequestering
carbon
in
dryland
farmland,
but
it
is
unclear
whether
biochar
affects
the
sequestration
capacity
balance
of
annual
farmland
ecosystems.
For
this
purpose,
we
conducted
a
plot
control
trial
salinised
2019–2021,
where
set
three
treatments,
control,
two
rates,
0
(CK),
15
(B15),
30
t/ha
(B30).
The
results
showed
that
application
decreased
soil
organic
stocks
early
part
experiment
(first
freeze
period);
these
increased
later
part,
overall,
treatments
storage
by
3–6%
compared
with
control.
Compared
inhibited
total
respiration
rate
microbial
significantly
(P
<
0.05)
during
crop
growing
period
freeze-thaw
period.
After
years
cycling,
sunflower
plant
net
primary
productivity
suppressed
respiration,
thereby
increasing
ecosystem
productivity.
Therefore,
conducive
to
ecosystems
presents
sink
effect,
thus
being
good
choice
improving
pool
reducing
emissions
northern
dry
zone.
Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(31), P. 11357 - 11372
Published: July 26, 2023
Biochar,
a
carbon
(C)-rich
material
obtained
from
the
thermochemical
conversion
of
biomass
under
oxygen-limited
environments,
has
been
proposed
as
one
most
promising
materials
for
C
sequestration
and
climate
mitigation
in
soil.
The
contribution
biochar
hinges
not
only
on
its
fused
aromatic
structure
but
also
abiotic
biotic
reactions
with
soil
components
across
entire
life
cycle
environment.
For
instance,
minerals
microorganisms
can
deeply
participate
mineralization
or
complexation
labile
(soluble
easily
decomposable)
even
recalcitrant
fractions
biochar,
thereby
profoundly
affecting
cycling
Here
we
identify
five
key
issues
closely
related
to
application
review
outstanding
advances.
Specifically,
terms
use
pyrochar,
hydrochar,
stability
soil,
effect
flux
speciation
changes
emission
nitrogen-containing
greenhouse
gases
induced
by
production
application,
barriers
are
expounded.
By
elaborating
these
critical
issues,
discuss
challenges
knowledge
gaps
that
hinder
our
understanding
provide
outlooks
future
research
directions.
We
suggest
combining
mechanistic
biochar-to-soil
interactions
long-term
field
studies,
while
considering
influence
multiple
factors
processes,
is
essential
bridge
gaps.
Further,
standards
should
be
widely
implemented,
threshold
values
urgently
developed.
Also
needed
comprehensive
prospective
assessments
restricted
account
contributions
contamination
remediation,
quality
improvement,
vegetation
accurately
reflect
total
benefits
Eco-Environment & Health,
Journal Year:
2024,
Volume and Issue:
3(1), P. 59 - 76
Published: Jan. 3, 2024
Soil,
the
largest
terrestrial
carbon
reservoir,
is
central
to
climate
change
and
relevant
feedback
environmental
health.
Minerals
are
essential
components
that
contribute
over
60%
of
soil
storage.
However,
how
interactions
between
minerals
organic
shape
transformation
stability
remains
poorly
understood.
Herein,
we
critically
review
primary
mechanisms,
including
sorption,
redox
reaction,
co-precipitation,
dissolution,
polymerization,
catalytic
reaction.
These
interactions,
highly
complex
with
combination
multiple
processes,
greatly
affect
through
following
processes:
(1)
formation
or
deconstruction
mineral-organic
association;
(2)
oxidative
minerals;
(3)
polymerization
(4)
varying
association
according
mineral
transformation.
Several
pieces
evidence
related
turnover
during
interaction
in
real
eco-environment
then
demonstrated.
We
also
highlight
current
research
gaps
outline
priorities,
which
may
map
future
directions
for
a
deeper
mechanisms-based
understanding
storage
capacity
considering
its
minerals.
Input
of
biochar
into
soil
is
considered
as
an
efficient
technology
for
carbon
sequestration.
This
work
aimed
to
explore
if
the
extra
sorption
dioxide
(CO2)
exists
in
biochar-amended
soil,
which
has
not
yet
received
attention.
Here
we
put
and
mineral-rich
soils
perform
laboratory
CO2
experiments.
Our
results
demonstrate
that
all
increased
storage
meanwhile
further
sorb
more
The
Ca
or
Mg
originated
could
react
with
eventually
be
converted
inorganic
carbonate
minerals
amended
soil.
Further,
country-level
prediction
showed
cultivated
top
application
China
achieve
7.38–12.5
billion
tons
sequestration
additional
0.34–2.66
sorption.
require
us
take
consideration
both
sink
assessment
potential
Application
[5%]
sequester
around
10
China's
soils,
according
experiments
pristine
four
different
applications.
Biochar,
Journal Year:
2024,
Volume and Issue:
6(1)
Published: April 16, 2024
Abstract
The
regulation
of
the
pyrolysis
process
is
a
key
step
in
increasing
carbon
sequestration
capacity
biochar.
effect
K
3
PO
4
addition
on
yield,
chemical
composition,
characteristic
functional
groups,
macromolecular
skeleton,
graphite
crystallites,
and
stability
biochar
was
studied
this
paper
using
two-dimensional
infrared
correlation
spectroscopy
(2D-PCIS),
X-ray
photoelectron
spectroscopy,
Raman
spectrum,
other
characterization
methods
combined
with
thermal/chemical
oxidation
analysis.
It
discovered
that
adding
may
effectively
minimize
graphitization
temperature
range
increase
biochar's
aromaticity,
H/C
ratio,
proportion
refractory/recalcitrant
organic
carbon.
2D-PCIS
analysis
revealed
mostly
promoted
dehydrogenation
polycondensation
aromatic
rings
char
precursor,
transforming
amorphous
structure
into
an
ordered
turbostratic
microcrystalline
structure.
enhanced
at
medium-high
temperatures
(350
~
750℃)
by
stimulating
transformation
unstable
structures
to
stable
carbon-containing
or
inhibiting
interaction
its
active
sites
oxidants
through
mineralization
process.
A
20%
phosphorus
increased
refractory
index
(R
50
)
roughly
11%,
it
also
boosted
resistance
(H
2
O
CrO
efficiency,
reducing
loss
up
7.31%.
However,
higher
(>
750
℃),
doping
atoms
skeleton
degraded
structure's
stability.
results
study
suggest
exogenous
phosphorus-containing
additives
efficient
way
improve
Graphical
abstract
Biochar,
Journal Year:
2024,
Volume and Issue:
6(1)
Published: June 5, 2024
Abstract
Fe–Mn
oxide
modified
biochar
(FMBC)
was
produced
to
explore
its
potential
for
remediation
of
Hg–Cd
contaminated
paddy
soils.
The
results
showed
that
the
application
FMBC
decreased
contents
bioavailable
Hg
and
Cd
by
41.49–81.85%
19.47–33.02%
in
contrast
CK,
while
amount
labile
organic
carbon
(C)
fractions
C-pool
management
index
(CPMI)
increased
under
BC
treated
soils,
indicating
enhancement
soil
C
storage
nutrient
cycling
function.
Dry
weight
different
parts
Oryza
sativa
L.
enhanced
after
addition
FMBC,
Fe
Mn
root
iron–manganese
plaques
(IMP)
were
1.46–2.06
6.72–19.35
times
higher
than
those
control
groups.
brown
rice
treatments
significantly
reduced
18.32–71.16%
59.52–72.11%
compared
with
control.
altered
composition
metabolism
function
bacterial
communities,
especially
increasing
abundance
keystone
phyla,
including
Firmicutes
,
Proteobacteria
Actinobacteria.
Partial
least
squares
path
modelling
(PLSPM)
revealed
Na
2
S
O
3
–Hg,
DTPA–Cd
IMP
key
indicators
affecting
accumulation
grains.
These
demonstrate
simultaneous
value
combined
pollution
restoring
fertility
biological
productivity.
Graphical
Abstract
Minerals
in
soil
can
sequester
atmospheric
carbon
dioxide
through
natural
organic
and
inorganic
processes.
Here
we
consider
three
soil-
mineral-based
methods
for
removal:
(1)
grinding
spreading
of
calcium-
magnesium-rich
silicate
rocks
enhanced
rock
weathering
subsequent
formation,
(2)
mineral
doping
biomass
prior
to
conversion
into
biochar
yield
stability,
(3)
strategic
application
minerals
increase
accrual
stability.
We
argue
that
there
are
powerful
synergies
between
these
approaches
removal
pathways.
find
primary
silicates,
as
contained
basalt,
benefit
both
while
phyllosilicates
other
reactive
secondary
may
have
positive
carbon.
Optimising
such
substantially
enhance
economic
environmental
benefits,
yet
require
accurate
quantification.
