The Science of The Total Environment,
Год журнала:
2020,
Номер
731, С. 138988 - 138988
Опубликована: Май 4, 2020
Biochar
is
produced
from
a
wide
range
of
organic
materials
by
pyrolysis,
specifically
for
improvement
poor
quality
soils.
One
the
main
issues
nowadays
in
studying
biochar
as
soil
amendment
to
upscale
experiments
and
move
short-term,
laboratory
conditions
long-term
field
trials.
This
paper
presents
study,
being
final
step
scale-up
technology
development,
on
grain
husk
fibre
sludge
application
with
focus
two
degraded
types
temperate
region.
The
effects
an
acidic
calcareous
sandy
agricultural
were
studied
applying
complex
approach
including
physico-chemical,
biological
ecotoxicological
methods.
Our
study
demonstrated
that
applied
had
positive
direct
indirect
influences
soil,
but
these
different
terms
extent
time.
30
t/ha
addition
improved
pH
24%
also
increased
significantly
nutrient
concentrations
(P2O5
68%,
K2O
11%
matter
33%),
water-holding
capacity
after
months.
Furthermore,
microbiological
activity
diversity
soil.
did
not
induce
any
negative
effects.
no
toxic
effect
plants
biochar-treated
provided
more
liveable
habitat
living
animals
than
untreated
favourable
biochar-mediated
properties
manifested
mainly
proving
biochar-related
advantages
have
be
verified
types.
benefits
confirmed
long
term
tiered
approach.
Agronomy,
Год журнала:
2021,
Номер
11(5), С. 993 - 993
Опубликована: Май 17, 2021
Biochar
is
gaining
significant
attention
due
to
its
potential
for
carbon
(C)
sequestration,
improvement
of
soil
health,
fertility
enhancement,
and
crop
productivity
quality.
In
this
review,
we
discuss
the
most
common
available
techniques
biochar
production,
main
physiochemical
properties
biochar,
effects
on
including
physical,
chemical,
biological
parameters
quality
fertility,
nutrient
leaching,
salt
stress,
addition,
impacts
addition
salt-affected
heavy
metal
contaminated
soils
were
also
reviewed.
An
ample
body
literature
supports
idea
that
amended
with
has
a
high
increase
concomitant
in
structure,
use
efficiency
(NUE),
aeration,
porosity,
water-holding
capacity
(WHC),
among
other
amendments.
However,
increases
biochar-amended
are
frequently
reported
coarse-textured
sandy
compared
fine-textured
fertile
soils.
effect
microbial
community
composition
abundance.
The
negative
polluted
have
plant
growth
yield
components
such
as
aggregation
stability
can
be
ameliorated
by
application
biochar.
Moreover,
positive
been
observed
when
was
applied
organic
inorganic
amendments
fertilizers.
decrease
nitrogen
(N)
leaching
volatilization
well
NUE.
some
biomass
activity
reported.
There
evidence
sorb
retain
pesticides
long
periods
time,
which
may
result
weed
infestation
control
cost.
Geoderma,
Год журнала:
2023,
Номер
437, С. 116591 - 116591
Опубликована: Июль 11, 2023
Biochar
has
been
widely
applied
as
a
soil
modifier
to
improve
the
physical
properties
and
increase
water
content
of
soil.
Although
response
hydrological
biochar
extensively
studied,
effect
on
in
different
textures
not
comprehensively
quantified.
Here,
we
performed
meta-analysis
939
observations
quantify
effects
retention
capacity
with
textures.
The
field
(FC)
available
(AWC)
was
greater
coarse-textured
soils
(23.8%,
25.6%)
than
those
medium-
(5.0%,
20.9%)
fine-textured
(7.2%,
11.5%).
permanent
wilting
point
increased
(19.9%),
decreased
medium-textured
(−4.2%),
did
change
considerably
affected
by
biochar.
We
demonstrated
that
FC
is
always
main
driver
AWC.
In
soils,
there
high
correlation
between
properties.
addition,
specific
surface
area,
functional
groups,
cation
exchange
are
important
factors
affecting
Our
study
establishes
differences
texture
cause
heterogeneity
mechanisms
which
improves
retention.
Environmental Science & Technology,
Год журнала:
2019,
Номер
53(14), С. 8466 - 8476
Опубликована: Июнь 20, 2019
Several
cities
in
Sweden
are
aiming
for
climate
neutrality
within
a
few
decades
and
negative
emissions
thereafter.
Combined
biochar,
heat,
power
production
is
an
option
to
achieve
carbon
sequestration
relying
on
biomass-fuelled
district
heating,
while
biochar
use
could
mitigate
environmental
pollution
greenhouse
gas
from
the
agricultural
sector.
By
using
prospective
life
cycle
assessment,
impact
of
pyrolysis
woodchips
Stockholm
compared
with
two
reference
scenarios
based
woodchip
combustion.
The
produces
heat
city
Stockholm,
whose
potential
as
feed
manure
additive
Swedish
dairy
farms
explored.
change
mitigation
trade-off
between
bioenergy
Stockholm's
context
dominated
by
fate
marginal
power.
If
decarbonisation
achieved,
building
new
plant
becomes
better
than
conventional
Effects
cascading
animal
husbandry
uncertain
but
provide
10–20%
more
direct
soil
incorporation.
These
results
help
design
regional
systems
that
combine
dioxide
increased
methane
nitrous
oxide
efforts
can
also
guide
development
minimum
performance
criteria
products.
Land,
Год журнала:
2019,
Номер
8(12), С. 179 - 179
Опубликована: Ноя. 23, 2019
Biochar
is
one
of
the
most
affordable
negative
emission
technologies
(NET)
at
hand
for
future
large-scale
deployment
carbon
dioxide
removal
(CDR),
which
typically
found
essential
to
stabilizing
global
temperature
rise
relatively
low
levels.
has
also
attracted
attention
as
a
soil
amendment
capable
improving
yield
and
quality
reducing
greenhouse
gas
(GHG)
emissions.
In
this
work,
we
review
literature
on
biochar
production
potential
its
effects
climate,
food
security,
ecosystems,
toxicity.
We
identify
three
key
factors
that
are
largely
affecting
environmental
performance
application
agricultural
soils:
(1)
condition
during
pyrolysis,
(2)
conditions
background
(3)
field
management
biochar.
using
only
forest
or
crop
residues
can
achieve
up
10%
required
CDR
1.5
°
C
pathways
about
25%
2
pathways;
consideration
dedicated
crops
feedstocks
increases
15–35%
35–50%,
respectively.
A
quantitative
life-cycle
assessment
(LCA)
studies
systems
shows
total
climate
change
ranges
between
net
0.04
tCO
eq
reduction
1.67
per
tonnes
feedstock.
The
wide
range
values
due
different
assumptions
in
LCA
studies,
such
type
feedstock,
stability
soils,
emissions,
substitution
effects,
methodological
issues.
Potential
trade-offs
mitigation
other
impact
categories
include
particulate
matter,
acidification,
eutrophication
mostly
depend
energy
system
considered
whether
used
production.
Overall,
our
finds
soils
presents
risks
terms
impacts
improve
decisions
regarding
feedstock
mix
pyrolysis
be
optimized
maximize
benefits
reduce
under
conditions.
However,
more
knowledge
fate
freshwater
black
emissions
required,
they
represent
consequences
interact
with
through
many
complex
mechanisms
(i.e.,
surface
albedo,
from
etc.)
water
bodies
leaching
nutrients.
These
lack
simplified
metrics
approaches
prevents
their
routine
inclusion
studies.
Specific
produced
sophisticated
ecosystem
models
instrumental
increasing
resolution
accuracy
sustainability
analysis
ultimately
characterization
heterogeneities
varying
local
combinations
conversion
process,
conditions,
practice.