Ecological Processes,
Год журнала:
2024,
Номер
13(1)
Опубликована: Окт. 3, 2024
Abstract
Bcakground
Soil
respiration
(Rs),
as
the
second
largest
CO
2
emissions
of
terrestrial
ecosystems,
is
sensitive
to
disturbance
and
consequent
environmental
changes.
Mowing
strategically
implemented
an
management
approach
has
potential
influence
carbon
cycling
in
meadow
steppes.
However,
it
remains
unclear
how
why
Rs
its
heterotrophic
(Rh)
autotrophic
(Ra)
components
respond
consecutive
mowing
associated
ecological
consequences.
Here,
we
conducted
a
field
experiment
steppe
2018
monitored
Rs,
Rh,
Ra
from
2019
2022.
Results
We
observed
significant
reduction
by
4.8%
across
four
years,
primarily
attributed
decrease
Rh.
This
decline
intensified
over
time,
indicating
accumulative
effect
mowing.
In
addition,
induced
generally
increasing
Ra/Rs
ratio
experimental
years
with
simultaneous
increase
belowground
aboveground
biomass
(BGB/AGB).
Furthermore,
structural
equation
modeling
results
revealed
that
was
largely
ascribed
reduced
microbial
(MBC)
under
mowing,
while
increased
explained
enhanced
BGB/AGB.
Partial
regression
analysis
suggested
biotic
factor
dominated
changes
soil
rather
than
abiotic
temperature.
Conclusions
Our
findings
showed
decreased
raised
decreasing
plant
altering
proportion
allocation.
would
help
reduce
concentration
atmosphere
well
alleviate
global
warming.
considering
concurrent
lower
biomass,
positive
impacts
on
climate
ecosystem
function
should
be
reevaluated
future
grassland
practices.
Frontiers in Plant Science,
Год журнала:
2023,
Номер
14
Опубликована: Окт. 12, 2023
The
variation
of
organic
carbon
content
in
spoil
heaps
is
closely
related
to
improving
soil
structure,
maintaining
fertility,
and
regulating
cycling
balance.
Analyzing
the
driving
factors
during
natural
vegetation
restoration
process
great
significance
for
promoting
accumulation
heaps.we
selected
with
same
number
years
research
variations
components
under
different
types
(grassland:
GL,
shrubland:
SL,
secondary
forest:
SF)
compared
results
those
on
bare
land
(BL).Our
showed
that
type
depth
significantly
affect
components.
There
was
no
difference
between
SF
but
both
were
considerably
superior
GL
BL
(p<0.05),
particulate
(POC)
light
fraction
(LFOC)
contents
SL
highest.
A
significant
positive
linear
correlation
existed
SOC
active
Pearson's
redundancy
analysis
available
potassium
(AK)
total
nitrogen
(TN)
gravel
(GC)
impacted
carbon.
When
present,
TN,
phosphorus
(TP),
Fine
root
biomass
(FRB)
Structural
equation
modelling
(SEM)
shows
AK
moisture
(SMC)
directly
composition
BL,
there
cover,
fine
had
largest
effect
SEM.
Soil
bulk
density
(BD)
has
a
negative
impact
carbon,
especially
presence
vegetation.These
findings
suggest
can
increase
content,
FRB,
AK,
TN
play
important
roles
enhancing
Supplementation
should
be
considered
stage,
shrubs
nitrogen-fixing
functions
well-developed
roots
are
more
beneficial
Land Degradation and Development,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 22, 2025
ABSTRACT
Soil
health
is
pivotal
to
sustain
biological
productivity,
maintain
environmental
quality,
and
ensure
the
of
plants,
animals,
ultimately
humans.
Global
changes—such
as
climate
warming,
elevated
CO₂
atmospheric
concentration,
droughts,
floods—as
well
human
impacts
like
land‐use
change,
chemical
contamination,
application
fertilizer
pesticides,
threaten
soil
health.
Protecting
raising
global
awareness
on
this
topic
are
now
critical
sustainable
management
natural
agricultural
ecosystems
under
change.
This
Special
Issue
includes
19
studies
in
three
thematic
groups.
The
first
group
methodological
advances
assessment
health,
exploring
new
tools,
techniques,
approaches
for
accurate
evaluation.
second
encompasses
examining
how
responds
forestry
practices.
third
addresses
human‐induced
pollution
its
effects
Overall,
these
provide
contemporary
insight
into
managed
methods
These
contributions
will
shape
strategies
functions
preserve
healthy
soils
future
generations,
including
efforts
meet
Sustainable
Development
Goals
21st
century.
Advances in environmental engineering and green technologies book series,
Год журнала:
2025,
Номер
unknown, С. 201 - 228
Опубликована: Фев. 28, 2025
The
climate
crisis
poses
a
substantial
risk
to
achieving
global
food
security
and
sustainability.
This
chapter
presents
an
analysis
of
the
current
level
knowledge
regarding
agroforestry's
ability
promote
simultaneously
resilience,
availability,
eco-friendly
land
use.
Agroforestry
systems
(AFS)
are
recognized
as
potent
carbon
(C)
sinks,
effectively
reducing
atmospheric
dioxide
(CO2)
levels.
It
is
estimated
that
trees
in
AFS
can
sequester
0.3-24
tC
ha-1
yr-1.
AFS,
which
occupy
about
1
billion
ha
worldwide,
have
potential
remove
more
than
10GtC
yr-1
from
atmosphere
if
fully
optimized.
C
sequestration
benefits
be
monetized
by
farmers,
providing
supplementary
income
source
through
credit
market.
In
addition
sequestration,
provide
numerous
co-benefits
such
food,
biodiversity
conservation,
soil
erosion
control,
water
cycling.
key
strategy
for
counteracting
excessive
emissions.
