Agronomy,
Journal Year:
2024,
Volume and Issue:
14(10), P. 2207 - 2207
Published: Sept. 25, 2024
To
investigate
the
long-term
effects
of
organic
manure
on
soil
macro-porosity
and
nutrient
stoichiometry
in
greenhouse
production,
we
studied
physical
chemical
properties
soils
under
different
vegetable
systems
Jiangsu
Province.
These
included
(OGV),
open-field
(OFV),
conventional
(CGV),
(CFV),
with
rice–wheat
rotation
(RWR)
used
as
a
reference.The
results
showed
that,
compared
to
systems,
production
increased
macro-porosity,
carbon
(SOC),
total
nitrogen
(TN)
content,
well
C:N,
C:P,
N:P,
particularly
tilled
layer.
SOC,
TN,
phosphorus
(TP)
levels
rapidly
during
first
14
years
OGV
cultivation,
followed
by
decline.
stoichiometric
ratios
were
significantly
positively
correlated
macro-porosity.
The
study
suggests
that
converting
RWR
does
not
degrade
aeration,
application
impacts
retention
layer,
although
are
time-
depth-dependent.
highlights
potential
improve
aeration
balance
OGV,
underscoring
importance
optimizing
fertilizer
management
intensive
agriculture
enhance
quality
crop
yield.
Ecological Processes,
Journal Year:
2023,
Volume and Issue:
12(1)
Published: Sept. 18, 2023
Abstract
Background
Soil
fauna
is
an
important
driver
of
carbon
(C)
and
nitrogen
(N)
release
from
decomposing
litter
in
forest
ecosystems.
However,
its
role
C
N
cycling
concerning
climate
traits
remains
less
known.
In
a
4-year
field
experiment,
we
evaluated
the
effects
soil
on
across
elevation
gradient
(453,
945,
3023,
3582
m)
(coniferous
vs.
broadleaf)
southwestern
China.
Results
Our
results
showed
that
was
retained
by
–0.4%
to
31.5%,
but
immediately
released
during
early
stage
(156–516
days)
decomposition
for
most
species.
significantly
increased
peak
content
retention
species,
reduced
C/N
ratio
certain
species
(i.e.,
Juniperus
saltuaria
,
Betula
albosinensis
Quercus
acutissima
Pinus
massoniana
litter),
leading
more
being
gradient.
Contributions
were
3.87–9.90%
1.10–8.71%,
respectively,
after
4
years
decomposition.
environment
initial
quality
factors
caused
directly
affected
release.
Changes
resulting
exclusion
had
direct
or
indirect
impact
Conclusions
findings
suggest
promote
different
magnitudes,
mainly
controlled
environmental
conditions
temperature
moisture),
lignin
cellulose
content,
lignin/cellulose),
diversity
Forests,
Journal Year:
2025,
Volume and Issue:
16(2), P. 328 - 328
Published: Feb. 13, 2025
Afforestation
has
been
considered
to
be
the
cost-effective
way
sequestrate
carbon
(C)
dioxide
from
atmosphere
in
soils,
while
concurrent
responses
of
soil
inorganic
C
(SIC)
and
organic
(SOC),
their
turnover
are
still
not
well-defined.
During
cycle,
is
enriched
heavy
isotopes
(13C),
C,
due
photosynthetic
fractionation,
light
(12C).
This
leads
distinct
isotope
fractionation
terrestrial
ecosystems.
In
this
study,
72
paired
soils
(0–20
cm)
poplar
shelterbelts
adjacent
farmland
sites
were
collected
six
regions
(Zhaozhou,
Fuyu,
Dumeng,
Zhaodong,
Lanling,
Mingshui)
northeastern
China.
Five
fractions
dissolved
(DOC),
particulate
matter
(POM),
sand
stable
aggregates
(S
+
A),
silt
clay
C),
resistant
SOC
(rSOC)
bulk
used
content
assay
natural
δ13C
determination.
The
results
showed
that,
compared
with
SOC,
resulted
SIC
accrual
across
all
sites;
however,
only
half
accrual,
indicating
an
ambiguous
effect
afforestation
on
SOC.
method
could
identify
owing
isotopic
discrimination.
δ13C–SOC-derived
ratio
was
23%.
When
included
measurement,
four
S
A,
rSOC,
DOC)
a
2%–10%
lower
percentage
than
ratios.
inclusion
dependency
δ13C–TC
(TC
=
SOC)
values
(negative,
R2:
0.21–0.44)
(positive,
0.39–0.63).
By
contrast,
when
excluded,
δ13C–SOC
independent
them
(R2
<
0.18).
Redundancy
ordination
analysis
manifested
that
more
together
POM
farming
uses
would
accompanied
values.
Moreover,
forest
characteristics
(e.g.,
age
density)
backgrounds
crop
history
distance
between
farmland)
explain
differences
δ13C-related
features.
Our
highlighted
determination
underestimated
general.
However,
storage
should
sequestration
evaluation
general
pattern
those
Biology,
Journal Year:
2021,
Volume and Issue:
10(11), P. 1141 - 1141
Published: Nov. 5, 2021
Litter
decomposition
is
an
important
soil
nutrient
source
that
promotes
vegetation
in
deteriorated
riparian
zones
worldwide.
The
periodic
submergence
and
sediment
burial
effects
on
two
prominent
annual
herbaceous
plants
(Echinochloa
crusgali
Bidens
tripartite)
are
little
known
mega-reservoir
settings.
Our
study
focuses
the
mass
carbon
loss
release
from
E.
B.
tripartitle
litter
changes
properties,
which
for
zone
rehabilitation
Three
Gorges
Dam
Reservoir,
China.
This
adopted
bag
method
to
explore
change
characteristics
properties
at
different
depths
under
flooding
scenarios.
(0
cm,
5
10
cm)
were
used
these
plants,
experiment
lasted
180
days.
results
revealed
decay
rate
was
high
first
incubation
experiment,
followed
pattern
of
K
>
P
N
C.
relationship
between
%
C
remaining
nearly
1:1,
total
amount
exhibited
a
leaching-enrichment-release
state
process.
Nutrients
changed
significantly
overlying
water
stage.
Still,
insignificant
end,
except
cm
tripartitle.
Moreover,
oxidation-reduction
potential
main
factor
process
depths.
indicated
deposition
reduced
loss,
slowed
down
P,
retained
more
C,
but
promoted
K.
Conclusively,
waterlogging,
content
little.
However,
does
than
that.
Therefore,
it
necessary
residual
litter's
continuous
output
after
level
declines
restoration
purposes.
Land Degradation and Development,
Journal Year:
2024,
Volume and Issue:
35(8), P. 2840 - 2856
Published: March 17, 2024
Abstract
Nitrogen
(N)
metabolism
is
a
key
metabolic
pathway
of
nutrient
cycling
in
forest
ecosystems.
However,
the
mechanisms
by
which
mixed
plantation
litter
improves
microbial
N
transformation
are
poorly
understood.
Thus,
we
investigated
characteristics,
metabolism‐related
genes,
and
modules
soil
three
types
forests:
coniferous
(CP
forest),
broadleaf
(BP
forests
(MCBP
forest).
Results
indicated
that
total
(TN),
hydrolysable
organic
(THON),
percentage
values
NH
4
+
‐N/TN
NO
3
−
BP
MCBP
were
higher
than
those
CP
litter,
was
attributed
to
increase
abundance
fixation
genes
dissimilatory
nitrate
reduction
genes.
The
increased
bacterial
number
diversity,
taxa.
Bacterial
1
2
identified,
consisting
Acidobacteria,
Actinobacteria,
Chloroflexi,
Nitrospirae,
Proteobacteria,
Gemmatimonadetes,
while
archaeal
module
5
also
module,
comprising
Thaumarchaeota
Euryarchaeota.
Nutrients
limiting
factor
decomposition
further
influencing
enzymes.
Therefore,
during
northern
China.