Abstract.
Nitrogen
(N)
fertilization
has
received
worldwide
attention
due
to
its
benefits
soil
fertility
and
productivity,
but
excess
N
application
also
causes
an
array
of
ecosystem
dis-services,
such
as
greenhouse
gas
emissions.
Generally,
microorganisms
are
considered
be
involved
in
upholding
a
variety
services
dis-services.
However,
the
linkages
between
microbial
traits
under
different
fertilizer
rates
remain
uncertain.
To
address
this,
4-year
situ
field
experiment
was
conducted
meadow
on
Northeast
China
Plain
after
straw
return
with
following
treatments
combined
regular
phosphorus
(P)
potassium
(K)
fertilization:
(i)
(N+PK);
(ii)
25
%
reduction
(0.75N+PK);
(iii)
50
(0.5N+PK);
(IV)
no
(PK).
Ecosystem
services,
dis-services
responded
distinctly
rates.
Treatment
0.75N+PK
had
overall
positive
effects
fertility,
decomposition,
abundance
function
alleviated
deficiency.
Meanwhile,
upregulated
aboveground
biomass
C:N
thus
increased
genes
encoding
cellulose-degrading
enzymes,
which
may
imply
potential
ability
C
turnover.
In
addition,
most
observed
changes
were
strongly
associated
modules
keystone
taxa.
Specifically,
Lasiosphaeriaceae-driven
module
1
community
promoted
degradation
release,
while
Terrimonas-driven
3
contributed
production
improvement,
conducive
multifunctionality.
Therefore,
our
results
suggest
that
chemical
is
optimal
for
achieving
services.
This
study
highlights
importance
abiotic
biotic
factors
health
supports
green
agricultural
development
by
optimizing
return.
npj Sustainable Agriculture,
Год журнала:
2024,
Номер
2(1)
Опубликована: Июнь 7, 2024
Abstract
Organic
waste
treatment
is
a
major
driver
of
global
carbon
emissions,
thus
its
low-carbon
utilization
essential
yet
unclear.
Through
life
cycle
assessment
organic
data
from
34
provincial-level
regions
in
China,
we
have
determined
that
the
synergistic
and
integrated
scheme
(URIRP)
with
fertilizer
biochar
as
primary
products
can
reduce
annual
emissions
6.9
Mt
CO
2
e
to
2.83
e.
This
reduction
offset
6%
electricity
industry
mainly
through
sequestration
by
application
biochar-based
fertilizer,
fossil
fuel
displacement
bio-energy.
Moreover,
URIRP
promote
recycling
N
P,
emission
air
pollutants
866
Mt,
increase
topsoil
matter
content
0.25‰
economic
efficiency
135%.
These
findings
indicate
could
realize
sustainable
management
UROSW
significant
environmental
benefits,
contribute
realization
China’s
neutrality
goal.
Bioresources and Bioprocessing,
Год журнала:
2024,
Номер
11(1)
Опубликована: Июль 9, 2024
Abstract
Earthworm
cultivation
can
effectively
promote
the
resource
utilization
of
agricultural
waste.
The
efficient
waste
by
earthworms
mainly
depends
on
microbial
communities
in
guts.
This
study
used
silkworm
excrement
and
cow
manure
as
substrates
for
earthworm
investigated
associated
bacterial
during
earthworms’
growth.
survival
rate
remained
above
89%
after
21
days
feeding
with
two
substrates.
Proteobacteria
,
Actinobacteria
Firmicutes
constituted
predominant
growth,
accounting
over
81%
relative
abundance
both
guts
vermicompost.
bacteria
richness
diversity
foregut
midgut
were
lower
than
those
hindgut.
prediction
function
intestinal
cultured
involved
biosynthesis,
decomposition
energy
production.
Frontiers in Environmental Science,
Год журнала:
2023,
Номер
10
Опубликована: Янв. 5, 2023
Nutrient
recovery
and
recycling
are
of
great
importance
in
sustainable
development.
Blackwater
(BW)
refers
to
wastewater
from
toilets,
which
contains
feces,
urine,
water,
toilet
paper
flush
toilets.
The
highly
concentrated
nutrients
blackwater
could
be
collected
through
source
separation
treated
adequately
recover
efficiently
economically.
review
intends
give
an
overview
the
characteristics
BW
different
techniques
other
valuable
products.
A
number
these
technologies
currently
under
development
or
being
tested
at
laboratory
pilot
scale.
perspective
for
nutrient
is
very
positive
due
their
potential.
For
application
source-oriented
sanitation
infrastructure
systems,
there
still
a
long
way
go
commercial
Diversity,
Год журнала:
2024,
Номер
16(6), С. 311 - 311
Опубликована: Май 22, 2024
This
study
explored
the
dynamics
of
bacterial
community
composition,
response
to
environmental
factors,
and
co-occurrence
network
models
across
different
habitats
Wuliangsuhai
Lake
during
glacial
period.
Water
quality
analysis
high-throughput
sequencing
were
performed
at
14
monitoring
sites
within
lake.
Additionally,
a
between
two
operational
taxonomic
unit
(OTU)-OTUs
was
established.
The
results
indicated
significant
differences
in
water
indices,
namely
total
nitrogen
(TN),
chemical
oxygen
demand
(COD),
dissolved
solids
(TDS),
salinity
(SAL),
chlorophyll-a
(Chl.a),
electrical
conductivity
(EC),
ice
bodies
subglacial
water.
Although
there
no
α
diversity
various
media,
substantial
observed
β
diversity.
VIF
RDA
analyses
revealed
that
lake
factors
significantly
affected
microbial
structure
COD
TDS
had
highest
explanation
for
composition
change.
Network
demonstrated
competition
dominated
with
higher
complexity
stability
body
bacteria
exhibited
more
reciprocal
relationships
weaker
resistance
external
disturbances.
modular
environment,
g_Flavobacterium,
f_Arcobacteraceae,
g_Sphingobacteriaceae
being
main
keystone
species.
Investigating
habitat
heterogeneity
communities
identifying
major
groups
key
species
using
molecular
ecological
their
topological
effects
can
provide
theoretical
foundation
assessing
structural
ecosystems
cold
regions.
SOIL,
Год журнала:
2024,
Номер
10(2), С. 779 - 794
Опубликована: Ноя. 5, 2024
Abstract.
Nitrogen
(N)
fertilization
has
received
worldwide
attention
due
to
its
benefits
with
regard
soil
fertility
and
productivity,
but
excess
N
application
also
causes
an
array
of
ecosystem
degenerations,
such
as
greenhouse
gas
emissions.
Generally,
microorganisms
are
considered
be
involved
in
upholding
a
variety
functions.
However,
the
linkages
between
cropland
properties
microbial
traits
under
different
fertilizer
rates
remain
uncertain.
To
address
this,
4-year
situ
field
experiment
was
conducted
meadow
from
Northeast
China
Plain
after
straw
return
following
treatments
combined
regular
phosphorus
(P)
potassium
(K)
fertilization:
(i)
(N
+
PK),
(ii)
25
%
reduction
(0.75N
(iii)
50
(0.5N
(IV)
no
(PK).
Cropland
responded
distinctly
rates.
Treatment
0.75N
PK
had
overall
positive
effects
on
fertility,
decomposition,
abundance
functioning
alleviated
effects.
Specifically,
significant
difference
observed
organic
carbon
(SOC),
total
N,
P
content,
C,
release
amounts,
biomass
cellulase
N-acetyl-D-glucosaminidase
activities,
which
were
all
significantly
higher
than
0.5N
PK.
Greenhouse
emissions
reduced
decreasing
input
levels.
Moreover,
highest
yield
measured
PK,
Meanwhile,
up-regulated
aboveground
C:N
thus
increased
genes
encoding
cellulose-degrading
enzymes,
may
imply
potential
ability
C
turnover.
In
addition,
most
changes
strongly
associated
modules
keystone
taxa.
The
Lasiosphaeriaceae
within
module-1
community
showed
correlations
degradation
rate
release,
while
Terrimonas
module-3
correlation
production,
conducive
multifunctionality.
Therefore,
our
results
suggest
that
chemical
is
optimal
for
achieving
This
study
highlights
importance
abiotic
biotic
factors
health
supports
green
agricultural
development
by
optimizing
return.
Frontiers in Microbiology,
Год журнала:
2023,
Номер
14
Опубликована: Апрель 6, 2023
In
this
study,
the
influence
of
Fe
3+
on
N
removal,
microbial
assembly,
and
species
interactions
in
a
biofilm
system
was
determined.
The
results
showed
that
maximum
efficiencies
ammonia
nitrogen
(NH
4
+
-N),
total
(TN),
phosphorus
(P),
chemical
oxygen
demand
(COD)
removal
were
achieved
using
10
mg/L
,
reaching
values
100,
78.85,
95.8%,
respectively,
whereas
at
concentrations
15
30
suppressed
NH
-N,
TN,
COD.
terms
absolute
abundance,
expression
bacterial
amoA
narG
nirK
napA
maximal
presence
(9.18
×
5
8.58
8
1.09
1.07
9
copies/g
dry
weight,
respectively).
Irrespective
concentrations,
P
efficiency
remained
almost
100%.
Candidatus
_Competibacter
(10.26–23.32%)
identified
as
most
abundant
genus
within
system.
Determinism
(50%)
stochasticity
contributed
equally
to
community
assembly.
Co-occurrence
network
analysis
revealed
60.94%
OTUs
exhibited
positive
interactions,
39.06%
negative
interactions.
Within
OTU-based
co-occurrence
network,
fourteen
key
microbes.
stability
found
be
predominantly
shaped
by
cooperation,
complemented
competition
for
resources
or
niche
incompatibility.
study
suggested
during
wastewater
treatment
plants
methods,
concentration
supplemental
should
maintained
mg/L,
which
would
not
only
contribute
elimination,
but
also
enhance
COD
removal.
Land,
Год журнала:
2023,
Номер
12(4), С. 755 - 755
Опубликована: Март 27, 2023
Soil
biodiversity
drives
soil-based
ecosystem
services
and
is
an
important
indicator
of
soil
health.
To
understand
the
responses
biological
indicators
to
different
farmland
use
contexts,
72
fields
in
three
agricultural
regions
China
were
used
as
research
objects.
The
distribution
characteristics
factors
influencing
six
(carbon
nitrogen
contents
microbial
biomass
(MBC,
MBN,
respectively),
respiration
(SR),
catalase
activity
(CAT),
acid
phosphomonoesterase
(APA),
earthworms)
investigated
using
field
monitoring
indoor
analysis.
MBC,
SR,
CAT,
APA
showed
significant
differences
among
(p
<
0.05).
Correlation
redundancy
analyses
indicated
that
affecting
cation
exchange
capacity,
total
N,
organic
matter,
hydrolytic
bulk
density,
whereas
earthworms
phosphorus,
available
potassium.
None
these
had
a
effect
on
CAT.
Climatic
conditions,
types,
practices
all
have
complex
impacts
biodiversity.
results
attention
should
be
paid
improving
physical
conditions
increasing
fertility
levels
when
establishing
sustainable
farm
management
patterns.
