Authorea (Authorea),
Год журнала:
2023,
Номер
unknown
Опубликована: Авг. 12, 2023
Rivers
are
important
contributors
to
global
greenhouse
gas
(GHG)
exchange
with
the
atmosphere.
However,
much
less
is
known
about
biogeochemical
dynamics
in
rivers
when
they
dry,
particularly
isolated
pools
created
by
drying.
Our
objective
was
examine
effects
of
water
temperature
and
allochthonous
organic
matter
(OM)
quantity
on
carbon
dioxide
(CO2)
methane
(CH4)
fluxes
pools.
We
used
an
automated
analyzer
measure
CO2
CH4
from
36
mesocosms
filled
sediments
a
non-perennial
river,
(20,
25,
30
°C)
Alnus
glutinosa
leaf
litter
(2g,
5g,
10
g)
manipulations
triplicate.
found
positive
individual
OM
fluxes,
synergistic
effect
during
late
stages
incubation.
Given
increase
inputs
associated
climate
change,
our
results
indicate
CO2,
disproportionate
atmosphere,
potentially
contributing
towards
feedback
loop.
AgriEngineering,
Год журнала:
2023,
Номер
5(1), С. 581 - 610
Опубликована: Март 8, 2023
Climate
change
has
drawn
the
attention
not
only
of
scientists
but
politicians
and
societies
worldwide.
The
aim
this
paper
is
to
present
a
method
for
selecting
research
studies
on
climate
change,
waste
management
role
microbes
in
recycling
organic
matter
soil
that
analyze
agriculture
as
main
connection
between
agricultural
losses
change.
VOSviewer
version
1.6.18
free
software
tool
was
used
study
order
achieve
bibliometric
mapping
approach
effects
terms
recycled
microbe
interaction.
Scopus
database
(accessed
29
September
2022)
indexed
total
1,245,809
bibliographic
items
classified
into
paradigms.
presented
documents
were
downloaded
from
graph-based
maps
distance-based
reflect
strength
relation
items.
includes
changes
microorganisms
affected
by
natural
variations
local
weather,
which
have
beneficial
or
negative
matter.
From
examination
selected
papers,
it
concluded
changing
precipitation
patterns
are
having
an
impact
microorganisms,
particularly
bacterial
groups,
thus
ecosystem
function.
Land,
Год журнала:
2023,
Номер
12(2), С. 399 - 399
Опубликована: Фев. 1, 2023
Land
use
change
could
affect
the
carbon
sink
of
terrestrial
ecosystems,
implying
that
future
storage
be
estimated
by
simulating
land
patterns,
which
is
great
significance
for
ecological
environment.
Therefore,
patterns
and
under
combination
scenarios
different
Shared
Socioeconomic
Pathway
(SSP)
Representative
Concentration
(RCP)
Yangtze
River
Delta
were
simulated
introducing
weight
matrices
into
Markov
model
combining
PLUS
InVEST
models.
The
results
revealed
woodland
expands
greatly
during
2020–2060
SSP1-RCP2.6
scenario,
2060
at
a
high
level
with
an
value
5069.31
×
106
t
average
annual
increase
19.13
t,
indicating
scenario
contributes
to
improvement
storage.
However,
area
built-up
increasing
SSP5-RCP8.5
3836.55
decrease
11.69
negatively
affects
sink.
Besides,
SSP2-RCP4.5
causes
almost
no
effect
on
above
can
help
policymakers
manage
choose
best
development
scenario.
Freshwater Biology,
Год журнала:
2023,
Номер
68(12), С. 2027 - 2041
Опубликована: Сен. 19, 2023
Abstract
River
fragmentation
by
drying
and
damming
is
occurring
more
frequently
in
the
Anthropocene
era,
yet
there
limited
knowledge
of
how
this
influences
greenhouse
gas
(GHG)
fluxes
river
networks.
networks
have
potential
to
be
important
sources
GHGs
atmosphere
through
both
similar
dissimilar
mechanisms
associated
with
temporary
(drying)
permanent
(damming)
fragmentation.
We
conducted
a
review
literature
found
49,
43
six
studies
about
(CO
2
,
CH
4
N
O)
rivers
impacted
damming,
their
interaction,
respectively.
research
lacking
non‐arid
climates
small
water‐retention
structures
for
regarding
The
major
factors
directly
influencing
GHG
were
sediment
moisture,
temperature,
organic
matter
content
texture.
In
most
influential
water
dissolved
oxygen,
phytoplankton
Chlorophyll‐
.
Based
on
our
meta‐ecosystem
theory,
we
propose
that
spatial
distribution
strongly
at
river‐network
scale.
actionable
future
directions
identified
here
will
help
improve
understanding
effects
fluxes,
inform
management
climate
change
mitigation
strategies.
Processes,
Год журнала:
2025,
Номер
13(4), С. 999 - 999
Опубликована: Март 27, 2025
Carbon
emissions
accounting
of
wastewater
treatment
systems
is
essential
for
understanding
their
energy
efficiency
and
greenhouse
gas
emissions.
To
overcome
the
inefficiencies
high
uncertainty
traditional
carbon
emission
methods
in
treatment,
prediction
software
biological
was
developed.
This
system
based
on
biochemical
reactions
that
occur
during
processes
classification
sources
within
system.
By
utilizing
stoichiometric
relationships,
a
platform
created
using
programming
languages,
such
as
Python.
The
used
to
calculate
two
typical
urban
plants
Xi’an.
results
indicated
oxidation
ditches
conventional
demonstrated
superior
performance,
with
lower
consumption
total
calculations
also
revealed
septic
tanks,
which
are
critical
components
building
drainage
systems,
frequently
underestimated
overlooked
significant
sources.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 7, 2024
Abstract
Microorganisms
in
river
sediments
are
the
primarily
responsible
organisms
for
turnover
of
dissolved
organic
carbon
(DOC)
these
systems
and
therefore
key
players
ecosystem
functioning.
Rivers
increasingly
threatened
by
multiple
stressors
such
as
salinization
temperature
rise,
but
little
is
known
about
how
microbial
DOC-degradation
responds
to
whether
this
function
recovers
after
stressor
release.
Here,
we
investigated
direct
indirect
effects
salinity
increase
decrease
on
communities
their
ability
degrade
DOC
using
outdoor
experimental
mesocosm
system
ExStream
.
Composition
sediment
was
determined
at
end
acclimatization,
stressor,
recovery
phase
16S
rRNA
gene
sequencing.
At
same
time
points,
degradation
rates
were
quantified
additional
microcosm
incubations
based
isotopic
changes
CO2
with
help
reverse
stable
isotope
labelling.
Our
results
showed
that
raising
154.1
mg
Cl
-
L
-1
3.5
°C
did
not
affect
during
significantly
increased
released.
Likewise,
community
composition
stayed
constant
acclimation
phase,
became
more
diverse
phase.
The
indicate
functioning
resistant
towards
both
stressors,
responded
release
due
riverine
food
web.
Graphical
abstract
Optics Express,
Год журнала:
2024,
Номер
32(21), С. 37355 - 37355
Опубликована: Сен. 11, 2024
Laser
heterodyne
detection
boasts
exceptional
advantages
such
as
high
spectral
resolution
and
signal-to-noise
ratio
(SNR).
It
excels
at
capturing
line
broadening
information
of
upper
atmospheric
molecules,
which
presents
substantial
research
value
in
the
realms
greenhouse
gas
profile
measurement
assessment
laser
propagation
effects
atmosphere.
This
paper
delves
into
investigation
processing
method
for
signals,
adopting
a
non-modulated
signal
to
construct
near-infrared
radiometer.
innovative
design
significantly
enhanced
response
speed
SNR.
The
radiometer
achieved
0.006
cm
-1
an
SNR
300.
facilitated
acquisition
vertical
distribution
column
concentration
CH
4
by
measuring
absorption
spectrum.
Comparative
tests
revealed
compelling
device.
modulated
device
collected
data
6
times
minutes,
yielding
58.
In
contrast,
demonstrated
superior
efficiency
collecting
6000
2
resulting
remarkable
103.
process
inversion,
influence
solar
spectrum
was
coupled
improve
accuracy
inversion
results.
results
from
were
compared
with
those
Fourier
transform
spectrometer
(EM27/SUN),
average
concentrations
1.946
ppmv
1.930
ppmv,
exhibited
overall
deviation
approximately
0.8%.
provides
new
reference
rapid,
accurate
measurements
concentration.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 4, 2024
Abstract
Soil
bacterial
communities
are
a
crucial
biological
indicator
of
soil
health
and
crop
performance;
however,
their
response
to
climate
change
remains
poorly
understood.
In
Maine,
wild
blueberry
farms
experiencing
unprecedented
temperature
changes,
which
may
exacerbate
microbial
responses
potentially
harm
the
crop.
To
elucidate
warming
during
growing
season,
we
employed
passive
active
open-top
chambers
simulate
scenarios
in
fields.
Warming
treatments
elevated
atmospheric
temperatures
by
1.2
3.3
°C
(passive
warming),
respectively,
but
did
not
affect
temperatures.
Nevertheless,
soils
treatment
exhibited
significantly
lower
water
content
than
ambient
conditions.
Overall,
diversity
richness
(June,
July,
August
data
combined)
under
active)
controls
demonstrate
significant
differences
after
two
years
experimental
warming.
However,
higher
evenness
were
observed
early
season
(June).
Our
study
also
reveals
pronounced
seasonal
shifts
bacteria
soil,
suggesting
that
variation
community
structure
be
more
influenced
changes
plant
activity
treatments.
The
increased
June
attributed
advanced
phenology,
indicating
potential
future
shift
dynamics
global
