Abstract.
Peatlands
pools
are
unvegetated,
inundated
depressions
that
cover
up
to
30
%
of
the
surface
many
temperate
and
boreal
peatlands
net
carbon
(C)
sources
within
C-accumulating
ecosystems.
The
emission
dioxide
(CO2)
methane
(CH4)
from
peatland
comes
degradation
organic
matter
(OM)
comprise
surrounding
matrix.
It
is,
however,
not
clear
how
decomposition
rates
in
pools,
which
define
their
function
distinguish
them
other
aquatic
ecosystems,
vary
spatially
what
mechanisms
drive
these
variations.
We
quantified
OM
fresh
litter
at
different
depths
six
distinct
morphological
characteristics
a
ombrotrophic
using
litterbags
Sphagnum
capillifoliumTypha
latifolia
over
27-month
period
measured
potential
CO2
CH4
production
pool
sediments
laboratory
incubations.
Rates
were
faster
for
T.
than
S.
and,
overall,
decreased
with
increasing
depth.
Pool
sediment
chemistry
was
variable
among
drove
sediments,
decreasing
humification
nitrogen-to-phosphorus
ratio.
Both
CO2
production
higher
1
m
deep
but
similar
shallow
<
>
1.5
pools.
Our
results
show
is
highly
related
chemistry,
depends
primarily
on
environmental
conditions
it
occurs,
differences
both
decomposability
as
O2
concentrations,
light,
temperature
depth
Biogeosciences,
Год журнала:
2024,
Номер
21(15), С. 3491 - 3507
Опубликована: Авг. 2, 2024
Abstract.
Peatland
pools
are
unvegetated,
inundated
depressions
that
cover
up
to
30
%
of
the
surface
many
temperate
and
boreal
peatlands
net
carbon
(C)
sources
within
C-accumulating
ecosystems.
The
emission
dioxide
(CO2)
methane
(CH4)
from
peatland
comes
degradation
organic
matter
(OM)
comprises
surrounding
matrix.
It
is,
however,
not
clear
how
decomposition
rates
in
pools,
which
define
their
function
distinguish
them
other
aquatic
ecosystems,
vary
spatially
what
mechanisms
drive
these
variations.
We
first
quantified
OM
fresh
litter
at
different
depths
six
distinct
morphological
characteristics
a
ombrotrophic
using
litterbags
Sphagnum
capillifolium
Typha
latifolia
over
27-month
period.
Rates
were
faster
for
T.
than
S.
and,
overall,
pool
decreased
with
increasing
depth.
then
measured
potential
CO2
CH4
production
sediments
same
by
performing
35
d
laboratory
incubations.
Pool
sediment
chemistry
was
variable
among
influenced
sediments,
decreasing
humification
nitrogen-to-phosphorus
ratio.
Both
higher
1
m
deep
but
similar
shallow
<
>
1.5
pools.
When
combining
both
experiments,
our
results
indicate
is
highly
mostly
related
environmental
conditions
it
occurs
as
general
depth
rather
chemistry.
Overall,
we
show
C
emissions
open-water
may
increase
time
warmer
drier
climate
conditions.
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management),
Год журнала:
2023,
Номер
unknown, С. 299 - 308
Опубликована: Дек. 29, 2023
Requirements
for
good
environmental
health
in
a
residential
area
are
characterized
by
the
availability
of
access
to
sanitation
facilities.
Muaro
Lasak,
Rimbo
Kaluang
Village,
Padang
City
is
coastal
area,
as
well
tourist
location
City.
The
aim
research
was
determine
condition
facilities,
healthy
behavior,
and
water
quality
Lasak.
Qualitative
quantitative
data
were
collected
obtain
complete
data.
assessment
indicators
consist
waste
disposal
latrines
public
facilities
that
support
tourism,
(pH,
dissolved
solids/TDS,
oxygen
levels/DO)
river
flows
into
Lasak..
results
show
there
available
every
resident's
house
so
defecation
no
longer
sea.
There
rubbish
but
they
not
functioning
optimally.
Regarding
sea
water,
such
as:
pH
still
meets
standard
(6.38),
content
(DO)
3.35
ppm
(moderately
polluted),
while
solids
(TDS)
at
892.75
ppm.
Hydrology,
Год журнала:
2024,
Номер
11(3), С. 40 - 40
Опубликована: Март 16, 2024
A
thermal
system
in
the
very
deep
Lake
Tazawa
(maximum
depth,
423
m)
was
investigated
by
estimating
heat
budget.
In
budget
estimate,
net
input
at
lake’s
surface
and
river
inflow
groundwater
were
considered.
Then,
loss
snowfall
onto
taken
into
account.
Meanwhile,
lake
water
temperature
monitored
0.2
m
to
bottom
mooring
loggers
for
more
than
two
years.
The
storage
change
of
from
calibrated
frequent
vertical
measurements
every
0.1
pitch
a
profiler
with
high
accuracy
(±0.01
°C).
(W/m2)
obtained
reasonably
accorded
that
estimate.
budget,
dominated
change,
but
significant
sporadically
occurred,
caused
relatively
large
discharge
reservoir
upper
region.
How
deeply
circulation
occurs
winter
judged
according
differences
between
temperatures
depth
profiles
dissolved
oxygen
over
winter.
It
is
strongly
suggested
whole
process
does
not
occur
winter,
if
it
does,
weak.
consistent
increase
probably
due
conservation
geothermal
frequency
incomplete
circulation.
Abstract.
Peatlands
pools
are
unvegetated,
inundated
depressions
that
cover
up
to
30
%
of
the
surface
many
temperate
and
boreal
peatlands
net
carbon
(C)
sources
within
C-accumulating
ecosystems.
The
emission
dioxide
(CO2)
methane
(CH4)
from
peatland
comes
degradation
organic
matter
(OM)
comprise
surrounding
matrix.
It
is,
however,
not
clear
how
decomposition
rates
in
pools,
which
define
their
function
distinguish
them
other
aquatic
ecosystems,
vary
spatially
what
mechanisms
drive
these
variations.
We
quantified
OM
fresh
litter
at
different
depths
six
distinct
morphological
characteristics
a
ombrotrophic
using
litterbags
Sphagnum
capillifoliumTypha
latifolia
over
27-month
period
measured
potential
CO2
CH4
production
pool
sediments
laboratory
incubations.
Rates
were
faster
for
T.
than
S.
and,
overall,
decreased
with
increasing
depth.
Pool
sediment
chemistry
was
variable
among
drove
sediments,
decreasing
humification
nitrogen-to-phosphorus
ratio.
Both
CO2
production
higher
1
m
deep
but
similar
shallow
<
>
1.5
pools.
Our
results
show
is
highly
related
chemistry,
depends
primarily
on
environmental
conditions
it
occurs,
differences
both
decomposability
as
O2
concentrations,
light,
temperature
depth
