The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
951, P. 175618 - 175618
Published: Aug. 17, 2024
Physico-chemical
characteristics
of
groundwater
are
often
impacted
by
agricultural
practices
such
as
land
use,
fertilizer
types,
and
pumping.
This
study
aimed
to
identify
contaminant
sources
redox
processes
controlling
the
hydrogeochemistry
in
riparian
zones
influenced
intensive
activities,
focusing
on
sulfur
species.
Groundwater
samples
were
collected
bimonthly
from
March
2014
2015
wells
two
South
Korea
with
different
systems.
The
water
isotopic
compositions
indicated
that
all
originated
same
meteoric
water.
affected
periodic
pumping
exhibited
wide
variations
Mn
Journal of Hydrology Regional Studies,
Journal Year:
2024,
Volume and Issue:
52, P. 101727 - 101727
Published: March 7, 2024
A
well-irrigated
area
along
the
Yellow
River
in
North
China
Plain.
High
nitrate
concentrations
groundwater
induced
by
soil
leaching
are
found
worldwide.
In
this
research,
we
examined
main
processes
and
mechanisms
of
with
16
years
long-term
observational
data
to
evaluate
potential
threat
pollution
a
area.
This
study
uncovered
significant
differences
primary
region
at
different
stages
response
continuous
table
decline.
first
stage,
tables
were
less
than
5
m,
was
mainly
driven
irrigation
or
precipitation
average
annual
percolation
116.8
mm.
second
overexploitation
led
decline
table,
inducing
internal
drainage
lower
root
zone.
third
further
almost
cut
off
hydrological
connection
zone
groundwater,
which
hampered
water
thus
from
during
next
precipitation.
However,
one
extreme
as
much
2021
washed
out
all
accumulated
The
findings
provide
reference
for
nitrogen
management
protection
similar
regions.
Soil Research,
Journal Year:
2024,
Volume and Issue:
62(2)
Published: Feb. 26, 2024
Context
Bacillus
subtilis
(BS)
is
a
widely
used
microbial
agent
that
could
improve
soil
fertility
and
microenvironment.
There
still
uncertainty
about
the
suitability
of
BS
for
cultivating
crops
with
high
demand
nitrogen
fertiliser.
Aims
To
evaluate
effects
on
community
diversity
nitrogen-cycling
genes
in
mulberry
rhizosphere
soil.
Methods
Pot
experiments
were
conducted.
Different
dosages
(CK,
0;
T1,
0.5
×
106
CFU
g−1
soil;
T2,
1
T3,
2
soil)
applied
to
irrigate
The
nutrient
content,
enzyme
activity,
bacterial
community,
determined.
Key
results
T1
had
highest
Chao1
Shannon
index,
while
T3
lowest.
BS-treated
samples
higher
relative
abundance
Actinobacteria
Chloroflexi
than
CK.
Specially,
Sphingomonas,
Reyranella,
Hyphomicrobium,
which
was
significantly
positively
correlated
content
organic
matter,
total
soluble
nitrogen,
ammonium
activity
sucrase.
involved
amino
acid
metabolism,
energy
metabolism
cofactors,
vitamin
functions
also
increased
samples.
treatment
AOA-amoA
nirK
genes,
but
decreased
nirS
nifH
genes.
Conclusions
An
appropriate
amount
fertility,
regulate
dominant
bacterium
communities,
affect
functional
cycling.
Implications
probably
good
choice
cultivation
fertiliser
utilisation
efficiency.
The Science of The Total Environment,
Journal Year:
2024,
Volume and Issue:
951, P. 175618 - 175618
Published: Aug. 17, 2024
Physico-chemical
characteristics
of
groundwater
are
often
impacted
by
agricultural
practices
such
as
land
use,
fertilizer
types,
and
pumping.
This
study
aimed
to
identify
contaminant
sources
redox
processes
controlling
the
hydrogeochemistry
in
riparian
zones
influenced
intensive
activities,
focusing
on
sulfur
species.
Groundwater
samples
were
collected
bimonthly
from
March
2014
2015
wells
two
South
Korea
with
different
systems.
The
water
isotopic
compositions
indicated
that
all
originated
same
meteoric
water.
affected
periodic
pumping
exhibited
wide
variations
Mn
