Water Quality Assessment of River Basins: New Insights and Practical Solutions
Water,
Год журнала:
2025,
Номер
17(8), С. 1207 - 1207
Опубликована: Апрель 17, 2025
Human
activities
and
environmental
changes
have
severely
compromised
water
quality
in
river
basins,
posing
challenges
to
ecosystems,
public
health,
sustainable
development
[...]
Язык: Английский
Chemical characteristics and controlling factors of groundwater in an intensive surface water-groundwater conversion zone: a case study of the Zhengzhou section of the lower Yellow River
Frontiers in Environmental Science,
Год журнала:
2025,
Номер
13
Опубликована: Май 12, 2025
Introduction
The
Zhengzhou
section
of
the
lower
Yellow
River
is
an
ecologically
vulnerable
region,
where
groundwater
chemistry
has
experienced
significant
variations
due
to
combined
effects
natural
factors
and
human
activities.
Methods
In
this
study,
we
employed
methods
such
as
Piper
trilinear
diagram,
Gibbs
plot,
ion
ratio
coefficient
method,
multivariate
statistical
techniques
explore
major
controlling
influencing
chemical
evolution.
Results
results
indicate
that
46%
shallow
in
intensive
conversion
zone
between
surface
water
HCO
3
—Na·Ca·Mg
type.
Influenced
by
lateral
infiltration
from
River,
on
both
sides
river
evolves
into
Cl·SO
4
·HCO
Cl·HCO
types.
Groundwater
near
riverbanks
ponds,
directly
replenished
or
leakage,
more
significantly
impacted
activities
compared
other
regions.
Factor
analysis
indicates
evolution
regional
primarily
controlled
mineral
dissolution,
activities,
recharge.
More
pronounced
water-rock
interactions
unconfined
aquifers,
leads
increase
concentrations
conventional
components
like
TDS
Mg
2+
.
Discussion
Due
long-term
unidirectional
transformation
groundwater,
SO
2-
Na
+
are
strongly
influenced
water.
NO
−
mainly
affected
including
domestic
agricultural
Fe
Mn
high
background
values
aquifer
sediments
and,
a
lesser
extent,
enhancement
aquifer’s
reducing
conditions,
leading
higher
groundwater.
findings
study
provide
theoretical
data-based
support
for
scientific
formulation
protection
rational
development
measures.
Язык: Английский
Hydrochemical variation characteristics and driving factors of surface water in arid Areas—a case study of Beichuan River in Northwest China
Frontiers in Environmental Science,
Год журнала:
2024,
Номер
12
Опубликована: Окт. 16, 2024
Examining
the
chemical
properties
of
river
water
and
controlling
factors
is
crucial
for
devising
efficacious
strategies
in
resources
management
ecological
conservation.
This
study
investigates
hydrochemical
characteristics
driving
Beichuan
River
arid
region
Northwest
China.
Surface
samples
were
collected
during
wet
dry
seasons,
analyzed
using
diagrams,
mathematical
statistics,
principal
component
analysis
(PCA).
The
results
show
that
pH
value
generally
weakly
alkaline,
main
types
are
HCO
3
-Ca,
average
TDS
224
mg/L
236
respectively,
which
higher
than
world
level
(115
mg/L).
seasonal
variation
components
mainly
controlled
by
rainfall,
showing
concentrations
Na
+
,
Cl
−
NO
season
those
season,
while
other
an
opposite
trend,
spatial
human
activities,
a
gradual
increasing
trend
from
upstream
to
downstream,
especially
Mg
2+
.
Rock
weathering
key
natural
factor
Hydrochemical
Composition
River.
dissolution
silicate,
Ca
carbonate
rocks
SO
4
2-
evaporite.
It
noted
domestic
sewage
agricultural
runoff,
contribute
significantly
body.
PCA
identified
rock
runoff
as
major
wet-season
factors,
predominantly
affects
season.
can
provide
scientific
basis
rational
development
environment
protection
areas.
Язык: Английский
Development and application of a comprehensive evaluation index system for groundwater quality evolution patterns
Environmental Research,
Год журнала:
2024,
Номер
262, С. 119896 - 119896
Опубликована: Авг. 31, 2024
Язык: Английский
Cascade reservoir regulations on nitrogen source and transformation in the Tibetan Plateau river: Constraints from high frequency data of Lancang river
Journal of Hydrology,
Год журнала:
2024,
Номер
unknown, С. 132563 - 132563
Опубликована: Дек. 1, 2024
Язык: Английский
Spatiotemporal Variation Characteristics and Source Identification of Nitrogen in the Baiyangdian Lake Water, China
Water,
Год журнала:
2024,
Номер
16(20), С. 2969 - 2969
Опубликована: Окт. 18, 2024
To
study
the
characteristics
and
sources
of
nitrogen
in
Baiyangdian
Lake,
this
research
conducted
water
quality
monitoring
during
three
hydrological
periods
(normal
period,
flood
dry
period),
165
pieces
routine
data
were
collected
from
national
control
sections
for
Lake
its
inflow
rivers.
By
integrating
chemical
analysis
with
multivariate
statistical
techniques,
comprehensively
investigated
spatiotemporal
variation
patterns
identified
pollution.
The
results
showed
that
concentration
total
(TN)
was
highest
reaching
an
average
0.924
mg/L,
31.3%
sites
exceeded
Grade
III
surface
standard,
reflecting
a
potential
risk
Based
on
ion
ratio
method
principal
component
(PCA),
main
pollution
as
manure
domestic
sewage,
agricultural
fertilizers
also
having
certain
impact
In
addition,
compared
several
important
lakes
China.
concentrations
TN
ammonium
(NH4+-N)
are
lower
than
those
areas
similar
human
activity
intensity,
indicating
is
relatively
good.
This
can
provide
scientific
basis
management
prevention
Lake.
Язык: Английский