Water Environment Research,
Год журнала:
2024,
Номер
96(12)
Опубликована: Дек. 1, 2024
Groundwater
is
a
critical
resource
for
economic
growth
and
livelihoods
in
the
dense
agricultural
plains
of
plateaus.
However,
contaminations
from
various
sources
pose
significant
threats
to
groundwater
quality.
Understanding
contamination
mechanisms
hydrochemical
control
essential
sustainable
development
agriculturally
intensive
plains.
This
research
utilizes
23
datasets
chemical
measurements
apply
hierarchical
clustering
analysis,
positive
matrix
factorization,
analysis
techniques.
Through
these
methods,
study
identifies
deciphers
within
representative
plain
region
Yungui
Plateau.
The
finds
indicate
that
primarily
derives
rainfall
occurred
surrounding
mountains.
During
long
underground
flow
process,
undergoes
water-rock
interactions
ion
exchanges
with
lithological
strata,
resulting
formation
distinct
types.
As
it
traverses
regions
influenced
by
human
activities,
encounters
varying
levels
types
contamination.
Consequently,
there
notable
variation
quality
across
different
areas
plain.
dominated
faces
HCO
Water Science & Technology Water Supply,
Год журнала:
2024,
Номер
24(5), С. 1802 - 1824
Опубликована: Май 1, 2024
ABSTRACT
Groundwater
is
a
crucial
water
resource
for
various
usages
worldwide.
The
Quetta
Valley
of
Pakistan
was
investigated
regarding
its
groundwater
quality
sustainability
based
on
integrated
approaches
hydrochemistry,
geographic
information
system,
and
multivariate
statistics.
A
total
29
samples
were
collected
from
monitoring
wells
to
get
insights
into
the
hydrochemical
suitability
sustainable
irrigation
drinking
utilization.
results
indicate
mainly
featured
by
facies
HCO3·Cl-Ca.
composition
dominantly
governed
dissolution
carbonates
silicate
minerals
in
combination
with
positive
cation
exchange
valley.
Principal
component
analysis
reveals
significant
influence
geogenic
factors
chemistry,
further
supported
PHREEQC
simulation
that
detects
supersaturation
calcite,
dolomite,
sulphate
aquifer.
index
divides
study
area
three
zones,
which
signify
low
restriction
no
restriction,
except
severe
southwestern
part
generally
suitable
across
entropy-weighted
classifies
as
excellent
good
drinking.
This
can
provide
authorities
similar
regions
Rivers
are
an
important
source
of
water
in
humid
regions,
but
their
availability
is
greatly
limited
by
chemistry.
In
order
to
accurately
identify
the
changes
river
chemical
composition,
compositional
analysis
method
(CoDA)
proposed
from
perspective
data
theory,
which
considers
geochemical
riverine
system
as
a
whole
and
detects
entire
watershed.
The
basic
carried
out
traditional
methods,
results
show
that
hydrochemical
characteristics
different
sections
basin
have
significant
features.
chemistry
Dongxi
River
HCO3−
Ca
type.
Xixi
shows
gradual
evolution
HCO3-Ca
type
high
SO42−
content
upper
reaches
Cl-Ca
lower
reaches.
hydrochemistry
watershed
mainly
affected
rock
weathering
leaching
(PC1)
agricultural
domestic
pollutant
discharge
(PC2),
with
contribution
rate
48.4%
19.7%,
respectively.
Rock
weathering,
mining,
pollution
main
factors
affecting
composition
regions.
spatial
single
sample
at
scales
monitored
Mahalanobis
distance
approach
iterative
manner
minimize
influence
anomaly
on
center.
reasons
for
change
along
attributed
mine
pollution,
tea
plantation
caused
pollution.
after
confluence
human
activities
seawater
urban
areas.
This
research
could
provide
new
perspectives
methods
detecting
influences
natural
regions
worldwide.
Water Environment Research,
Год журнала:
2024,
Номер
96(12)
Опубликована: Дек. 1, 2024
Groundwater
is
a
critical
resource
for
economic
growth
and
livelihoods
in
the
dense
agricultural
plains
of
plateaus.
However,
contaminations
from
various
sources
pose
significant
threats
to
groundwater
quality.
Understanding
contamination
mechanisms
hydrochemical
control
essential
sustainable
development
agriculturally
intensive
plains.
This
research
utilizes
23
datasets
chemical
measurements
apply
hierarchical
clustering
analysis,
positive
matrix
factorization,
analysis
techniques.
Through
these
methods,
study
identifies
deciphers
within
representative
plain
region
Yungui
Plateau.
The
finds
indicate
that
primarily
derives
rainfall
occurred
surrounding
mountains.
During
long
underground
flow
process,
undergoes
water-rock
interactions
ion
exchanges
with
lithological
strata,
resulting
formation
distinct
types.
As
it
traverses
regions
influenced
by
human
activities,
encounters
varying
levels
types
contamination.
Consequently,
there
notable
variation
quality
across
different
areas
plain.
dominated
faces
HCO
