ABSTRACT
Thirty-five
groundwater
samples
from
the
aquifer
were
collected
and
analyzed
for
major
cations
anions
to
understand
chemistry
hydrochemical
processes
in
Egbako
aquifer.
Laboratory
studies
identified
ions
while
results
using
different
graphical
methods
ionic
plots.
The
abundance
of
are
Ca2+>K+>Na+>Mg2+
HCO3->NO3->Cl->SO42-
respectively.
dominant
facies
calcium-bicarbonate
(Ca-HCO3),
sodium-bicarbonate
(Na-HCO3)
mixed
calcium-sodium
bicarbonate
(Ca-Na-HCO3)
water
types.
Interpretation
bivariate
scatter
plots
indicate
silicate
weathering,
simple
dissolution
ion
exchange
as
Saturation
indices
reveals
evaporites
(halite,
gypsum
anhydrite)
undersaturation,
supersaturation
most
with
respect
silicates
(quartz
kaolinite)
few
carbonate
(calcite,
aragonite,
dolomite).
Assessment
quality
that
they
chemically
suitable
human
consumption
except
agricultural
fields
southwestern
areas
where
high
nitrate
concentration
is
present.
Biological reviews/Biological reviews of the Cambridge Philosophical Society,
Journal Year:
2024,
Volume and Issue:
99(3), P. 753 - 777
Published: Jan. 4, 2024
ABSTRACT
Weed
communities
influence
the
dynamics
of
ecosystems,
particularly
in
disturbed
environments
where
anthropogenic
activities
often
result
higher
pollution.
Understanding
existing
between
native
weed
and
invasive
species
is
crucial
for
effective
management
normal
ecosystem
functioning.
Recognising
potential
resistance
to
invasion
can
help
identify
suitable
plants
restoration
operations.
This
review
aims
investigate
adaptations
exhibited
by
non‐native
weeds
that
may
affect
invasions
within
environments.
Factors
such
as
ecological
characteristics,
altered
soil
conditions,
potentially
confer
a
competitive
advantage
relative
or
are
analysed.
Moreover,
roles
biotic
interactions
competition,
mutualistic
relationships,
allelopathy
shaping
described.
Emphasis
given
consideration
key
factor
provides
insights
conservation
efforts
Additionally,
this
underscores
need
further
research
unravel
underlying
mechanisms
devise
targeted
strategies.
These
strategies
aim
promote
mitigate
negative
effects
By
delving
deeper
into
these
insights,
we
gain
an
understanding
ecosystems
develop
valuable
species,
restore
long‐term
sustainability.
Civil Engineering Journal,
Journal Year:
2023,
Volume and Issue:
9, P. 192 - 201
Published: Dec. 25, 2023
Lung
Ngoc
Hoang
Nature
Reserve
has
a
crucial
role
in
conserving
and
protecting
the
natural
ecosystem
biodiversity
Mekong
Delta,
Vietnam,
local
communities
also
receive
great
benefits
from
aquatic
resources
this
nature
reserve.
This
study
was
conducted
to
assess
water
quality
provide
important
information
for
monitoring
program
using
multivariate
statistical
methods.
Water
samples
were
collected
bimonthly
fifteen
locations
belonging
five
functional
zones
of
reserve
(i.e.,
buffer
zone,
main
canal,
administrative
service
ecological
restoration
strictly
protected
zone).
The
physiochemical
properties
measured,
including
temperature,
pH,
electrical
conductivity
(EC),
total
suspended
solids
(TSS),
dissolved
oxygen
(DO),
biochemical
demand
(BOD),
chemical
(COD),
nitrogen
(TN),
phosphorus
(TP),
sulfate
(SO42-),
iron
(Fe2+),
aluminum
(Al3+).
results
showed
that
levels
TSS,
COD,
Fe2+
exceeded
Vietnamese
standard
on
surface
quality,
DO
level
far
below
standard.
Besides,
concentrations
TN,
TP,
Al3+
area
risk
eutrophication
negative
effects
organisms.
Problems
observed
canal
more
than
other
zones.
Cluster
analysis
(CA)
suggested
reduction
number
frequencies
four
months
January,
April,
July,
September)
twelve
locations,
respectively.
allows
decrease
effort
cost
with
adequate
evaluate
quality.
Moreover,
principal
component
(PCA)
identified
components,
which
could
explain
80.98%
variance
initial
dataset.
Potential
pollution
sources
recognized
based
PCA,
sulfate-acid
soils,
livestock,
fertilizer,
domestic
activities.
findings
can
enhance
our
understanding
effectiveness
future
programs.
Doi:
10.28991/CEJ-SP2023-09-015
Full
Text:
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