SSRN Electronic Journal,
Journal Year:
2022,
Volume and Issue:
unknown
Published: Jan. 1, 2022
Soil
erosion
and
sediment
yield
are
among
the
most
challenging
topics
in
environmental
science
community.
Locating
sources
is
a
crucial
factor
watershed
management,
through
which
production
can
be
controlled
at
lower
cost
better
performance.
The
fingerprinting
method
an
accurate
approach
to
determine
source
of
watershed.
This
study
aimed
investigate
use
various
physical,
chemical,
biological
attributes
soil
watersheds
upstream
Anzali
Wetland.
A
series
were
identified
studied
watershed,
including
undisturbed
degraded
rangelands,
forests,
rice
fields,
tea
gardens,
gullies,
river
banks.
In
this
study,
93
samples
collected,
14
from
outlet
79
sources.
total
35
measured.
contribution
each
was
determined
using
statistical
technique
stepwise
diagnostic
analysis.
Some
selected
as
tracers,
enzyme
phosphatase,
organic
carbon,
very
fine
coarse
sand,
magnesium,
mercury,
cadmium.
results
revealed
two
primary
i.e.,
riverbanks
(69.17%)
gullies
(12.14%).
Based
on
outcome
inflow
into
wetland
significantly
reduced
by
controlling
bank
gully
appropriate
measures.
Sustainability,
Journal Year:
2025,
Volume and Issue:
17(9), P. 4130 - 4130
Published: May 2, 2025
Diffuse
agricultural
pollution
is
a
leading
contributor
to
surface
water
degradation,
particularly
in
regions
undergoing
rapid
land
use
change
and
intensification.
In
many
developing
countries,
conventional
assessment
approaches
fall
short
of
capturing
the
spatial
complexity
cumulative
nature
multiple
environmental
drivers
that
influence
vulnerability.
This
study
addresses
this
gap
by
introducing
Integral
Index
Vulnerability
Contamination
(IIVDC),
spatially
explicit,
multi-criteria
framework
combines
Analytical
Hierarchy
Process
(AHP)
with
Geographic
Information
Systems
(GIS).
The
IIVDC
integrates
six
key
indicators—slope,
soil
erodibility,
use,
runoff
potential,
hydrological
connectivity,
observed
quality—weighted
through
expert
elicitation
mapped
at
high
resolution.
methodology
was
applied
Guachal
River
watershed
Valle
del
Cauca,
Colombia,
where
pressures
are
pronounced.
Results
indicate
33.0%
exhibits
vulnerability
4.3%
very
vulnerability,
critical
zones
aligned
steep
slopes,
limited
vegetation
cover,
strong
connectivity
cultivated
areas.
By
accounting
for
both
biophysical
attributes
pollutant
transport
pathways,
offers
replicable
tool
prioritizing
management
interventions.
Beyond
its
technical
application,
contributes
sustainability
enabling
evidence-based
decision-making
resource
protection
planning.
It
supports
integrated,
targeted
actions
can
reduce
long-term
contamination
risks,
guide
sustainable
practices,
improve
institutional
capacity
governance.
approach
suited
contexts
data
but
planning
essential.
Future
refinement
should
consider
dynamic
quality
monitoring
validation
across
contrasting
hydro-climatic
enhance
transferability.
IntechOpen eBooks,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 31, 2024
Phosphorus,
a
crucial
element
for
plant
growth,
is
relatively
scarce
in
the
Earth’s
crust.
Its
availability
surface
soils
ranges
from
100
to
50
mg/kg.
Plants
can
only
absorb
phosphorus
form
of
orthophosphates,
with
H2PO4-
being
most
absorbable
at
low
pH
levels.
The
average
concentration
soil
solution
about
0.05
mg/L,
but
plant-satisfying
levels
range
0.003
0.3
underscoring
need
judicious
fertilization.
Storage
and
stabilization
reactions
soil,
mainly
facilitated
by
iron
aluminum
oxides,
play
key
role.
Compounds
use
hydroxyl
exchange
mechanisms
adsorption.
Under
alkaline
conditions,
minerals
like
calcium
carbonate
H2PO4-/
HPO42−,
leading
precipitation.
To
ensure
health,
fertilizers,
especially
orthophosphates
triple
superphosphate,
are
commonly
used.
These
fertilizers
offer
essential
growth
development,
supporting
vital
processes
respiration
photosynthesis.
Excess
aquatic
ecosystems,
known
as
eutrophication,
poses
environmental
risks,
often
originating
concentrated
agricultural
livestock
operations.
Proper
management
inputs
balancing
support
preservation.
Understanding
dynamics
water,
sediments
sustainable
agriculture
conservation
efforts.
Adsorption
isotherms
provide
insights
into
absorption
sediments,
impacting
water
quality
subsurface
systems.
AQUA - Water Infrastructure Ecosystems and Society,
Journal Year:
2023,
Volume and Issue:
72(11), P. 2017 - 2034
Published: Oct. 27, 2023
Abstract
Water
environments
of
urban
constructed
water
quality
treatment
(WQT)
wetland
waterscapes
are
strongly
related
to
quality,
whereas
scenic
beauty
values
help
achieve
better
aquatic
environments.
However,
correlations
between
several
indicators
(WQIs)
and
indexes
(SBIs)
have
not
been
thoroughly
revealed
in
the
existing
studies.
In
this
research,
an
analytic
hierarchy
process
(AHP)-based
on
estimation
(SBE)
per
site
two
WQT
wetlands
has
developed.
The
weights
were
determined
by
AHP
voting,
which
includes
three
main
criteria,
i.e.,
conditions
vegetation,
physical
geographical
conditions,
human
conditions.
SBIs
voted
calculated
from
professional
group
unprofessional
group.
WQIs
typical
pollutants
(i.e.,
dissolved
oxygen
(DO),
CODCr,
NH3-N,
pH,
total
phosphorus)
sampled
situ
simultaneously.
Inter-relationships
among
indicated
correlative
analysis
a
regression
model,
highlights
that
DO
increase,
CODCr
removal,
NH3-N
removal
can
explain
68.8%
changes
SBI.
Accordingly,
applications
for
eco-engineered
landscaping
(EEL)
suggested
be
conducted
quantitative
estimations
aspects,
following
strategies
EEL,
improving
techniques,
applying
attention
restoration
theory.
Water Science & Technology Water Supply,
Journal Year:
2024,
Volume and Issue:
24(5), P. 1462 - 1476
Published: April 26, 2024
ABSTRACT
This
study
investigates
the
feasibility
of
utilizing
drainage
water
for
reclamation
saline
and
sodic
soils
in
Dosalagh
plain
Khuzestan
province,
Iran.
With
significant
generated
region's
irrigation
networks,
repurposing
it
soil
emerges
is
a
low-risk
strategy.
Leaching,
practical
technique
desalination,
was
examined
using
double
ring
method
at
depths
up
to
150
cm.
Four
qualities
(electrical
conductivities
2.12,
7,
25
40
dS
m−1)
(0,
25,
50
75
cm)
were
tested,
with
intermittent
leaching
over
three
cycles.
Results
indicate
substantial
reduction
electrical
conductivity
(117.7
29
sodium
content
(1415.9
39.83
mEq
L−1)
0-25
cm
depth
incorporation.
The
highlights
beneficial
impact
on
quality,
emphasizing
decreased
content,
adsorption
ratio,
conductivity.
Overall,
reusing
proves
advantageous
high
salinity
levels,
showcasing
its
potential
sustainable
management
regions.
research
underscores
importance
effective
agricultural
sustainability
arid
regions
like
province.
Sustainable Water Resources Management,
Journal Year:
2024,
Volume and Issue:
10(4)
Published: July 31, 2024
Abstract
Phosphorus
in
surface
waters
accelerate
algal
growth
and
eutrophication,
considerably
influencing
water
quality.
Spatiotemporal
changes
phosphorus
concentration
are
crucial
for
environmental
issues.
We
aimed
to
study
the
temporal
spatial
quality
a
river
drainage
system
considering
different
land
uses.
To
this
aim,
15
samples
were
collected
from
origin
of
estuary,
Bostankar
River
watershed
(N-Iran),
during
spring
winter.
Further
agricultural
rice
fields,
tea,
flower,
orange
as
well
kiwi
gardens,
forests
EC,
pH,
TDS,
three
forms
(total,
particulate,
soluble)
measured
samples.
The
results
showed
that
time-dependent;
average
total
was
0.4
mg
l-1
lower
than
highest
(1.29
l-1)
occurred
winter
gardens.
Temporal
reduced
upstream
(jungles
grasslands)
towards
downstream
(different
uses),
amount
increased
0.25
0.5
l
−
1
.
TDS
60
220
Finally,
human
activities
main
factor
reduction
due
activities.
Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Jan. 12, 2023
Abstract
Phosphorus
(P)
is
transported
into
the
water
resources
mainly
due
to
soil
erosion.
Accumulation
of
P
in
bodies
leads
subsequent
eutrophication
phenomenon.
Using
structural
equation
modeling,
this
study
investigated
relative
contribution
different
P-producing
sources
Pasikhan
river
watershed,
south
Caspian
Sea,
Northern
Iran.
For
purpose,
79
surface
samples
and
14
suspended
sediments
were
taken
from
potential
river.
These
included
undisturbed
degraded
rangelands,
forests,
rice
fields,
tea
gardens,
gullies.
transfer
associated
with
movement
clay
particles.
Therefore,
was
used
as
an
intermediary
parameter
make
modeling
more
reliable.
The
implemented
equations
PLS
software
for
purposes.
overall
model
fitting
index
(goodness
fit,GOF=0.591)
showed
model's
strong
forecasting
capability.
results
T-values
test
also
that
rangelands
(T-values=1.67)
forests
(T-values=1.31)
have
no
significant
effect
on
river's
content.
Degraded
gullies,
gardens
significantly
contribute
sediments.
In
particular,
highest
related
(intensity
effect=0.63)
gullies
effect=0.47).
Finally,
gullies'
28.26%
production
sediments,
while
other
had
a
relatively
equal
(degraded
rangelands=27.5%;
gardens=23.9%;
fields=20.3%).
Overall,
confirmed
robust
efficient
approach
identifying
sources.
Soil
erosion
and
sediment
yield
are
among
the
most
challenging
topics
in
environmental
science
community.
Locating
sources
is
a
crucial
factor
watershed
management,
through
which
production
can
be
controlled
at
lower
cost
better
performance.
This
study
aimed
to
investigate
use
of
various
physical,
chemical,
biological
attributes
soil
determine
producing
watersheds
upstream
Anzali
Wetland.
A
series
were
identified
studied
watershed,
including
undisturbed
degraded
rangelands,
forests,
rice
fields,
tea
gardens,
gullies,
river
banks.
In
this
study,
93
samples
collected,
14
from
outlet
79
sources.
total
35
measured.
The
contribution
each
source
was
determined
using
statistical
technique
stepwise
diagnostic
analysis.
results
showed
that
combination
properties
phosphatase
enzyme,
organic
carbon,
very
fine
coarse
sand,
magnesium,
mercury,
cadmium
could
properly
distinguish
indicated
pastures
forests
did
not
significantly
contribute
wetland,
due
sufficient
vegetation
subsequent
decrease
those
areas.
fingerprinting
revealed
two
primary
i.e.,
riverbanks
(69.17%)
gullies
(12.14%).
Based
on
outcome
inflow
into
wetland
reduced
by
controlling
bank
gully
appropriate
measures.
