A Global hydrological index describes ecological conditions in rivers: A new approach to environmental flow calculation reflecting macroinvertebrate requirements
Ecological Indicators,
Journal Year:
2025,
Volume and Issue:
170, P. 113082 - 113082
Published: Jan. 1, 2025
Language: Английский
Assessing the Effects of Environmental Flows on Water Quality for Urban Supply
Water,
Journal Year:
2024,
Volume and Issue:
16(11), P. 1509 - 1509
Published: May 24, 2024
This
paper
analyses
the
effects
of
environmental
flows
on
water
quality
within
a
highly
regulated
basin,
focusing
Turia
River
basin
in
eastern
Iberian
Peninsula.
Through
management
and
models,
series
simulations
were
conducted,
introducing
variations
outflows
Loriguilla
reservoir
to
evaluate
different
flow
scenarios
quality,
particularly
at
location
intake
for
supply
Valencia.
Three
analyzed,
alongside
an
alternative
scenario,
considering
their
implications
reliability
demand.
The
findings
this
paper,
nitrate
(NO3−)
concentration
evolution,
highlight
influence
minimum
e-flow
regimes
basin.
These
results
suggest
that
while
modifying
current
regime
can
lead
some
improvements
concentrations
Valencia
point,
primary
cause
high
is
attributed
irrigation
return
pre-existing
contamination
aquifer.
analysis
offers
valuable
insights
into
complexities
basins,
emphasizing
need
multi-faceted
approach
address
diverse
factors
influencing
demand
reliability.
Language: Английский
Predicting impacts of agricultural land use on stream and river biota: method review, evaluation and guidance
Environmental Reviews,
Journal Year:
2024,
Volume and Issue:
32(4), P. 572 - 591
Published: May 30, 2024
Predicting
land-use
and
land-management
effects
on
stream
river
biota
is
an
important
aspect
of
land-water
management,
yet
there
are
no
collations
what
methods
available
to
carry
out
those
assessments
nor
guidance
which
use.
This
paper
summarises
a
range
with
examples
their
applications,
comments
strengths
weaknesses,
evaluates
them
against
set
criteria,
provides
method
selection.
Assessment
include
empirical
statistical
mechanistic
models,
Bayesian
networks,
likelihood–consequence
risk
assessments,
scoring
methods,
hybrid
some
can
be
informed
by
expert
elicitation.
An
evaluation
matrix
for
indicated
that
single
ideal,
selection
needs
carefully
consider
factors
such
as
the
physico-chemical
stressor
or
biotic
impact
interest,
intended
stakeholders,
scales
assessment.
One
emergent
principle
separation
relationships
between
land
use
stressors
from
biota,
alternative
could
used.
A
tiered
approach
recommended,
whereby
simple
low
resource
time
requirements
applied
first,
followed
more
sophisticated
selected
aspects
if
needed.
There
need
ready-made
at
screening
level,
well
development
new
address
remaining
gaps
multiple
stressors.
Language: Английский
An improved hydraulic method for calculating ecological flow considering the changes of rainfall and temperature within a year
LIU Shu-feng,
No information about this author
Zhihua Wang,
No information about this author
Shuai Guan
No information about this author
et al.
Ecological Indicators,
Journal Year:
2024,
Volume and Issue:
167, P. 112677 - 112677
Published: Oct. 1, 2024
Language: Английский
Evaluation of fish habitat suitability based on stream hydrodynamics and water quality using SWAT and HEC-RAS linked models
Jinseok Park,
No information about this author
Seongju Jang,
No information about this author
Hyeokjin Lee
No information about this author
et al.
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 30, 2024
Abstract
The
objective
of
this
study
was
to
evaluate
fish
habitat
suitability
by
simulating
hydrodynamic
and
water
quality
factors
using
integration
model
SWAT
HEC-RAS
models
considering
time-series
analysis.
2.9
km
reach
the
Bokha
stream
selected
for
evaluation
Zacco
platypus
,
a
dominant
species
reach.
Streamflow
at
inlet
were
simulated
with
subsequent
cross-sectional
velocity
depth
along
temperature
dissolved
oxygen
(DO)
estimated
HEC-RAS.
linked
calibrated
validated
10
years
period
from
2013
2022.
aquatic
assessed
weighted
usable
area
(WUA)
analysis
conducted
continuity
habitat.
Overall,
simulation
accuracy
evaluated
as
satisfactory
or
higher
in
all
influence
indicators.
High
appeared
be
most
influential
indicator
which
impact
particularly
pronounced
shallow
streamflow
areas
during
hot
summer
seasons.
identified
28%
threshold
WUA/WUA
max
equivalent
0.48
m³/s,
minimum
ecological
mitigate
rise.
proposed
method
linking
watershed-stream
could
serve
useful
tool
management.
Language: Английский
Analysis of environmental flow for multiple fish species living in the Hwang River, South Korea
Sangdon Byeon,
No information about this author
Seong‐Joon Kim,
No information about this author
Yoon-Seok Kim
No information about this author
et al.
Paddy and Water Environment,
Journal Year:
2024,
Volume and Issue:
22(4), P. 551 - 566
Published: June 20, 2024
Language: Английский
Evaluation of fish habitat suitability based on stream hydrodynamics and water quality using SWAT and HEC-RAS linked simulation
Jinseok Park,
No information about this author
Seongju Jang,
No information about this author
Hyeokjin Lee
No information about this author
et al.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Aug. 20, 2024
The
objective
of
this
study
was
to
evaluate
fish
habitat
suitability
by
simulating
hydrodynamic
and
water
quality
factors
using
SWAT
HEC-RAS
linked
simulation
considering
time-series
analysis.
A
2.9
km
reach
the
Bokha
stream
selected
for
evaluation
Zacco
platypus,
with
simulations
performed
approach.
Based
on
simulated
10-year
data,
aquatic
assessed
weighted
usable
area
(WUA),
minimum
ecological
streamflow
proposed
from
continuous
above
threshold
(CAT)
High
temperature
identified
as
most
influential
indicator,
its
impact
being
particularly
pronounced
in
shallow
areas
during
hot
summer
seasons.
analysis
a
28%
WUA/WUA
Language: Английский