Drought disasters, vulnerability, severity, preparedness and response to the water sector: A comprehensive model approach for water governance and policy in South Africa
Progress in Disaster Science,
Год журнала:
2025,
Номер
unknown, С. 100417 - 100417
Опубликована: Март 1, 2025
Язык: Английский
Estimating thresholds of natural vegetation for the protection of water quality in South African catchments
The Science of The Total Environment,
Год журнала:
2024,
Номер
945, С. 173924 - 173924
Опубликована: Июнь 15, 2024
Many
of
South
Africa's
current
water
quality
problems
have
been
attributed
to
diffuse
pollution
derived
from
poorly
regulated
land
use/land
cover
(LULC)
transformations.
To
mitigate
these
impacts,
the
preservation
an
adequate
amount
natural
vegetation
within
catchment
areas
is
important
management
strategy.
However,
it
not
clear
how
much
required
provide
levels
protection,
nor
at
which
scale(s)
this
strategy
would
be
most
effective.
investigate
possibility
estimating
minimum
thresholds
protect
resources,
regression
analysis
was
used
model
relationships
between
(measured
using
Nemerow's
Pollution
Index)
and
metrics
multiple
scales
across
a
sample
sub-catchments
located
along
western,
southern,
south-eastern
coast
Africa.
With
conspicuous
outliers
removed,
models
were
able
explain
up
82
%
variability
in
relationship
use
quality.
Moreover,
statistically
significant,
nonlinear,
inverse
found
proportions
levels.
This
strongest
when
measured
(1)
whole
(2)
200
m
riparian
buffer
zone.
The
further
indicated
that
approximately
80
90
necessary
maintain
ecologically
acceptable
Additional
nonlinear
estimated
breakpoint
suggested
if
fall
below
45
(across
catchment)
60
(within
zone)
dramatic
increase
can
expected.
are
recommended
as
guidelines
inform
integrated
resources
strategies
aimed
protecting
study
area.
Likewise,
methods
described
for
estimation
similar
other
regions.
Язык: Английский
Estimating Thresholds of Natural Vegetation for the Protection of Water Quality in South African Catchments
Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 29, 2024
Abstract
Many
of
South
Africa’s
current
water
quality
problems
have
been
attributed
to
diffuse
pollution
derived
from
poorly
regulated
land
use/land
cover
(LULC)
transformations.
To
mitigate
these
impacts,
the
preservation
an
adequate
amount
natural
vegetation
within
catchment
areas
is
important
management
strategy.
However,
it
not
clear
how
much
required
provide
levels
protection,
nor
at
which
scale(s)
this
strategy
would
be
most
effective.
investigate
possibility
estimating
minimum
thresholds
protect
resources,
regression
analysis
was
used
model
relationships
between
(measured
using
Nemerow’s
Pollution
Index)
and
metrics
multiple
scales
across
a
sample
sub-catchments
located
along
western,
southern,
south-eastern
coast
Africa.
With
conspicuous
outliers
removed,
models
were
able
explain
up
82%
variability
in
relationship
use
quality.
Moreover,
statistically
significant,
nonlinear,
inverse
found
proportions
levels.
This
strongest
when
measured
(1)
whole
(2)
200
m
riparian
buffer
zone.
The
further
indicated
that
approximately
80
90%
necessary
maintain
ecologically
acceptable
Additional
nonlinear
estimated
breakpoint
suggested
if
fall
below
45%
(across
catchment)
60%
(within
zone)
dramatic
increase
can
expected.
are
recommended
as
guidelines
inform
integrated
resources
strategies
aimed
protecting
study
area.
Likewise,
methods
described
for
estimation
similar
other
regions.
Язык: Английский
Water Management as a Social Field: A Method for Engineering Solutions
Water,
Год журнала:
2024,
Номер
16(19), С. 2842 - 2842
Опубликована: Окт. 7, 2024
This
paper
proposes
the
use
of
Pierre
Bourdieu’s
sociological
concepts
social
fields,
capital,
and
habitus
to
analyze
water
management
in
Colombia.
By
mapping
dynamics
management,
this
study
examines
interactions
power
relationships
among
agents,
including
government
agencies,
private
companies,
academic
institutions,
non-profits,
local
communities.
The
analysis
reveals
how
various
forms
such
as
economic,
cultural,
social,
symbolic,
influence
practices,
policies,
distribution
power.
Integrating
agent-based
modeling
with
hydrological
simulations
provides
a
more
nuanced
understanding
management.
interdisciplinary
approach
helps
develop
adaptive
equitable
strategies
by
capturing
complex
between
human
behavior
environmental
factors.
highlights
need
localize
field
capture
regional
customs
specific
dynamics.
localized
ensures
that
are
relevant,
context
sensitive,
sustainable.
advocates
for
wider
adoption
proposing
methodology
combines
engineering
principles
practical
problem
solving
design
an
complexities
Язык: Английский
Threats posed by land use to water quality in South Africa's strategic water source areas
World Water Policy,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 28, 2024
Abstract
Understanding
the
negative
impacts
of
land
use/land
cover
(LULC)
on
water
quality
is
key
to
developing
effective
integrated
catchment
management
strategies.
However,
in
line
with
Integrated
Water
Resources
Management
(IWRM)
philosophy,
this
necessitates
generation
and
application
useful
scientific
knowledge,
which
stakeholders
policymakers
can
use
inform
coordinated
decision‐making
processes.
To
facilitate
this,
a
recently
published
study
reported
methods
for
estimating
minimum
thresholds
natural
vegetation
necessary
maintenance
protection
South
African
catchments.
The
present
article
discusses
implications
these
findings,
focusing
vulnerability
Africa's
Strategic
Source
Areas
(SWSAs)
land‐use‐related
impacts.
It
emphasizes
that,
due
significant
transformations
that
have
already
occurred
areas,
consequent
likelihood
impairment,
there
need
restore
preserve
sufficient
areas
protect
strategic
resources
from
unacceptable
levels
contamination.
Язык: Английский