Runoff of Water and Its Quality under the Combined Impact of Agricultural Activities and Urban Development in a Small River Basin
Water,
Journal Year:
2023,
Volume and Issue:
15(13), P. 2443 - 2443
Published: July 2, 2023
The
basin
of
the
small
river
studied
here
(the
Vezelka
River,
Belgorod
Oblast
European
Russia)
is
located
within
an
urban
area
(22%
basin).
This
circumstance
determines
its
specificity
as
object
synergetic
anthropogenic
impact.
purpose
work
was
to
develop
and
test
approaches
integral
assessment
hydroecological
situation
both
in
watershed
riparian
zones
based
on
hydrological,
hydrochemical,
hydrobiological
data
estimates
soil
erosion,
water
quality,
pollution
bottom
sediments.
selection
River
for
study
due
presence
there
two
intakes
a
town
with
population
2439
people
per
sq.
km,
repeated
deepening
riverbed,
fact
that
single
regional
small-river
hydrological
station
(although
are
567
rivers
<
25
km
long
Oblast).
Analysis
1951–2021
showed
steady
decline
discharge
since
1991;
thus,
over
past
three
decades,
has
decreased
by
2.4
times.
reduction
length
network
region
38%
250
years
assignment
(at
10
gauging
stations)
3–4
quality
classes
(extremely
heavily
polluted)
indicated
exhaustion
possibilities
self-purification
water.
These
large
medium
were
clearly
confirmed
investigation
studied.
In
summer
low-water
periods,
maximum
allowable
concentrations
fishery
bodies
exceeded
2–10
times
terms
Cu,
Fe,
ammonium,
oil,
biochemical
oxygen
demand.
reconstruction
floodplain–channel
subsystem
river–valley
landscapes
substantiated
final
stage
concept
nature
management,
replacing
continuous
channel
without
proper
erosion
control
measures
organization
buffer
along
banks.
Language: Английский
Anthropogenic Fingerprints of Sedimentary Deposits in a Himalayan Wetland Ecosystem over the Last 8 Centuries
Wetlands Ecology and Management,
Journal Year:
2024,
Volume and Issue:
32(5), P. 741 - 757
Published: Feb. 9, 2024
Language: Английский
Characteristic of the dried-up zone formed as a result of the breach of the Kahovka dam
Biosystems Diversity,
Journal Year:
2024,
Volume and Issue:
32(2), P. 285 - 295
Published: June 15, 2024
The
explosion
at
the
Kahovka
dam
led
to
formation
of
new
dried-up
areas
bottom
Reservoir,
which
have
specific
relief
and
mechanical
composition
soil.
Vegetation
that
has
been
forming
in
those
for
over
one
year
now
is
already
undergoing
first
stages
succession
characterized
by
high
spatial
non-uniformity.
study
consisted
three
main
stages:
analysis
dynamics
outflow
from
reservoir
development
a
scheme
hydrographic
network
site
reservoir’s
bed,
soil
cover,
vegetative
cover.
We
analyzed
possibility
combined
use
data
ground
monitoring
remote
sensing
course
consequences
drying.
According
reports
Ukrainian
Hydro-Meteorological
Center
State
Service
Ukraine,
chronology
emptying
Reservoir
was
created.
hydrological
regime
newly
formed
territory
identified
using
series
satellite
images.
dataset
compiled
Level-2
images
Landsat
8
9.
Sentinel
2
used
as
an
additional
resource.
were
processed
Application
Platform
(SNAP).
found
effect
debris
had
on
flood
level
area.
observed
recovery
streambed
Dnipro
River
its
state
before
construction
dam.
hydraulics
floodplains
complex.
There
are
streams
with
signs
yet
uncompleted
meandering
many
arms.
Clustering
spectral
characteristics
interpretation
normalized
NDCI
NDWI
indices
revealed
non-homogenous
structure
cover
bed
four
types
soil:
eutric
relictigleyic
fluvisols,
gleyic
fluvic
gleysols,
subaquatic
gleysols.
soils
diverse
granulometric
(sand,
sandy
loam,
clay)
various
degrees
moisture.
In
commonest
be
fluvisols.
determined
moisture
content
intensity
overgrowth
bed.
general
Language: Английский
Impacts of Upper Nile Mega Dams on Agricultural Environment in Downstream Country
The handbook of environmental chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
Language: Английский
Evaluation of Physicochemical Variables Following Demolition of Building Structures in and Around Kware Lake, Sokoto, Nigeria
Arid-zone Journal of Basic & Applied Research,
Journal Year:
2022,
Volume and Issue:
1(5), P. 12 - 23
Published: Oct. 1, 2022
Physical
and
chemical
factors
are
dynamic
in
nature,
anthropogenic
activities
can
affect
these
changes.
The
residents
have
used
Kware
Lake
as
a
source
of
drinking
water,
irrigation,
fishing
activities.
destruction
structural
buildings
inside
surrounding
the
lake
served
impetus
for
this
investigation.
Selected
physicochemical
were
identified,
three
study
locations
(Inlet,
Mid,
Outlet)
chosen.
For
period
six
months,
monthly
samples
water
sediment
taken
(October
2021
to
March
2022).
amounts
Ca+
,
Mg+
SO4,
NO3
found
be
significantly
changed
across
months
when
measured
using
standard
methods,
although,
Na+
values
not
there
was
little
seasonal
variation
electrical
conductivity
(EC).
However,
at
p<0.05,
variables
pH,
Biological
Oxygen
Demand
(BOD),
Dissolved
oxygen
(DO),
Ammonia
(NH4)
indicated
significant
difference
months.
Additionally,
according
investigation,
no
appreciable
variations
conductivity,
organic
carbon
(OC)
clay
between
February
2022,
elevated
pH
EC
concentrations
observed.
To
ensure
that
continue
use
daily,
continuous
monitoring
is
necessary
Language: Английский