Journal of Soils and Sediments,
Journal Year:
2023,
Volume and Issue:
24(2), P. 1039 - 1055
Published: Nov. 14, 2023
Abstract
Purpose
The
increasing
demand
for
fertilizers
and
their
rising
prices
has
led
to
the
search
new
nutrient
sources,
especially
in
rural
areas
where
family
farming
predominates.
In
this
study,
we
assessed
potential
of
reusing
sediment
deposited
surface
reservoirs
as
a
soil
conditioner
semiarid
region,
focusing
on
two
features:
characterization
physicochemical
properties
at
regional
scale
effect
substrate
containing
growth
physiology
maize.
Methods
Sediment
from
beds
14
was
investigated,
them
were
used
preparation
maize
cultivation.
Differences
between
sediments
analyzed
using
ANOVA
Tukey’s
test
significance
level
0.05.
experimental
design
plant
experiment
entirely
randomized,
factorial
arrangement
sources
four
doses
sediment:
25,
50,
75,
100%
economic
dose
100
t
ha
−1
previously
proposed
study
region.
Two
treatments
considered
controls:
only
treatment
chemical
fertilizer.
data
each
submitted
independently
considering
means
compared
by
test.
Results
general,
contents
higher
than
soil.
For
instance,
concentrations
nitrogen
potassium
three
10
times
sediment,
soil,
organic
matter
content
up
six
higher.
experiment,
source
influenced
all
variables.
addition
increased
chlorophyll
content,
photosynthesis
rate,
leaves
relation
There
no
significant
differences
biomass
production
plants’
extraction
with
largest
most
enriched
when
Conclusions
showed
feasibility
due
enrichment
nutrients,
matter,
fine
particles.
Therefore,
reuse
improve
livelihoods
food
security,
well
contributing
circular
economy.
However,
prior
analysis
is
required
avoid
contamination
set
appropriate
dose,
high
spatial
variability
characteristics.
Hydrological Sciences Journal,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 7, 2025
Severe
droughts
have
historically
plagued
Brazil's
semi-arid
region,
leading
to
mass
migrations
and
significant
loss
of
life.
Although
these
events
sparked
a
unique
coevolutionary
relationship
between
humans
water
systems
in
this
historical
narrative
remains
largely
unexplored
from
hydrological
point
view.
This
study
delves
into
the
multifaceted
history
development
infrastructure
region
by
compiling
analyzing
records,
official
documents,
drought
literature
novels,
newspaper
reports.
Thus,
points
that
societal
perception
regional
memory
emerge
as
feasible
pathways
heritage
toward
community
resilience
droughts.
Through
analyse,
valuable
insights
are
provided
for
understanding
human-water
system
interactions
offering
potential
lessons
other
regions
grappling
with
similar
challenges.
Sustainability,
Journal Year:
2022,
Volume and Issue:
14(21), P. 14117 - 14117
Published: Oct. 29, 2022
Small
reservoirs
play
an
important
role
in
providing
water
to
rural
communities.
Increased
construction
of
small
mitigate
the
effects
droughts
leads
a
High-density
Reservoirs
Network
(HdRN)
reservoirs,
which
can
potentially
modify
streamflows
both
dry
and
wet
periods.
However,
there
is
lack
understanding
interannual
behavior
flow
retention
impact
future
increases
number
mainly
for
HdRN
dryland
catchments.
This
research
aims
determine
possible
increase
on
hydrological
networks,
evaluating
annual
flows
generated
at
outlet
watershed
scenarios
with
different
densities
(number
per
area).
The
study
area
was
Conceição
river
catchment
(3347
km2)
semiarid
Brazil.
model
developed
SWAT.
obtained
appropriate
results
daily
streamflows,
values
0.63,
0.81,
0.53%
NSE,
KGE,
PBIAS,
respectively.
current
density
region
estimated
0.068
square
kilometer
(res/km2).
Eight
expansion
were
defined
between
0.1
res/km2
3.0
res/km2.
showed
that
influence
runoff
reduction
mostly
occurs
probability
exceedance
1%
10%
month
very
months
high
peaks
flow.
due
stronger
during
years
(up
30%)
than
8%),
it
tended
consecutive
rain
(from
about
7%
first
year
20%
last
worst
scenario),
may
intensify
period
extended
droughts.
provides
insights
variability
retention,
help
resources
agencies
better
prepare
hydrologic
extremes
(droughts
floods).
