Earth Surface Processes and Landforms,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 9, 2024
Abstract
The
São
Francisco
River
in
Northeast
Brazil
has
seen
hydrological
and
morphological
changes
due
to
extensive
damming
climate
change
over
the
past
century.
In
this
study,
we
examine
influence
of
human
activities
natural
fluctuations
precipitation
on
patterns
basin
responses
lower
course
river
(LOW‐SF)
these
alterations
a
span
several
decades.
findings
indicate
decrease
water
release
by
41%
from
1995
2013
54%
2018,
solely
attributed
actions.
Furthermore,
operation
reservoirs
large
dams
resulted
reduction
seasonality.
changing
regime
caused
that
an
expansion
exposed
subaerial
fluvial
bars
LOW‐SF
channel
width.
As
result,
abandonment
small
secondary
channels
occurred,
leading
cessation
inundation
previously
buried
elevated
portions
bars,
even
during
certain
seasons.
Another
important
factor
was
spread
LOW‐SF,
which
started
areas
farthest
last
dam
series
dams,
Xingó
Dam,
nearby
regions.
This
is
lack
major
tributaries
semiarid
region
LOW‐SF.
integrated
assessment
presented
study
illustrates
both
anthropogenic
influences.
Moreover,
light
projected
declines
precipitation,
it
anticipated
phenomena
could
result
substantial
73%
flow
mid‐20th
climatic
scenario
will
lead
increased
utilization
hydroelectric
plants
more
stringent
control
downstream
cascade,
intensifying
already
documented
adverse
effects
posing
possibility
novel
adaptations.
The
rich
biodiversity
of
Amazonia
is
shaped
geographically
and
ecologically
by
its
rivers
their
cycles
seasonal
flooding.
Anthropogenic
effects,
such
as
deforestation,
infrastructure
development
extreme
climatic
events,
threaten
the
ecological
processes
sustaining
Amazonian
ecosystems.
In
this
Review,
we
explore
coupled
evolution
associated
with
terrestrial
seasonally
flooded
environments,
integrating
geological,
climatic,
genetic
evidence.
fluvial
environments
are
highly
heterogeneous,
drainage
system
historically
dynamic
continually
evolving;
a
result,
discharge,
sediment
load
strength
barriers
to
biotic
dispersal
has
changed
through
time.
Ecological
affinities
taxa,
rearrangements
variations
in
riverine
landscape
caused
past
climate
changes
have
mediated
high
diversity
found
modern-day
Amazonia.
connected
history
region's
provides
fundamental
information
for
mitigating
current
future
impacts.
However,
incomplete
knowledge
about
species
taxonomy,
distributions,
habitat
use,
interactions
occurrence
patterns
limits
our
understanding.
Partnerships
Indigenous
peoples
local
communities,
who
close
ties
land
natural
resources,
key
improving
generation
dissemination,
enabling
better
impact
assessments,
monitoring
management
systems
at
risk
from
evolving
pressures.
features
biodiverse
range
organisms
habitats.
This
Review
explores
geological
characteristics
role
shaping
region.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: June 19, 2024
Abstract
Schistosomiasis
is
a
neglected
tropical
disease
caused
by
Schistosoma
parasites.
are
obligate
parasites
of
freshwater
Biomphalaria
and
Bulinus
snails,
thus
controlling
snail
populations
critical
to
reducing
transmission
risk.
As
snails
sensitive
environmental
conditions,
we
expect
their
distribution
significantly
impacted
global
change.
Here,
used
machine
learning,
remote
sensing,
30
years
occurrence
records
map
the
historical
current
forward-transmitting
hosts
throughout
Brazil.
We
identified
key
features
influencing
suitable
habitat
determined
how
has
changed
with
climate
urbanization
over
last
three
decades.
Our
models
show
that
change
driven
broad
shifts
in
host
range,
whereas
expansion
urban
peri-urban
areas
localized
increases
suitability.
Elucidating
distribution—while
accounting
for
non-linearities
difficult
detect
from
local
case
studies—can
help
inform
schistosomiasis
control
strategies.
Environmental Research Letters,
Journal Year:
2025,
Volume and Issue:
20(3), P. 034024 - 034024
Published: Jan. 31, 2025
Abstract
The
Amazon,
the
world’s
largest
tropical
forest,
plays
a
critical
role
in
global
carbon
cycle.
It
has
large
pool
and
acts
as
major
sink.
However,
2023–2024,
compound
heatwave-drought
(CHWD)
event
(HD2023)
hit
Amazon
region,
resulting
extreme
temperatures
soil
moisture
deficits,
threatening
region’s
sink
capacity.
Using
advanced
multisource
satellite
data
meteorological
reanalysis,
we
quantified
impact
of
various
climatic
factors
on
vegetation
productivity
during
HD2023
analyzed
its
progression.
Our
findings
showed
that
led
to
530
Tg
C
decline
gross
primary
(GPP)
0.003
reduction
near-infrared
reflectance
vegetation.
strongest
phase
spanned
5
months,
causing
persistently
high
reduced
precipitation,
leading
continuous
marked
GPP.
most
severe
decrease
GPP
occurred
January
2024.
originated
northwest
gradually
spread
southeast.
Soil
was
dominant
factor
photosynthesis
across
types,
whereas
solar
radiation
mitigated
drought
evergreen
broad
forests
savannas.
Moreover,
sensitivity
CHWD
varied
ranking
grassland
>
savanna
forest.
This
study
assessed
regional
flux
Amazon.
As
climate
projections
indicate
future
increases
extremes
over
it
is
important
identify
drivers
this
cycle
Forests,
Journal Year:
2025,
Volume and Issue:
16(3), P. 423 - 423
Published: Feb. 26, 2025
The
increase
in
demand
for
timber
and
global
eucalyptus
cultivation
has
generated
controversy
regarding
its
potential
impact
on
water
resources,
especially
regions
with
limited
availability,
the
myth
that
“eucalyptus
dries
out
soil”
being
spread.
In
this
regard,
review
study
addresses
factors
influence
consumption
by
eucalyptus,
providing
solutions
to
reduce,
mitigate,
or
even
avoid
any
resources
at
a
given
site.
manuscript,
authors
reviewed
200
works
published
from
1977
2024
survey
all
information
confirm
if
factual
background
allows
someone
state
can
deplete
soil
water.
With
solid
scientific
basis,
many
research
studies
show
eucalyptus’
is
comparable
of
native
forest
species
crops
worldwide
species,
age,
edaphoclimatic
conditions,
management
practices
mainly
consumption.
On
other
hand,
it
hasty
conclusion
some
contribute
reduced
Effectively,
without
proper
management,
environmental
impacts
plantation
are
same
as
those
poorly
managed
crops.
Indeed,
cultivated
agroclimatic
zoning
correct
practices,
growth
culture
an
environmentally
activity.
By
adopting
measures
such
maintaining
sufficient
cover
ensure
ecosystem
services,
based
maps,
considering
local
specificities
(e.g.,
deeper,
sandier
soils
preferable),
selection
appropriate
carrying
capacity
each
region,
adoption
lower
planting
densities,
rotation,
will
not
negatively
affect
resources.
Sustainable
several
economic
benefits,
addition
positive
social
surrounding
communities
terms
employment
family
income,
sustainable
guarantee
viability,
demystifying
idea
trees
cause
scarcity.
herein
demonstrated
no
ground
sustain
depletion
myth.
Atmosphere,
Journal Year:
2025,
Volume and Issue:
16(4), P. 465 - 465
Published: April 17, 2025
Drought
affects
the
agricultural
sector,
posing
challenges
for
farm
management,
particularly
among
medium-
and
small-scale
producers.
This
study
uses
climate
data
from
remote
sensing
products
to
evaluate
drought
trends
in
Semear
Digital
Center’s
Agrotechnological
Districts
(DATs),
which
are
characterized
by
a
high
concentration
of
small-
medium-sized
farms
Brazil.
Precipitation
Climate
Hazards
Group
InfraRed
with
Station
(CHIRPS)
land
surface
temperature
Moderate
Resolution
Imaging
Spectroradiometer
(MODIS)
were
applied
calculate
Standardized
Precipitation–Evapotranspiration
Index
(SPEI)
6-month
timescale
2000
2024,
analysis
divided
into
2000–2012
2013–2024.
Some
limitations
noted:
MODIS
systematically
underestimated
temperatures,
while
CHIRPS
tended
underestimate
precipitation
most
DATs.
Despite
discrepancies,
these
datasets
remain
valuable
monitoring
areas
where
long-term
ground
weather
station
lacking
SPEI
assessments.
Agricultural
frequency
severity
increased
2013–2024
period.
Exceptional,
extreme,
severe,
moderate
events
rose
7.3,
5.4,
2.2
1.0
times,
respectively.
These
highlight
importance
adopting
smart
farming
technologies
enhance
resilience
DATs
change.
