Comparative analysis of EPIK, DRASTIC, and DRASTIC-LUC methods for groundwater vulnerability assessment in karst aquifers of the Western Amazon Basin
Environmental Earth Sciences,
Journal Year:
2025,
Volume and Issue:
84(3)
Published: Jan. 22, 2025
Language: Английский
Investigating Groundwater–Surface Water Interactions and Transformations in a Typical Dry–Hot Valley Through Environmental Isotopes Analysis
Water,
Journal Year:
2025,
Volume and Issue:
17(6), P. 775 - 775
Published: March 7, 2025
This
study
investigates
the
hydrological
processes
and
water
body
transformation
mechanisms
in
Yuanmou
dry–hot
valley,
focusing
on
precipitation,
well
water,
spring
river
reservoir
during
both
wet
dry
seasons.
The
spatiotemporal
characteristics
significance
of
hydrogen
oxygen
stable
isotopes
across
these
bodies
were
analyzed.
Key
findings
included
following:
(i)
Seasonal
variations
shallow
groundwater
minimal,
primarily
driven
by
differences
vapor
sources
transport
distances
seasonal
effects
mid-deep
influenced
leakage
recharge
from
deep
aquifers
temperature
variations,
respectively.
(ii)
line-conditioned
excess
(lc-excess)
deviated
significantly
Local
Meteoric
Water
Line,
indicating
that
precipitation
occurred
through
slow
infiltration
piston
flow
with
significant
isotopic
fractionation.
(iii)
River
was
recharged
groundwater,
water;
lateral
inflow;
groundwater;
transfer,
strong
evaporation
effects.
(iv)
Using
a
binary
isotope
mass
balance
model,
ratios
to
surface
calculated
be
40%
60%,
Additionally,
season,
proportion
increased.
provides
valuable
insights
into
cycle
valleys
offers
scientific
basis
for
sustainable
development
management
resources
arid
regions.
Language: Английский
A low-cost approach to map natural groundwater recharge potential zones of a tropical watershed with complex land occupation
Journal of South American Earth Sciences,
Journal Year:
2024,
Volume and Issue:
140, P. 104915 - 104915
Published: May 5, 2024
Language: Английский
Dynamics of Hydrological Drought: Unveiling the Impact of Groundwater and El Niño Events on Forest Fires in the Amazon
Published: Jan. 1, 2024
Over
recent
decades,
anthropogenic
forest
fires
have
significantly
altered
vegetation
dynamics
in
the
Amazon
region.
While
human
activities
primarily
initiate
these
fires,
their
escalation
is
intricately
linked
to
climatic
conditions,
particularly
droughts
induced
by
warm
El
Niño
phase.
This
study
investigates
impact
of
on
Amazon,
focusing
role
groundwater
and
events.
Utilizing
comprehensive
drought
indicators
at
various
soil
depths
standardized
precipitation
indexes,
research
spans
from
2004
2016,
revealing
a
consistent
decrease
humidity
conditions
across
surface
moisture,
root
zone
storage
levels.
With
its
slower
response
changes,
emerges
as
crucial
factor
influencing
hydrological
patterns
Amazon.
The
spatial
distribution
explored,
highlighting
areas
with
lower
concentrations
northeast
correlation
between
positive
rates
change
burned
area
fraction
during
Notably,
underscores
substantial
increase
2015-2016,
characterized
very
strong
Niño.
nuanced
understanding
interplay
events
provides
critical
insights
for
developing
tailored
fire
risk
index
ecologically
significant
vulnerable
basin,
subsidizing
strategies
mitigating
enhancing
preparedness.
Language: Английский