Hydrological Processes,
Journal Year:
2023,
Volume and Issue:
37(4)
Published: April 1, 2023
Abstract
Concentration‐discharge
(C‐Q)
relationship
in
streamflow
provides
insights
into
hydrological
transport
at
the
catchment
scale.
Changes
connectivity
during
runoff
events
often
dominate
flood
and
solute
export
karst
catchment.
However,
only
few
studies
have
explored
intra‐event
C‐Q
relationships
how
they
are
affected
by
In
this
study,
we
underground
channel
flows
integrating
concentration,
discharge
modelled
flow
age
a
1.25
km
2
southwest
China.
We
apply
piecewise
functions
to
characterize
on
rising
falling
limbs
of
hydrograph.
Geogenic
solutes
exhibited
dilution
patterns
event,
which
could
be
fitted
two
power‐law
models
with
different
coefficients
limbs.
Affected
strong
between
surface
subsurface,
hillslope
depression,
steeper
slope
limb
indicated
an
exhaustible,
proximal
source,
that
is,
groundwater.
contrast,
soil
enriched
changed
from
enrichment
event.
The
pattern
occurring
early
was
caused
distal
plentiful
sources
water.
Whilst
depression
latter
limb.
On
hydrograph,
implied
small
fractures
another
source
zone
soil‐enriched
addition
layer
depression.
behaviours
can
combination
parabola
model
power
law
for
limbs,
respectively.
current
study
highlights
variations
Which
is
crucial
assession
hydrochemical
processes
fertilization
management
area.
Earth Surface Processes and Landforms,
Journal Year:
2024,
Volume and Issue:
49(12), P. 3765 - 3778
Published: July 9, 2024
Abstract
Quantifying
suspended
sediment
concentration‐runoff
(SSC‐Q)
hysteresis
can
help
to
understand
the
source
and
transport
mechanism
of
sediment.
Due
unique
lithology,
shallow
soil,
high
infiltration
capacity,
complex
geomorphology
heterogeneous
landscape
karst
watersheds
in
southwestern
China,
SSC‐Q
patterns
remain
unclear
this
region.
In
present
study,
index
(HI)
was
used
quantify
pattern.
The
effects
rainfall
runoff
on
HI
were
also
evaluated
from
2014
2019
Mahuangtian
(2.26
km
2
)
Muzhaihe
(0.09
watersheds.
results
showed
that
clockwise
loops
accounted
for
more
than
60%
total
two
contrast,
counter‐clockwise
figure‐eight
occupied
no
30%
10%
patterns,
respectively.
These
differences
probably
resulted
spatial
distribution
sources
hydrological
connectivity.
significantly
affected
by
maximum
discharge
watershed
(
P
<
0.05)
flashiness
watershed.
This
may
be
attributed
their
different
3D
hydrogeological
structure,
lithology
size.
study
facilitate
a
better
understanding
dynamics
provide
important
guidance
accurately
implementing
soil
water
conservation
strategies
areas.
Frontiers in Microbiology,
Journal Year:
2023,
Volume and Issue:
14
Published: March 8, 2023
The
occurrence
of
cyanobacterial
blooms
in
summer
are
frequently
accompanied
by
the
succession
phytoplankton
communities
freshwater.
However,
little
is
known
regarding
roles
viruses
succession,
such
as
huge
reservoirs.
Here,
we
investigated
viral
infection
characteristics
and
bacterioplankton
during
bloom
Xiangxi
Bay
Three
Gorges
Reservoir,
China.
results
indicated
that
three
distinct
stages
two
successions
were
observed.
From
cyanobacteria
diatom
codominance
to
dominance,
first
involved
different
phyla
led
a
Microcystis
bloom.
dominance
Anabaena
codominance,
second
was
Cyanophyta
genera
resulted
persistence
structural
equation
model
(SEM)
showed
virus
had
positive
influence
on
community.
Through
Spearman’s
correlation
redundancy
analysis
(RDA),
speculated
both
increase
lysis
eukaryotic
community
lysogeny
may
contributed
blooms.
In
addition,
nutrients
supplied
might
benefit
sustain
cyanobacteria.
Based
hierarchical
partitioning
method,
variables
still
have
marked
effect
dynamics
community,
although
environmental
attributes
major
factors.
Our
findings
suggested
played
multiple
potential
help
success
Bay.
Under
background
increasingly
serious
worldwide,
our
study
great
ecological
significance
for
understanding
population
controlling
Stochastic Environmental Research and Risk Assessment,
Journal Year:
2023,
Volume and Issue:
38(1), P. 233 - 250
Published: Oct. 4, 2023
Abstract
This
study
applies
novel
risk
measures,
called
Orlicz
risks,
to
the
and
uncertainty
evaluation
of
streamflow
discharge
as
a
primary
driver
hydrological
hydraulic
processes
interest
in
civil
environmental
engineering.
We
consider
mixed
moving
average
process
governing
whose
statistics
are
explicitly
represented
some
product
time-scale
characterizing
flow
attenuation
jump
moment
size
frequency
jumps.
The
classical
risks
extended
so
that
not
only
upper
tail
but
also
lower
one
can
be
evaluated
within
single
mathematical
framework.
Further,
individually
quantified
tractable
manner
by
proposed
risks.
Computing
reduces
solving
pair
static
optimization
problems
solvable
semi-analytically.
involved
dynamics
consistently
specifying
few
user-dependent
parameters.
associated
Radon–Nikodym
derivatives
worst-case
model
uncertainties
obtained
byproducts.
Sufficient
conditions
for
well-posedness
discussed
numerical
algorithms
computing
them
presented.
finally
apply
framework
statistical
analysis
time
series
data
collected
at
mountainous
river
environments.
Frontiers in Plant Science,
Journal Year:
2023,
Volume and Issue:
14
Published: Dec. 28, 2023
Introduction
The
stability
of
exposed
slopes
is
prone
to
natural
disasters,
seriously
threatening
socio-economic
and
human
security.
Through
years
exploration
research,
we
proposed
an
active
permanent
greening
(APG)
method
based
on
patented
mineral
solubilizing
microorganisms
(MSMs)
as
improvement
over
the
traditional
method.
Methods
In
this
study,
selected
two
MSMs
(
Bacillus
thuringiensis
Gongronella
butleri
)
a
plant
species
Lolium
perenne
L.)
set
up
six
treatments
(T1,
T2,
T3,
T4,
T5,
T6)
investigate
effectiveness
their
combinations
with
soil
using
APG
Results
We
noted
that
both
significantly
improved
aggregate
organic
matter
content.
Of
all
treatments,
T1
treatment
exhibited
better
results,
content
increased
45.63%
137.57%,
respectively,
compared
control.
Soil
was
significant
positively
correlated
macroaggregate
negatively
microaggregates.
Using
structural
equation
modeling
analysis,
further
evaluated
mechanism
underpinning
influence
fractions
each
graded
agglomerates.
analysis
showed
influenced
by
presence
species,
primarily
realized
altering
aromatic
amide
compounds
in
agglomerates,
whereas
microaggregate
addition
MSMs,
polysaccharide
compounds.
Overall,
observed
effect
co-action
than
or
alone.
Discussion
findings
study
provide
reliable
data
theoretical
support
for
development
practical
application
gradually
develop
improve
new
approach.
