Early Career Perspectives to Broaden the Scope of Critical Zone Science
Earth s Future,
Journal Year:
2025,
Volume and Issue:
13(2)
Published: Feb. 1, 2025
Abstract
Critical
Zone
(CZ)
scientists
have
advanced
understanding
of
Earth's
surface
through
process‐based
research
that
quantifies
water,
energy,
and
mass
fluxes
in
predominantly
undisturbed
systems.
However,
the
CZ
is
being
increasingly
altered
by
humans
climate
land
use
change.
Expanding
scope
science
to
include
both
human‐
non‐human
controls
on
important
for
anthropogenic
impacts
processes
ecosystem
services.
Here,
we
share
perspectives
from
U.S.‐based,
early
career
centered
around
broadening
focus
societally
relevant
a
transdisciplinary
framework.
We
call
increased
training
methods
collaboration
opportunities
across
disciplines
with
stakeholders
foster
scientific
community
values
alongside
physical
science.
build
existing
frameworks
highlighting
need
institutional
support
educate
graduate
students
throughout
processes.
also
graduate‐student‐led
initiatives
increase
their
own
exposure
activities
such
as
transdisciplinary‐focused
seminars
symposiums,
volunteering
local
conservation
groups,
participating
internships
outside
academia.
Language: Английский
BioRT‐HBV 1.0: A Biogeochemical Reactive Transport Model at the Watershed Scale
Journal of Advances in Modeling Earth Systems,
Journal Year:
2024,
Volume and Issue:
16(12)
Published: Nov. 30, 2024
Abstract
Reactive
Transport
Models
(RTMs)
are
essential
tools
for
understanding
and
predicting
intertwined
ecohydrological
biogeochemical
processes
on
land
in
rivers.
While
traditional
RTMs
have
focused
primarily
subsurface
processes,
recent
watershed‐scale
integrated
interactions
between
surface
subsurface.
These
emergent,
often
spatially
explicit
require
extensive
data,
computational
power,
expertise.
There
is
however
a
pressing
need
to
create
parsimonious
models
that
minimal
data
accessible
scientists
with
limited
background.
To
end,
we
developed
BioRT‐HBV
1.0,
watershed‐scale,
hydro‐biogeochemical
RTM
builds
upon
the
widely
used,
bucket‐type
HBV
model
known
its
simplicity
requirements.
uses
conceptual
structure
hydrology
output
of
simulate
including
advective
solute
transport
reactions
depend
reaction
thermodynamics
kinetics.
include,
example,
chemical
weathering,
soil
respiration,
nutrient
transformation.
The
time
series
weather
(air
temperature,
precipitation,
potential
evapotranspiration)
initial
conditions
water,
soils,
rocks
as
input,
times
rates
concentrations
waters
This
paper
presents
governing
equations
demonstrates
utility
examples
simulating
carbon
nitrogen
headwater
catchment.
As
shown
examples,
can
be
used
illuminate
dynamics
invisible,
arduous‐to‐measure
subsurface,
their
influence
observed
stream
or
river
chemistry
export.
With
easy‐to‐use
graphical
user
interface,
useful
research
tool
users
without
in‐depth
training.
It
additionally
serve
an
educational
promotes
pollination
ideas
across
disciplines
foster
diverse,
equal,
inclusive
community.
Language: Английский
Identifying preferential flow from soil moisture time series: Review of methodologies
Vadose Zone Journal,
Journal Year:
2025,
Volume and Issue:
24(2)
Published: March 1, 2025
Abstract
Identifying
and
quantifying
preferential
flow
(PF)
through
soil—the
rapid
movement
of
water
spatially
distinct
pathways
in
the
subsurface—is
vital
to
understanding
how
hydrologic
cycle
responds
climate,
land
cover,
anthropogenic
changes.
In
recent
decades,
methods
have
been
developed
that
use
measured
soil
moisture
time
series
identify
PF.
Because
they
allow
for
continuous
monitoring
are
relatively
easy
implement,
these
become
an
important
tool
recognizing
when,
where,
under
what
conditions
PF
occurs.
The
seek
a
pattern
or
quantification
indicates
occurrence
Most
commonly,
chosen
signature
is
either
(1)
nonsequential
response
infiltrated
water,
which
responses
do
not
occur
order
shallowest
deepest,
(2)
velocity
criterion,
newly
detected
at
depth
earlier
than
possible
by
nonpreferential
processes.
Alternative
signatures
also
certain
advantages
but
less
commonly
utilized.
Choosing
among
requires
attention
their
pertinent
characteristics,
including
susceptibility
errors,
bias
toward
false
negatives
positives,
reliance
on
subjective
judgments,
requirements
additional
types
data.
We
review
77
studies
applied
such
highlight
information
readers
who
want
from
data
inform
those
aim
develop
new
improve
existing
ones.
Language: Английский
The Known Unknowns of Petrogenic Organic Carbon in Soils
AGU Advances,
Journal Year:
2025,
Volume and Issue:
6(2)
Published: April 1, 2025
Abstract
Intensifying
effects
of
global
climate
change
have
spurred
efforts
to
enhance
carbon
sequestration
and
the
long‐term
storage
soil
organic
(OC).
Current
models
predominantly
assume
that
inputs
OC
are
biospheric,
is,
primarily
derived
from
plant
decomposition.
However,
these
overlook
contribution
parent
material,
including
petrogenic
(OC
petro
)
OC‐bearing
(meta‐)sedimentary
bedrock.
To
our
knowledge,
no
model
accounts
for
soils,
resulting
in
significant
gaps
understanding
about
roles
plays
soils.
Here,
we
call
cross‐disciplinary
research
investigate
transport
stability
across
bedrock–soil
continuum.
We
pose
four
key
questions
as
motivation
this
effort.
Ignoring
soils
has
implications,
overestimating
biospheric
stocks
turnover
times.
Furthermore,
lack
information
on
role
may
play
priming
microbial
communities,
well
impacts
land
management
stocks.
Language: Английский
Woody Encroachment Modifies Subsurface Structure and Hydrological Function
Ecohydrology,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 4, 2024
ABSTRACT
Woody
encroachment—the
expansion
of
woody
shrubs
into
grasslands—is
a
widely
documented
phenomenon
with
global
significance
for
the
water
cycle.
However,
its
effects
on
watershed
hydrology,
including
streamflow
and
groundwater
recharge,
remain
poorly
understood.
A
key
challenge
is
limited
understanding
how
changes
to
root
abundance,
size
distribution
across
soil
depths
influence
infiltration
preferential
flow.
We
hypothesised
that
would
increase
deepen
coarse‐root
abundance
effective
porosity,
thus
promoting
deeper
increasing
flow
velocities.
To
test
this
hypothesis,
we
conducted
study
at
Konza
Prairie
Biological
Station
in
Kansas,
where
roughleaf
dogwood
(
Cornus
drummondii
)
predominant
shrub
encroaching
native
tallgrass
prairie.
quantified
coarse
fine
roots
leveraged
moisture
time
series
electrical
resistivity
imaging
analyse
beneath
grasses.
observed
greater
fraction
compared
grasses,
which
was
concurrent
saturated
hydraulic
conductivity
porosity.
Half‐hourly
rainfall
data
show
average
through
macropores
135%
than
grasses
deepest
B
horizon,
consistent
conductivity.
Soil‐moisture
also
indicated
large
events
antecedent
wetness
promoted
more
layers
These
findings
suggest
encroachment
alters
hydrologic
processes
cascading
consequences
ecohydrological
processes,
increased
vertical
connectivity
potential
recharge.
Language: Английский