Earth and Space Science,
Journal Year:
2024,
Volume and Issue:
11(8)
Published: Aug. 1, 2024
Abstract
Large
wood
is
an
integral
part
of
many
rivers,
often
defining
river‐corridor
morphology
and
habitat,
but
its
occurrence,
magnitude,
evolution
in
a
river
system
are
much
less
well
understood
than
the
sedimentary
hydraulic
components,
due
to
methodological
limitations,
have
seldom
previously
been
mapped
substantial
detail.
We
present
new
method
for
this,
representing
advance
automated
deep‐learning‐based
image
segmentation.
From
these
maps,
we
measured
large
sediment
deposits
from
high‐resolution
orthoimages
explore
dynamics
two
reaches
Elwha
River,
Washington,
USA,
between
2012
2017
as
it
adjusted
upstream
dam
removals.
The
data
set
consists
time
series
(12.5‐cm
resolution)
constructed
using
Structure‐from‐Motion
photogrammetry
on
imagery
14
aerial
surveys.
Model
training
was
optimized
yield
maximum
accuracy
estimated
areas,
compared
manually
digitized
wood,
therefore
model
development
intended
application
were
coupled.
These
fully
reproducible
methods
resulted
15%
error
observed
total
areas
deposit
size‐distributions
over
full
spatio‐temporal
extent
data.
Areal
channel
margin
approximately
doubled
years
following
removal,
with
greatest
increases
wider,
lower‐gradient
sections.
Large‐wood
deposition
increased
start
removal
(2011)
winter
2013,
then
plateaued.
Sediment
bars
continued
grow
up
until
2016/17,
assisted
by
partially
static
framework
deposited
predominantly
during
period
2013.
Anthropocene,
Journal Year:
2022,
Volume and Issue:
38, P. 100334 - 100334
Published: April 13, 2022
Rivers
have
been
diminished,
simplified,
and
degraded
globally
by
the
concentration
of
agriculture,
transportation,
development
in
valley
bottoms
over
decades
centuries,
substantially
limiting
their
ecological
health
value.
More
recently,
climate
change
is
steadily
increasing
stress
on
aging
traditional,
gray
infrastructure.
Recent
trends
river
management
present
an
opportunity
to
address
both
degradation
stress.
A
strategic
focus
riverscapes
as
critical
natural
infrastructure
can
serve
ecosystem-based
adaptation
improve
resilience
restore
ecosystem
health.
As
ages
fails
under
stress,
there
rebuild
with
improved
understanding
value
services
that
healthy
provide.
River
bottoms,
including
source-water
wetlands
riverscape
floodplains,
are
areas
deserving
protection
restoration
build
increased
frequency
severity
fires,
floods
droughts
associated
change.
Since
need
space
water,
long-standing
restoring
flow
regimes
makes
sense.
Equally
crucial
give
rivers
freedom
exercise
(i.e.,
flood
adjust
channels).
River Research and Applications,
Journal Year:
2023,
Volume and Issue:
40(6), P. 976 - 987
Published: Feb. 1, 2023
Abstract
Large
wood
is
inherently
mobile
in
naturally
functioning
river
corridors,
yet
management
commonly
introduces
that
anchored
to
limit
hazards.
Wood
periodically
mobilized
important
for:
replacing
stationary
large
performs
diverse
physical
and
ecological
functions;
contributing
the
disturbance
regime
of
corridor;
diversifying
decay
states;
dispersing
organisms
propagules;
providing
refugia
during
floodplain
inundation
mobile‐bed
channels;
dissipating
flow
energy;
supplying
downstream
environments
including
lakes,
coastlines,
open
ocean,
deep
sea.
We
briefly
review
what
known
about
mobility
corridors
suggest
priorities
for
ongoing
research
management,
including:
structural
designs
can
pass
wood;
enhancing
piece
diversity
introduced
place;
quantifying
mobilization
transport
characteristics
natural
managed
corridors;
documentation
benefits
mobility.
River Research and Applications,
Journal Year:
2024,
Volume and Issue:
40(6), P. 887 - 942
Published: April 4, 2024
Abstract
In
this
article,
we
track
the
evolution
of
fluvial
biogeomorphology
from
middle
20th
century
to
present.
We
consider
emergence
as
an
interdisciplinary
research
area
that
integrates
knowledge
drawn
primarily
geomorphology
and
plant
ecology,
but
with
inputs
hydrology
landscape
ecology.
start
by
assembling
evidence
for
field
a
keyword
search
Web
Science
detailed
analysis
papers
published
in
two
scientific
journals:
journal—Earth
Surface
Processes
Landforms;
multidisciplinary
river
science
journal—River
Research
Applications.
Based
on
evidence,
identify
three
distinct
time
periods
development
biogeomorphology:
‘early
years’
before
1990;
transitional
decade
1990s;
period
rapid
expansion
diversification
themes,
methods
investigation
scales
since
2000.
Because
literature
is
vast,
can
only
summarize
developments
each
these
periods,
refer
recent
in‐depth
reviews
conceptual
perspectives
relevant
topics.
Thus,
rather
than
full
deep
review,
present
annotated
bibliographic
overview
biogeomorphology,
whereby
text
describes
broad
trends
supported
tables
citations
deliver
greater
detail.
end
brief
consideration
likely
future
developments.
Earth Surface Processes and Landforms,
Journal Year:
2025,
Volume and Issue:
50(3)
Published: March 14, 2025
Abstract
Despite
their
importance
for
the
structure
and
biogeomorphological
function
of
river
landscapes,
riparian
trees
wood
have
long
been
heavily
managed.
In
1991,
Gregory
et
al.
(1993)
undertook
a
walkover
survey
~60
km
streams
within
Lymington
River
catchment,
New
Forest,
England,
including
mapping
characteristics
in‐stream
large
wood,
vegetation
stream
planform.
2024,
was
repeated.
Before
fallen
were
frequently
removed
from
channels
to
improve
drainage
support
growth
non‐native
conifers
in
plantations.
Arterial
drains
also
cut
linked
realigned,
resectioned
planted
areas.
From
~1990,
major
land
management
changes
progressively
introduced,
reduction
removal
streams,
restoration
realigned
more
natural
planforms
smaller
channel
sizes
clearance
floodplains
permit
recolonisation
by
native
deciduous
species.
Comparative
analysis
1991
2024
data
reveals
>100%
increase
number
jams
trees,
with
most
hydraulically‐influential
jam
types
increasing
>200%.
These
increases
are
particularly
associated
sinuous
draining
woodland.
Streams
coniferous
woodland
heath‐scrub‐lawn‐mire
show
less
between
surveys,
low
abundances
along
disturbed
conifer
restoration.
This
has
quantified
transformation
extended
lengths
Forest
revealed
likely
degree
which
is
attributable
different
actions,
provided
insights
into
possible
future
trajectories
change.
Following
brief
training,
suitable
application
volunteers
professionals.
Repeat
surveys
decades
on
other
sites
can
quantify
planform,
providing
invaluable
consequences
actions.
Open Research Europe,
Journal Year:
2025,
Volume and Issue:
5, P. 89 - 89
Published: March 31, 2025
This
open
letter
discusses
the
importance
of
riparian
vegetation
and
misconceptions
surrounding
its
management.
It
highlights
essential
ecosystem
services
provided
by
zones,
such
as
flood
regulation,
sediment
control,
shading,
microclimate
habitat
diversity.
Despite
these
benefits,
public
misunderstanding
often
leads
to
harmful
policies
like
clear-cutting
channelization.
In
this
brief
communication,
we
emphasize
role
citizen
science
in
addressing
perception
involving
local
communities
environmental
surveys,
providing
examples
a
novel
approach
monitor
manage
forests.
This
newly
developed
process
involves
volunteer
training,
data
collection
using
smartphone
app,
analysis,
dissemination
results.
The
collected
is
validated
experts
used
inform
decision-making.
hands-on
engagement
helps
replace
anecdotal
beliefs
with
evidence-based
understanding,
fostering
better
support
for
conservation
efforts.
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
2(1)
Published: April 28, 2025
Abstract
The
widespread
use
of
channelization
for
agricultural
drainage
has
resulted
in
the
presence
numerous
channelized
headwater
streams
Midwestern
United
States,
Canada,
and
Europe.
Channelization
results
removal
instream
wood
that
is
a
critical
habitat
feature.
Quantitative
information
on
characteristics
within
how
they
compare
to
unchannelized
limited.
We
assessed
diversity,
frequency
occurrence,
amount
large
Ohio
watershed
by
conducting
small-scale
field
study
retrospective
analysis
large-scale
database.
Our
documented
amounts
central
was
similar
values
other
streams.
also
quantified
diversity
greater
than
observed
percentage
sites
with
logs,
root
wads,
mats
were
recovering
or
recently
sites.
others
from
States
quantify
stream
reduces
richness
at
least
1/2
These
suggest
may
benefit
management
strategies
increase
these
degraded
