International Journal of Forest Engineering,
Год журнала:
2024,
Номер
unknown, С. 1 - 13
Опубликована: Дек. 19, 2024
Forests
are
challenging
workplace
environments
with
rugged
and
steep
terrains
large
danger
zones
obscured
by
dense
forest
stands.
Additionally,
there
often
restrictions
on
mobile
communication
networks,
the
Internet,
or
Global
Navigation
Satellite
Systems
(GNSS)
reception.
Therefore,
technologies
supporting
detection
of
people
in
have
not
been
broadly
applied
forestry.
During
field
test,
two
prototypes
enabling
via
ultra-wideband
(UWB)
Bluetooth
low
energy
(BLE)
were
evaluated.
The
precision,
accuracy,
distance,
rates
determined.
Furthermore,
influence
line
sight,
that
is,
visual
path
between
points,
was
considered.
With
an
overall
Distance
Bias
0.44
m
RMSE
1.52
m,
UWB
sensor
allowed
precise
within
zones,
30
(mean
28.4
m;
90%
CI:
22.33–30.00
m)
50
43.9
36.81–49.63
m);
therefore,
it
is
well
suited
for
use
during
felling
a
chainsaw.
BLE
presence
even
at
greater
distances
83.66
62.45–103.05
would
be
suitable
fully
mechanized
timber
harvesting.
However,
sensors
still
lack
ability
to
determine
distances.
European Journal of Forest Research,
Год журнала:
2024,
Номер
143(4), С. 1083 - 1095
Опубликована: Март 26, 2024
Abstract
This
article
introduces
a
new
basis
for
optimising
cable
corridor
layouts
in
timber
extraction
on
steep
terrain
by
using
digital
twin
of
forest.
Traditional
approaches
generating
rely
less
accurate
contour
maps,
which
can
lead
to
infeasible
supports,
undermining
confidence
the
generated
layouts.
We
present
detailed
simulational
approach
uses
high-resolution
tree
maps
and
models
compute
realistic
representations
all
possible
corridors
given
terrain.
applied
established
methods
forestry
feasible
designated
area,
including
rope
deflection,
determining
sufficient
anchors
placing
intermediate
supports
where
necessary.
The
proposed
individual
trajectories
form
foundation
an
optimised
overall
layout
that
enables
reduction
installation
operation
costs
promotes
sustainable
practices
As
next
step
we
aim
mathematically
optimise
based
multiple
criteria
(cost,
ergonomic
aspects,
ecological
aspects),
integrate
results
into
user-friendly
workflow.
Sustainability,
Год журнала:
2025,
Номер
17(8), С. 3284 - 3284
Опубликована: Апрель 8, 2025
China
has
developed
its
own
“CDM”,
i.e.,
the
Certified
Emission
Reduction
(CCER)
scheme.
International
carbon
organizations
and
individuals
are
interested
in
CCER
mechanism.
We
searched
“CCER”
web
of
science
and,
unfortunately,
found
no
previously
published
studies
that
provide
a
detailed
description
CCER,
especially
forestry
projects.
This
paper
reviews
history,
development,
current
status
introduced
components
program,
including
methodology
system,
registration
trading
DOEs.
In
addition,
we
further
development
process,
project
design,
validation
registration,
implementation,
monitoring,
emission
reduction
accounting,
verification,
registration.
Recommendations
proposed,
expanding
methodologies,
incorporating
advanced
technologies,
optimizing
monitoring
frameworks,
pursuing
international
collaboration.
study
provides
policy
technical
guidance
for
sustainable
China’s
forest
market.
