Frontiers in Sustainable Cities,
Год журнала:
2024,
Номер
6
Опубликована: Дек. 18, 2024
The
life
cycle
climate
impacts
of
urban
parks
are
poorly
known.
Whereas
vegetation
and
soils
can
be
carbon
sinks,
building
products,
energy
use,
processes
cause
emissions.
Several
studies
acknowledge
the
need
for
further
assessment
parks,
especially
regarding
vegetation,
soil
organic
carbon,
management
design,
together
with
development
supportive
tools
climate-wise
planning.
To
deepen
our
understanding
flows
we
applied
(LCA)
studied
dioxide
(CO
2
)
emissions
removals
five
in
Helsinki,
Finland.
components
were
divided
into
four
categories:
site
preparation,
covering
surface
structures,
growing
media,
systems
installations.
According
to
findings,
CO
ranged
from
27.08
61.45
kgCO
e/m
11.35
16.23
uncertainty.
Planted
woody
existing
forested
areas
had
highest
uptake
among
types.
Moreover,
media
caused
on
average
35%
total
As
significant
volumes
remain
necessary
support
growth
establishment
plantings,
finding
less
emission
intensive
alternatives
peat-based
medium
becomes
essential.
Other
main
sources
included
transportation,
replacements
materials,
but
their
dominance
is
highly
dependent
use
maintenance
park.
LCA
offers
a
robust
framework
quantification
greenhouse
gas
evolving
towards
including
storages.
However,
inclusion
living
organisms
would
require
changes
mindset
LCA.
level
maturity
methods
differs
significantly
between
park
components.
Data
lacking
nursery
production,
end-of-life
phases
soils,
mulches.
We
also
identified
uncertainties
estimations
by
lawns,
meadows
due
software
limitations
lack
data
local
context.
Simulating
dynamic
plantings
raises
additional
questions,
forecast
accurate
meteorological
conditions
changing
climate.
This
research
highlights
more
holistic
inform
low-carbon
landscape
industries.
Urban forestry & urban greening,
Год журнала:
2024,
Номер
96, С. 128343 - 128343
Опубликована: Май 7, 2024
Residential
green
spaces
are
an
integral
part
of
urban
infrastructure
and
its
role
in
climate
change
adaptation
mitigation.
Various
typologies
changing
planning
practices
affect
the
amount
structure
residential
greenery,
which
has
a
direct
impact
on
benefits.
While
benefits
have
received
increasing
attention,
there
is
still
limited
knowledge
how
related
vegetation
capacity
to
deliver
This
paper
aims
address
this
gap
by
determining
vegetation,
focussing
specifically
mitigation
adaptation.
With
case
study
Helsinki,
characterized
high
share
areas,
first
examines
construction
year
density
properties.
Second,
it
estimates
carbon
sequestration
summer
temperatures
present-day
climate.
The
applies
spatial
modelling
regression
analysis
estimate
studied
dependent
variables,
while
controlling
via
gross
floor
area
buildings.
demonstrates
that
average
as
measured
using
canopy
cover,
declined
15
percentage
points
from
1970s
early
2010s
low
ratio
decreased
constantly
over
periods
studied.
decline
cover
particular
reduced
vegetation.
highlights
significant
provides.
It
also
stresses
importance
ensuring
sufficient
tree
permeable
surfaces
cities
with
progressive
agenda
throughout
chain
planning,
construction,
subsequent
property
management
stages.
Biogeosciences,
Год журнала:
2025,
Номер
22(3), С. 725 - 749
Опубликована: Фев. 10, 2025
Abstract.
Many
cities
seek
carbon
neutrality
and
are
therefore
interested
in
the
sequestration
potential
of
urban
vegetation.
However,
heterogeneous
nature
vegetation
environmental
conditions
limits
comprehensive
measurement
efforts,
setting
expectations
for
cycle
modelling.
In
this
study,
we
examined
performance
three
models
–
Jena
Scheme
Biosphere–Atmosphere
Coupling
Hamburg
(JSBACH),
Lund–Potsdam–Jena
General
Ecosystem
Simulator
(LPJ-GUESS),
Surface
Urban
Energy
Water
Balance
(SUEWS)
estimating
rates
both
irrigated
non-irrigated
lawns,
park
trees
(Tilia
cordata),
forests
(Betula
pendula)
Helsinki,
Finland.
The
test
data
included
observations
various
parameters
component
fluxes
such
as
soil
moisture
temperature,
sap
flow,
leaf
area
index,
photosynthesis,
respiration,
net
ecosystem
exchange.
Our
analysis
revealed
that
these
effectively
simulated
seasonal
annual
variations,
well
impacts
weather
events
on
related
factors.
validation
absolute
level
modelled
proved
difficult
due
to
differences
scale
models,
particularly
mature
trees,
fact
exchange
measurements
areas
include
some
anthropogenic
emissions.
Irrigation
emerged
a
key
factor
often
improving
sequestration,
while
tree-covered
demonstrated
greater
compared
lawns
an
scale.
Notably,
all
similar
mean
over
sector
studied
study
period.
JSBACH,
LPJ-GUESS
exhibited
higher
but
lower
grassland-type
areas.
All
indicated
notable
year-to-year
rates,
since
same
factors,
temperature
moisture,
affect
processes
assimilating
releasing
carbon,
connecting
years
high
or
low
single
meteorological
means
failed.
Overall,
research
emphasizes
importance
integrating
diverse
types
irrigation
into
modelling
efforts
inform
sustainable
planning
climate
change
mitigation
strategies.
