Sustainability,
Год журнала:
2024,
Номер
16(17), С. 7377 - 7377
Опубликована: Авг. 27, 2024
The
escalating
pace
of
migration
and
urbanization
in
Nepal
has
triggered
profound
alterations
land
use
practices.
This
event
resulted
a
considerable
diminution
ecological
diversity
substantial
decline
the
potential
for
carbon
sequestration
other
ecosystem
services,
thereby
impeding
climate
change
mitigation
efforts.
To
address
this,
comprehensive
assessment
storage
was
conducted
from
2000
to
2019
forecasted
2050
Nepal.
Employing
Markov
chain
InVEST
models,
this
study
evaluated
loss
gain
carbon,
elucidating
its
economic
value
spatial
distribution.
findings
revealed
that
were
1.237
1.271
billion
tons,
respectively,
with
projected
increase
1.347
million
tons
by
2050.
Carbon
between
amounted
34.141
which
is
anticipated
surge
76.07
2050,
translating
valuations
110.909
378.645
USD,
respectively.
Forests
emerged
as
pivotal
storage,
exhibiting
higher
pooling
than
types,
expanding
37%
42%
total
area
predicted
year
Notably,
distribution
concentrated
parts
terai
mountain
regions,
alongside
significant
portions
hilly
terrain.
offer
valuable
insights
governing
REDD+
developing
implementing
forest
management
policies.
results
emphasize
importance
providing
incentives
local
communities
judiciously
promote
effective
conservation
measures.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Март 5, 2024
Abstract
Urban
green
space
is
a
direct
way
to
improve
the
carbon
sink
capacity
of
urban
ecosystems.
The
storage
assessment
megacity
spaces
great
significance
service
function
ecosystems
and
management
zoning
in
future.
Based
on
multi-period
remote
sensing
image
data,
this
paper
used
CASA
model
InVEST
analyze
spatio-temporal
variation
driving
mechanism
Shenzhen
discussed
applicability
two
models
estimation
space.
research
results
showed
that,
from
2008
2022,
addition
rapid
expansion
construction
land,
area
other
land
types
significant
decrease
trend.
that
shows
trend
reduction
amounts
are
0.8
×
106
t
(CASA
model)
0.64
(InVEST
model),
respectively.
evaluation
show
megacities,
spatial
lower
than
model,
more
accurate
estimating
can
provide
scientific
basis
for
with
goal
"dual
carbon".
Ecological Indicators,
Год журнала:
2024,
Номер
159, С. 111601 - 111601
Опубликована: Янв. 26, 2024
Urban
forests
can
absorb
carbon
dioxide
for
urban
CO2
emission
mitigation.
However,
the
potential
capacity
of
forest
sequestration
(CS)
and
its
drivers
remain
unclear
in
agglomerations
under
rapid
urbanization.
In
our
study,
net
primary
productivity
(NPP)
built-up
areas
was
reconstructed
Harbin-Changchun
agglomeration
(HCUA)
from
2000
to
2020
reflect
CS,
spatial
CS
patterns
were
further
explored
using
Geodetector
model.
Our
results
showed
that
HCUA
has
experienced
urbanization
over
past
20
years.
Across
gradient,
higher
new
developing
than
old
developed
all
The
increased
gradually
2020,
especially
large
areas.
skewed
toward
low
(<100
g·m−2)
medium
value
(100–300
class
distributions
years;
however,
proportion
high
(>300
show
an
overall
increasing
trend
small,
low-altitude
total
0.35
Mt·C·yr−1
2.06
could
offset
approximately
2.23
%
emissions
2000,
5.08
2020.
Natural
factors,
such
as
temperature,
mainly
determined
changes
distribution.
addition,
we
found
morphology
build-up
area,
construction
height,
population
density,
gross
national
product,
significantly
influence
CS.
We
there
may
exist
threshold
area
product
affecting
variation.
interaction
between
natural
anthropogenic
factors
had
stronger
explanatory
power
variation
study
help
city
managers
formulate
low-carbon
development
strategies
address
negative
impacts
climate
change
realize
cities.
Trees Forests and People,
Год журнала:
2024,
Номер
16, С. 100561 - 100561
Опубликована: Май 10, 2024
The
population
and
economic
growth
in
cities
significantly
contribute
to
greenhouse
gas
(GHG)
emissions,
making
them
potential
protagonists
mitigating
these
emissions.
However,
there
is
a
lack
of
research
on
carbon
areas
the
Brazilian
northeastern
interior.
In
this
context,
study
analyzed
urban
squares
as
elements
for
climate
change
mitigation
global
warming,
highlighting
importance
spaces
local
biodiversity
sustainability
cities,
providing
basis
future
related
theme
region.
Six
were
selected
three
conurbated
municipalities
(Barbalha,
Crato
Juazeiro
do
Norte,
Ceará
State)
semiarid
zone,
encompassing
all
individuals
with
diameter
at
breast
height
(DBH)
≥
5cm.
Carbon
quantification
occurred
through
direct
means
(analysis
leaf,
fine
branch,
stem
samples)
indirect
means,
using
DBH
calculate
biomass
carbon.
A
total
554
from
39
species
18
families
recorded,
Fabaceae,
Arecaceae,
Bignoniaceae
being
prominent.
Shannon
index
(H')
ranged
0.85
2.45,
Simpson
(C')
0.35
0.88,
Pielou
evenness
(J')
0.38
0.86.
Mean
contents
varied
47.5%
57.2%
different
tree
compartments,
Schinus
terebinthifolia
Raddi
standing
out
high
organic
matter
values
(96.2%)
content
(55.9%)
leaves.
Praça
da
Sé
(Crato)
presented
highest
concentrations
plant
stored
significant
amount
sequestered
(709.24t).
Over
one
year,
an
increase
0.29
t/ha−1
1.04
CO2
was
observed.
results
highlight
fundamental
square
flora,
identifying
crucial
allies
capture
storage
reducing
GHG
Forests,
Год журнала:
2024,
Номер
15(9), С. 1488 - 1488
Опубликована: Авг. 25, 2024
Cities
play
a
critical
role
in
anthropogenic
CO2
emissions,
which
exacerbate
climate
change
and
impact
urban
populations.
Urban
green
infrastructure,
such
as
trees,
provides
essential
ecosystem
services,
including
reducing
atmospheric
levels.
However,
there
is
significant
knowledge
gap
regarding
the
of
trees
on
semiarid,
polluted
cities
like
Tehran,
capital
largest
metropolis
Middle
East.
This
study
assesses
carbon
sequestration
storage
potential
Tehran’s
infrastructure
using
i-Tree
Eco
model.
A
randomized
cluster
sampling
method
was
employed,
collecting
data
species
composition,
diameter
at
breast
height
(DBH),
total
tree
height.
The
results
indicate
that
sequester
approximately
60,102
tons
per
year,
equivalent
to
220,393
CO2.
net
about
254,579
tons,
933,455
Parks
spaces
demonstrate
highest
rate
hectare,
followed
by
services
land
use.
Prioritizing
planting
with
high
rates
Cupressus
arizonica
(Arizona
cypress)
sempervirens
L.
var.
horizontalis
(Mediterranean
could
enhance
efforts
Tehran.
These
provide
valuable
insights
into
environmental
different
use
types,
may
aid
development
effective
policies
management
strategies
semiarid
areas
other
similar
settings.
Land,
Год журнала:
2023,
Номер
12(12), С. 2160 - 2160
Опубликована: Дек. 13, 2023
With
regard
to
the
aims
of
achieving
“Dual
Carbon”
goal
and
addressing
significant
greenhouse
gas
emissions
caused
by
urban
expansion,
there
has
been
a
growing
emphasis
on
spatial
research
prediction
carbon
emissions.
This
article
examines
land
use
data
from
2000
2020
combines
Grid
PLUS
model
predict
in
2030
through
multi-scenario
simulation.
The
findings
indicate
following:
(1)
Between
2020,
construction
increased
95.83%,
with
also
increasing.
(2)
By
2030,
for
NDS
(natural
development
scenario),
are
expected
peak
at
6012.87
×
104
t.
Regarding
ratio
obtained
EDS
(economic
is
projected
grow
3990.72
km2,
6863.29
For
LCS
(low-carbon
“carbon
peak”
be
reached
before
2030.
(3)
intensity
decreases
as
city
size
increases.
(4)
shift
center
emission
all
movement
towards
southeast.
Studying
trends
regional
change
patterns
beneficial
optimizing
structure,
thereby
enabling
us
achieve
low-carbon
reductions
sustainable
development.
