Frontiers in Forests and Global Change,
Journal Year:
2024,
Volume and Issue:
6
Published: Jan. 5, 2024
As
an
important
part
of
the
terrestrial
ecosystem,
vegetation
dynamics
are
subject
to
impacts
from
both
climate
change
and
human
activities.
Clarifying
driving
mechanisms
variation
is
great
significance
for
regional
ecological
protection
achieving
sustainable
development
goals.
Here,
net
primary
productivity
(NPP)
was
used
investigate
spatiotemporal
variability
2000
2020
in
East
Africa,
its
correlations
with
factors.
Furthermore,
we
utilized
partial
derivatives
analysis
set
up
different
scenarios
distinguish
relative
contributions
climatic
factors
NPP
changes.
The
results
revealed
that
exhibited
a
significant
increase
4.16
g
C/m
2
/a
upward
trend
detected
across
71.06%
study
area.
average
precipitation,
temperature,
solar
radiation
inter-annual
variations
Africa
were
2.02,
−1.09,
0.31
gC⋅m
–2
⋅a
–1
,
respectively.
Precipitation
made
greatest
positive
contribution
among
all
factors,
while
temperature
strong
negative
contributions.
activities
changes
1.24
2.34
Moreover,
rate
larger
than
change,
role
decrease
findings
can
provide
new
evidence
deeper
understanding
ecosystem
stability
carbon
cycling
as
well
reference
decision-making
scientific
support
environmental
protection.
Carbon Research,
Journal Year:
2024,
Volume and Issue:
3(1)
Published: May 20, 2024
Abstract
In
the
global
ecosystem,
wetlands
are
vital
carbon
sinks,
playing
a
crucial
role
in
absorbing
greenhouse
gases
such
as
dioxide
and
mitigating
warming.
Accurate
estimation
of
wetland
content
is
essential
for
research
on
sinks.
However,
cycle
complex,
sinking
affected
by
climate,
topography,
water
level
conditions,
vegetation
types,
soil
other
factors.
This
has
caused
significant
challenges
current
studies,
most
focused
impact
individual
factors
often
ignoring
interaction
between
various
factors,
which
further
leads
to
uncertainty
measurements.
paper
aims
elucidate
process
cycle,
summarize
affecting
explore
interplay
their
influence
aiming
provide
theoretical
support
study
Additionally,
this
reviews
advantages
disadvantages
measurement
methods,
proposes
directions
combining
machine
learning
identifies
existing
difficulties
measurement,
offers
suggestions
serve
reference
future
sink
management.
Graphical
International Journal of Applied Earth Observation and Geoinformation,
Journal Year:
2022,
Volume and Issue:
114, P. 103064 - 103064
Published: Oct. 18, 2022
Understanding
the
variation
of
autumn
phenology
and
its
climatic
drivers
is
important
for
predicting
terrestrial
carbon
cycles
in
temperate
grasslands
China.
Using
meteorological
data
GIMMS
NDVI
during
1982–2015,
this
study
analyzed
variations
end
date
vegetation
growing
season
(EOS)
their
relationships
with
climate
The
results
showed
that
EOS
was
delayed
by
1.62
days/decade
across
For
different
grassland
types,
1.65,
1.66,
1.34
meadows,
steppes,
desert
respectively.
In
terms
change
effects,
increasing
summer
precipitation
temperatures
crucial
delaying
increase
could
delay
EOS,
especially
whereas
significantly
meadows.
addition,
we
found
influences
nighttime
daytime
warming
on
were
asymmetric.
Specifically,
maximum
temperature
meadows
minimum
steppes
had
a
weakly
advancing
effect
Our
highlights
distinct
monthly
types
indicates
impacts
should
be
included
simulating
ecosystems
arid/semi-arid
regions.
Ecological Indicators,
Journal Year:
2023,
Volume and Issue:
154, P. 110533 - 110533
Published: June 24, 2023
Both
net
primary
productivity
(NPP)
and
vegetation
phenology
play
essential
roles
in
influencing
the
carbon
sequestration
of
terrestrial
ecosystems.
However,
relationship
between
NPP
remains
unclear
under
effects
global
warming.
This
study
used
Geodetector
to
analyze
interaction
mechanisms
climate,
phenology,
elevation,
Yunnan,
China.
The
results
are
as
follows.
(1)
is
positively
correlated
with
NDVI,
LOS,
EOS,
TEMP,
PREC
SRAD,
negatively
ELEV,
NDBI
SOS.
main
factors
leading
variation
differ
region.
(2)
spatial
distribution
LOS
Yunnan
Province
mainly
influenced
by
monsoon,
showing
a
pattern
high
southwest
low
northeast,
reason
for
NPP.
(3)
In
high-altitude
region
northwest
altitude
factor
affecting
variation.
(4)
tropical
monsoon
forest
southern
SRAD
cause
changes.
(5)
Despite
having
small
effect
on
NPP,
SOS
was
only
phenological
that
showed
significant
linear
reveals
complex
diverse
interactions
different
regions
provides
new
perspective
understanding
cycle
ecological
processes
ecosystems
