Revista Facultad de Ciencias Básicas,
Journal Year:
2024,
Volume and Issue:
19(1), P. 13 - 32
Published: Dec. 26, 2024
La
deforestación
se
ha
convertido
en
un
problema
crítico
muchas
regiones
del
mundo,
particularmente
áreas
de
alto
valor
ambiental
y
cultural,
como
el
resguardo
indígena
Llanos
Yarí
Yaguara
II.
Comprender
alcance
e
impacto
la
este
requiere
enfoque
metodológico
sólido
para
analizar
manera
efectiva
los
cambios
cobertura
suelo.
Este
artículo
analiza
diferentes
algoritmos
clasificación
determinar
cuál
ofrece
mayor
fiabilidad
identificación
debido
a
deforestación,
combinación
con
conocimiento
zona
cartografía
uso
Se
utiliza
teledetección,
una
herramienta
ampliamente
empleada
propósito,
que
aplica
dos
no
supervisada
cinco
datos
imágenes
satelitales,
Landsat
8
9.
satelitales
indígena,
revelando
baja
precisión
supervisada.
En
contraste,
supervisados,
particular
Máquina
Soporte
Vectorial
Distancia
Mahalanobis,
logran
97
%,
apoyando
deforestadas.
aplicación
método
Máxima
Verosimilitud
ArcGIS
análisis
multitemporal
confirma
drástica
disminución
las
clasificadas
vegetación
abundante.
Además,
destaca
significativa
pérdida
bosque
denso
durante
seis
años,
lo
subraya
urgencia
acciones
coordinadas
prevenir
más
daños
ecológicos
sociales.
Los
resultados
estudio
recalcan
importancia
utilizar
alta
proporcionan
base
confiable
gestión
toma
decisiones
políticas
territorios
indígenas.
Ecological Indicators,
Journal Year:
2023,
Volume and Issue:
153, P. 110415 - 110415
Published: May 29, 2023
Vegetation
is
among
the
key
elements
of
ecosystems,
and
normalized
difference
vegetation
index
(NDVI)
most
frequently
used
tools
for
studying
changes
in
regional
dynamics.
Studying
these
their
drivers
essential
understanding
interactions
between
ecosystems;
therefore,
here,
we
analyzed
spatial
temporal
patterns
NDVI
Jilin
Province
influencing
factors.
The
correlation
climatic
factors
was
using
Pearson's
analysis.
Additionally,
explored
human
activity
geographically
weighted
regression
results
were
as
follows:
(1)
From
1998
to
2020,
although
trends
different
types
showed
some
differences
general,
they
all
an
increasing
trend.
(2)
ranged
from
−
0.031
0.046.
values
exhibited
a
trend
toward
growth
regions.
(3)
Climate
change
are
more
important
than
improving
vegetation.
(4)
Among
factors,
negative
temperature
stronger
positive
correlation,
while
correlations
precipitation
equally
strong.
(5)
Human
such
GDP
population
have
mostly
effects
on
NDVI,
whereas
land-use
type
shifts
effects.
this
study
contribute
deeper
change.
discussions
can
provide
theoretical
references
ecological
management
sustainable
development
Province.
Land,
Journal Year:
2024,
Volume and Issue:
13(4), P. 533 - 533
Published: April 17, 2024
Arid
zone
ecosystems,
integral
to
terrestrial
systems,
exhibit
relatively
low
stability
and
are
prone
influences
from
human
activities
climate
change.
To
elucidate
the
influence
on
ecological
environment
of
arid
by
change
activities,
paper
takes
normalized
difference
vegetation
index
(NDVI)
as
an
evaluation
ecosystem
uses
trend
analysis
NDVI
variation
characteristics
in
Shiyang
River
Basin
(SRB)
1990
2020.
Simultaneously
using
methods
such
partial
correlation
residual
evaluate
impact
changes.
This
study
yielded
several
key
findings:
(1)
The
SRB
exhibits
increasing
0.034/10a
interannual
variation.
(2)
relation
cooperatives
between
deviation
precipitation
temperature
range
−0.735
0.770
−0.602
0.773,
respectively.
(3)
changes
land
use
groundwater
depth
have
a
certain
(4)
proportion
areas
with
significant
contributions
(contribution
rate
greater
than
60%)
is
33.5%
22.5%,
Frontiers in Ecology and Evolution,
Journal Year:
2024,
Volume and Issue:
12
Published: March 26, 2024
Vegetation
to
some
extent
can
reflect
the
overall
state
of
ecological
environment,
and
increasing
vegetation
cover
improve
quality
environment.
The
southwest
karst
region
China
is
a
typical
ecologically
fragile
area
an
important
barrier.
Against
backdrop
intensified
human
activities,
dynamics
in
have
attracted
widespread
attention.
Analyzing
changes
their
responses
activities
for
regional
development.
This
study
based
on
SPOT-VGT
NDVI
data
from
1998
2020
employs
trend
analysis,
“baseline”
determination,
multiple
regression,
residual
principal
component
analysis
investigate
characteristics
China.
Additionally,
it
quantifies
specific
impacts
various
these
changes.
research
findings
indicate
that
(1)
over
past
23
years,
interannual
variability
seasonal
differences
been
significant,
exhibiting
trend.
Spatially,
this
demonstrates
decreasing
south
north
northeast.
(2)
Over
time,
areas
where
has
improved
gradually
expand,
effectiveness
restoration
increases
with
time.
(3)
Overall,
influence
growth
landscape
(4)
socioeconomic
factors
affecting
primarily
include
economic
development
level,
population
labor
migration,
urbanization
development,
construction.
These
results
provide
scientific
basis
formulating
reasonable
environment
protection
strategies
by
humans.
Agriculture,
Journal Year:
2025,
Volume and Issue:
15(2), P. 219 - 219
Published: Jan. 20, 2025
Climate
change
and
human
activities
are
reshaping
the
structure
function
of
terrestrial
ecosystems,
particularly
in
vulnerable
regions
such
as
agro-pastoral
ecotones.
However,
extent
to
which
climate
impacts
vegetation
growth
these
areas
remains
poorly
understood,
largely
due
modifying
effects
human-induced
land
cover
changes
on
sensitivity
climatic
variations.
This
study
utilizes
satellite-derived
indices,
datasets,
data
investigate
influence
both
ecotone
northern
China
(APENC)
from
2001
2022.
The
results
reveal
that
productivity,
indicated
by
kernel
Normalized
Difference
Vegetation
Index
(kNDVI),
varies
depending
type
APENC.
Moreover,
ridge
regression
modeling
shows
pre-season
conditions
(i.e.,
precipitation
temperature)
have
a
stronger
positive
impact
growing-season
productivity
than
growing
season
temperature,
while
effect
vapor
pressure
deficit
(VPD)
is
negative.
Notably,
kNDVI
exhibits
significant
(p
<
0.05)
34.12%
region
negative
VPD
38.80%.
model
explained
89.10%
total
variation
(R2
=
0.891).
These
findings
not
only
emphasize
critical
role
historical
contemporary
shaping
but
also
provide
valuable
insights
into
how
adjust
agricultural
animal
husbandry
management
strategies
improve
regional
adaptation
based
information
previous
seasons
fragile
regions.