Monitoring deforestation, forest health, and environmental criticality in a protected area periphery using Geospatial Techniques
PeerJ,
Год журнала:
2024,
Номер
12, С. e17714 - e17714
Опубликована: Июль 18, 2024
Protected
areas
in
South
Asia
face
significant
challenges
due
to
human
disturbance
and
deforestation.
The
ongoing
debate
surrounds
the
recent
surge
illegal
encroachment
of
forest
buffer
zones
Musali
divisional
secretariat
division
(DSD),
which
has
led
a
loss
cover
over
past
three
decades.
In
this
context,
detecting
changes
cover,
assessing
health,
evaluating
environmental
quality
are
crucial
for
sustainable
management.
As
such,
our
efforts
focused
on
dynamics,
conditions
DSD
from
1988
2022.
We
employed
standardized
image
processing
techniques,
utilizing
Landsat-5
(TM)
Landsat-8
(OLI)
images.
However,
area
shown
minimal
changes,
health
have
illustrated
considerable
spatial-temporal
variations
34
years.
results
indicated
that
8.5
km
2
(1.9%)
been
converted
other
land
use
classes.
Overall,
Normalized
Difference
Vegetation
Index
(NDVI)
declined
time,
while
Land
Surface
Temperature
(LST)
exhibits
an
increasing
trend.
regression
demonstrated
robust
inverse
relationship
between
LST
NDVI.
declining
vegetation
contribute
increase
criticality.
derived
maps
indices
will
be
beneficial
authorities
identifying
highly
sensitive
locations.
Additionally,
they
could
enable
planners
develop
management
strategies.
Язык: Английский
Changes in vegetation ecosystem carbon sinks and their response to drought in the karst concentration distribution area of Asia
Ecological Informatics,
Год журнала:
2024,
Номер
unknown, С. 102907 - 102907
Опубликована: Ноя. 1, 2024
Язык: Английский
Analysis of Spatiotemporal Characteristics of Drought in Transboundary Watersheds of Northeast Asia Based on Comprehensive Indices
Water,
Год журнала:
2025,
Номер
17(3), С. 382 - 382
Опубликована: Янв. 30, 2025
Drought,
as
an
extreme
climatic
event,
is
considered
one
of
the
most
severe
natural
disasters
worldwide.
In
Northeast
Asia,
frequency
and
intensity
drought
have
been
exacerbated
by
climate
change,
causing
significant
negative
impacts
on
region’s
socioeconomic
conditions
agricultural
production.
This
study
analyzed
spatiotemporal
evolution
trends
in
transboundary
river
basins
Asia
from
1990
to
2020,
using
meteorological
station
data
remote
sensing
data.
The
Standardized
Precipitation
Evapotranspiration
Index
(SPEI)
Vegetation
Condition
(VCI)
were
employed
assess
characteristics,
a
comprehensive
analysis
SPEI
VCI
indices
was
conducted
evaluate
severity
under
different
land
cover
types.
results
indicate
that
(1)
past
two
decades,
both
shown
increasing
trend
basin,
with
moderate
mild
droughts
being
predominant.
(2)
High
mainly
occur
forest
areas,
accounting
for
17.91%
10.76%,
respectively,
followed
farmland.
Язык: Английский
Integrating Cloud-Based Geospatial Analysis for Understanding Spatio-Temporal Drought Dynamics and Microclimate Variability in Rajasthan: Implications for Urban Development Planning
Journal of the Indian Society of Remote Sensing,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 14, 2025
Язык: Английский
Temporal relationships between agricultural and meteorological drought over the Oum Er Rbia River, Morrocco
Big Earth Data,
Год журнала:
2025,
Номер
unknown, С. 1 - 36
Опубликована: Март 23, 2025
This
study
examines
the
temporal
relationships
between
meteorological
and
agricultural
drought
indices
using
lagged
linear
correlations,
Mann–Kendall
trend
test,
machine
learning
(random
forest
–
RF
deep
neural
network
DNN).
On
a
seasonal
annual
scale,
results
revealed
that
resonance
of
is
strongly
synchronized
with
variability
drought.
At
monthly
reflected
by
vegetation
condition
index
soil
moisture
(SMCI)
has
an
obvious
latency
time
at
least
one
month
statistically
significant
up
to
three
months.
For
both
indices,
their
statistical
are
highly
variable,
depending
on
season,
scale
type
index.
The
correlations
SMCI
Palmer
severity
were
most
stable.
They
ranged
from
0.7
0.86,
whereas
precipitation
conditions
varied
0.5
0.16
in
first
last
months
respectively.
Despite
this
high
correlation
variability,
analysis
historical
trends
demonstrated
existence
similarities
very
negative
spatiotemporal
changes
indices.
Similarly,
models
highlighted
importance
positive
relative
contribution
joint
occurrence
yields.
Overall,
model
achieved
optimal
performance
relatively
small
number
predictors,
DNN
was
more
dependent
features
used.
Язык: Английский
Application of A Novel Vegetation Condition Index using MODIS EVI for Structuring Crop Index Insurance Under a Smallholder System
Environmental and Sustainability Indicators,
Год журнала:
2025,
Номер
unknown, С. 100696 - 100696
Опубликована: Апрель 1, 2025
Язык: Английский
An application of the remote sensing derived indices for drought monitoring in a dry zone district, in tropical island
Ecological Indicators,
Год журнала:
2024,
Номер
167, С. 112681 - 112681
Опубликована: Окт. 1, 2024
Язык: Английский
Combined Effects of Forest Conservation and Population Resettlement on the Ecological Restoration of Qilian Mountain National Park
Land,
Год журнала:
2024,
Номер
13(12), С. 1983 - 1983
Опубликована: Ноя. 21, 2024
The
combined
pressures
of
climate
change
and
human
activities
have
exacerbated
ecological
risks
in
fragile
sensitive
areas.
Assessing
the
restoration
status
key
nature
reserves
developing
a
new
conservation
development
framework
are
fundamental
for
achieving
civilization
enhancing
sustainability.
As
an
security
barrier
northwestern
alpine
region,
Qilian
Mountain
National
Park
(QMNP),
is
great
significance
maintaining
sustainable
environment
western
China.
By
measuring
changes
land
use
monitoring
vegetation
indicator
trends
QMNP,
we
constructed
Regional
Ecological
Resilience
Indicator
(RERI)
proposed
framework.
results
show
that:
(1)
QMNP
was
remarkable,
with
total
721.76
km2
non-ecological
converted
to
land,
representing
1.44%
increase.
Forest
covered
110
km2,
primarily
made
up
previously
unused
from
2000
2020.
(2)
average
NDVI
value
increased
by
0.025.
Regions
showing
productivity
growth
(NPP)
accounted
51.82%
area
four
typical
eco-migration
zones
reduced
building
profile
47.72%
between
2015
2019.
distribution
high
Composite
Vegetation
Index
(CFI)
values
overlapped
concentrated
forest
areas,
revealing
two
main
models:
population
relocation.
(3)
RERI
calculations
divided
park
into
three
zones,
Priority
Conservation
Area
(PCA),
Optimization
Enhancement
(OEA),
Concerted
Development
(CDA),
leading
proposal
characterized
“three
horizontal
axes,
one
vertical
axis”.
Our
findings
contribute
strengthening
China;
they
offer
insights
long-term,
stable
improvement
other
critical
protected
systems
globally.
Язык: Английский
Climate Change and Human Activities: Their Roles in Shaping Land Productivity in Northern Nigeria
Land Degradation and Development,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 19, 2024
ABSTRACT
The
Northern
Nigeria
Region
(NNR)
has
historically
suffered
from
land
productivity
changes
due
to
anthropogenic
and
climatic
factors.
development
of
methodologies
that
can
evaluate
these
at
the
pixel
level
spatialize
effects
driving
factors
is
a
key
requisite
provide
targeted
solutions
for
degradation,
in
country
with
population
growth
desert
advancement.
In
this
study,
we
applied
MODIS
series
data
assess
NNR
(2001–2021)
using
NDVI
trend
analysis.
We
also
used
correlation
RESTREND
analyses
discriminate
between
climate
human
map
their
effects.
results
indicated
approximately
30.7%
showed
whereas
27.1%
an
increase
productivity.
There
was
clear
spatial
pattern,
increasing
closer
northern
boundary
Niger,
decreasing
concentrated
central
southern
parts
NNR.
Anthropogenic
had
greater
impact
on
degradation
improvement,
compared
rainfall.
forcing
contributed
most
northeastern
part
Land
mainly
associated
overgrazing
unsustainable
agricultural
practices,
which
lead
grasslands
crops.
On
other
hand,
influence
improvements
involves
abandonment
recovery
programs.
These
be
planning
initiatives
better
integrate
food
production
environmental
protection
NNR,
contributing
policies
achieving
neutrality
as
soon
possible.
Язык: Английский