Hydrology Research,
Journal Year:
2022,
Volume and Issue:
unknown
Published: July 15, 2022
Identifying
and
demarcating
watershed
areas
provides
a
basis
for
designing
planning
water
resources.
In
this
study,
DEMs-based
estimates
of
characteristics
three
rivers
Bangladesh
–
Halda,
Sangu,
Chengi
were
derived
using
eight
Digital
Elevation
Models
(DEMs)
30
m,
90
225
m
resolution
in
the
Soil
Water
Assessment
Tool
(SWAT).
We
have
assessed
concerning
DEMs,
resolutions,
Area
Threshold
Values
(ATVs).
Though
elevation
data
differed,
high
correlation
values
among
DEMs
resolutions
confirm
negligible
effect
delineation.
However,
slope
delineation
vary
different
resolutions.
The
estimated
larger
Halda
lower
perimeter
all
rivers.
delineation,
area
near
mouth
flat
terrain
did
not
coincide
with
DEMs.
common
intersected
by
can
be
used
as
focal
management.
ATV
≤
40
km2
significantly
influences
sub-basin
counts
stream
network
extraction
these
areas.
size
shape
independent
ATVs,
DEM-based
process
SWAT
needs
optimum
to
represent
precisely.
Land,
Journal Year:
2021,
Volume and Issue:
10(9), P. 994 - 994
Published: Sept. 21, 2021
Land
is
a
natural
resource
that
humans
have
utilized
for
life
and
various
activities.
use/land
cover
change
(LULCC)
has
been
of
great
concern
to
many
countries
over
the
years.
Some
main
reasons
behind
LULCC
are
rapid
population
growth,
migration,
conversion
rural
urban
areas.
LULC
considerable
impact
on
land-atmosphere/climate
interactions.
Over
past
two
decades,
numerous
studies
conducted
in
investigated
areas
field
LULC.
However,
assemblage
information
missing
some
aspects.
Therefore,
provide
coherent
guidance,
literature
review
scrutinize
evaluate
particular
topical
employed.
This
research
study
collected
approximately
four
hundred
articles
five
(5)
interest,
including
(1)
definitions;
(2)
classification
systems
used
classify
globally;
(3)
direct
indirect
changes
meta-studies
associated
with
LULC;
(4)
challenges
knowledge
gaps.
The
synthesis
revealed
definitions
carried
vital
terms,
at
national,
regional,
global
scales.
Most
were
categories
land
changes.
Additionally,
analysis
showed
significant
data
consistency
quality.
gaps
highlighted
fall
ecosystem
services,
forestry,
data/image
modeling
Core
findings
exhibit
common
patterns,
discrepancies,
relationships
from
multiple
studies.
While
as
tool
similarities
among
studies,
our
results
recommend
researchers
endeavor
perform
further
promote
overall
understanding,
since
investigations
will
continue
Environmental Challenges,
Journal Year:
2021,
Volume and Issue:
6, P. 100419 - 100419
Published: Dec. 4, 2021
Modeling
land
use
cover
(LULC)
change
is
crucial
to
understand
its
spatiotemporal
trends
protect
the
resources
sustainably.
The
appraisal
of
this
study
was
model
LULC
from
1985
2050
owing
business-as-usual
scenario
(BAU)
in
Gidabo
River
Basin
(GRB)
located
Main
Ethiopian
Rift
Valley.
Different
dependent
and
independent
spatial
datasets
were
used
viz,
1985,
2003
2021
Landsat
imagery;
topography
features,
proximity
variables,
population
density
evidence
likelihood.
Since
future
projection
requires
historical
as
a
baseline,
detected
using
hybrid
image
classification
procedure
ERDAS
Imagine
nine
major
classes
identified.
Multi-Layer
Perceptron
Neural
Network
Cellular
Automata-Markov
Chain
built-in
TerrSet
software
implemented
project
2035
LULC.
depicts,
GRB
experienced
significant
dynamics
will
also
be
extended
for
coming
several
years.
Agriculture
land,
settlement
water
body
showed
gains
at
expense
forest,
shrub
grasslands
loss.
Land
changes
beyond
land's
capability
played
role
triggering
degradation.
To
minimize
these
adverse
consequences
change,
environmentally-friendly
management
measures
must
implemented.
outcome
helpful
providing
opportunity
develop
adequate
resource
conservation
strategy
plan
future.
Land,
Journal Year:
2023,
Volume and Issue:
12(10), P. 1859 - 1859
Published: Sept. 29, 2023
Change
detection
of
natural
lake
boundaries
is
one
the
important
tasks
in
remote
sensing
image
interpretation.
In
an
ordinary
fully
connected
network,
or
CNN,
signal
neurons
each
layer
can
only
be
propagated
to
upper
layer,
and
processing
samples
independent
at
moment.
However,
for
time-series
data
with
transferability,
learned
change
information
needs
recorded
utilized.
To
solve
above
problems,
we
propose
a
boundary
prediction
model
combining
U-Net
LSTM.
The
ensemble
LSTMs
helps
improve
overall
accuracy
robustness
by
capturing
spatial
temporal
nuances
data,
resulting
more
precise
predictions.
This
study
selected
Lake
Urmia
as
research
area
used
annual
panoramic
images
from
1996
2014
(Lat:
37°00′
N
38°15′
N,
Lon:
46°10′
E
44°50′
E)
obtained
Google
Earth
Professional
Edition
7.3
software
set.
uses
network
extract
multi-level
features
analyze
trend
boundaries.
LSTM
module
introduced
after
optimize
predictive
using
historical
storage
forgetting
well
current
input
data.
method
enables
automatically
fit
time
series
mine
deep
changes.
Through
experimental
verification,
model’s
changes
training
reach
89.43%.
Comparative
experiments
existing
U-Net-STN
show
that
U-Net-LSTM
this
has
higher
lower
mean
square
error.
Modeling Earth Systems and Environment,
Journal Year:
2023,
Volume and Issue:
9(3), P. 3151 - 3173
Published: Jan. 7, 2023
Abstract
Land
cover
change
has
posed
significant
concerns
to
biodiversity
and
climate
in
Bangladesh
globally.
Despite
the
country’s
designation
of
forest
regions
as
protected
areas
conserve
their
valuable
resources,
deforestation
conversion
remained
unabated.
Fashiakhali
Wildlife
Sanctuary
(FKWS),
a
area
Chittagong
Hill
Tracts,
its
surrounding
forested
impact
have
experienced
considerable
changes
over
years,
yet
are
deficient
extensive
assessment.
This
study
evaluated
land
use
(LULC)
FKWS
almost
3
decades
(1994–2021)
using
multispectral
remotely
sensed
data.
The
Landsat
images
1994,
2001,
2010,
2021
were
classified
maximum
likelihood
algorithm
analyzed
for
detection.
comparative
potential
vegetation
indices,
including
Normalized
Difference
Vegetation
Index
(NDVI)
Soil
Adjusted
(SAVI),
assessment,
relationship
between
Surface
Temperature
(LST)
NDVI
was
also
assessed.
A
loss
around
1117.17
ha
(16%)
recorded
1994
2021,
with
hugest
proportion
867.78
(12.24%)
deforested
first
period
(1994–2001).
Agricultural
declined
by
593.73
(8.37%)
within
entire
period,
despite
initial
increase
392.04
(5.53%)
2001
being
primary
driver
earlier
deforestation.
However,
recent
decade
(2010–2021),
settlement
expansion
963.90
(13.59%)
due
massive
human
migration
contributed
most
remarkable
overall
1731.51
(24.42%).
Furthermore,
provided
better
more
accurate
assessment
than
SAVI
recommended
aid
quick
evaluation
monitoring
future
impacts
agriculture,
settlement,
other
sorts
on
cover.
In
tandem
widely
acknowledged
issue
increased
temperature
change,
an
absolute
negative
correlation
found
LST,
confirming
area.
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(11), P. e21253 - e21253
Published: Oct. 24, 2023
The
identification
of
land
use/land
cover
(LULC)
changes
is
important
for
monitoring,
evaluating,
and
preserving
natural
resources.
In
the
Kurdistan
region,
utilization
remotely
sensed
data
to
assess
effectiveness
machine
learning
algorithms
(MLAs)
LULC
classification
change
detection
analysis
has
been
limited.
This
study
monitors
analyzes
in
area
from
1991
2021
using
a
quantitative
approach
with
multi-temporal
Landsat
imagery.
Five
MLAs
were
applied:
Support
Vector
Machine
(SVM),
Random
Forest
(RF),
Artificial
Neural
Network
(ANN),
K-Nearest
Neighbor
(KNN),
Extreme
Gradient
Boosting
(XGBoost).
results
showed
that
RF
algorithm
produced
most
accurate
maps
three-decade
period,
accompanied
by
high
kappa
coefficient
(0.93-0.97)
compared
SVM
(0.91-0.95),
ANN
(0.91-0.96),
KNN
(0.92-0.96),
XGBoost
(0.92-0.95)
algorithms.
Consequently,
classifier
was
implemented
categorize
all
obtainable
satellite
images.
Socioeconomic
throughout
these
transition
periods
revealed
results.
Rangeland
barren
areas
decreased
11.33
%
(-402.03
km2)
6.68
(-236.8
km2),
respectively.
transmission
increases
13.54
(480.18
3.43
(151.74
0.71
(25.22
occurred
agricultural
land,
forest,
built-up
areas,
outcomes
this
contribute
significantly
monitoring
developing
regions,
guiding
stakeholders
identify
vulnerable
better
use
planning
sustainable
environmental
protection.
Atmosphere,
Journal Year:
2021,
Volume and Issue:
12(10), P. 1353 - 1353
Published: Oct. 16, 2021
At
present,
urbanization
is
a
very
common
phenomenon
around
the
world,
especially
in
developing
countries,
and
has
significant
impact
on
land-use/land-cover
of
specific
areas,
producing
some
unwanted
effects.
Bangladesh
tightly
inhabited
country
whose
urban
population
increasing
every
day
due
to
expansion
infrastructure
industry.
This
study
explores
change
detection
dynamics
Gazipur
district,
Bangladesh,
newly
developed
industrial
hub
city
corporation,
by
using
satellite
imagery
covering
10-year
interval
over
period
from
1990
2020.
Supervised
classification
with
maximum
likelihood
classifier
was
used
gather
spatial
temporal
information
Landsat
5
(TM),
7
(ETM+)
8
(OLI/TIRS)
images.
The
Geographical
Information
System
(GIS)
methodology
also
employed
detect
changes
time.
kappa
coefficient
ranged
between
0.75
0.90.
agricultural
land
observed
be
shrinking
rapidly,
an
area
716
km2
Urbanization
increased
rapidly
this
area,
grew
more
than
500%
during
period.
urbanized
expanded
along
major
roads
such
as
Dhaka–Mymensingh
Highway
Dhaka
bypass
road.
was,
moreover,
concentrated
near
boundary
line
Dhaka,
capital
Bangladesh.
Urban
found
influenced
demographic-,
economic-,
location-
accessibility-related
factors.
Therefore,
similarly
many
concrete
development
policies
should
formulated
preserve
environment
and,
thereby,
achieve
sustainable
goal
(SDG)
11
(sustainable
cities
communities).
Water,
Journal Year:
2021,
Volume and Issue:
13(16), P. 2286 - 2286
Published: Aug. 21, 2021
Natural
landscapes
have
changed
significantly
through
anthropogenic
activities,
particularly
in
areas
that
are
severely
impacted
by
climate
change
and
population
expansion,
such
as
countries
Southeast
Asia.
It
is
essential
for
sustainable
development,
efficient
water
management
practices,
to
know
about
the
impact
of
land
use
cover
(LULC)
changes.
Geographic
information
systems
(GIS)
remote
sensing
were
used
monitoring
changes,
whereas
artificial
neural
network
cellular
automata
(ANN-CA)
modeling
using
quantum
geographic
(QGIS)
was
performed
prediction
LULC
This
study
investigated
changes
Perak
River
basin
years
2000,
2010,
2020.
The
also
provides
predictions
future
2030,
2040,
2050.
Landsat
satellite
images
utilized
monitor
For
classification
images,
maximum-likelihood
supervised
implemented.
broad
defines
four
main
classes
area,
including
(i)
waterbodies,
(ii)
agricultural
lands,
(iii)
barren
urban
(iv)
dense
forests.
outcomes
revealed
a
considerable
reduction
forests
from
year
2000
2020,
substantial
increase
lands
(up
547.39
km2)
had
occurred
while
has
seen
rapid
rise.
kappa
coefficient
assess
validity
classified
with
an
overall
0.86,
0.88,
0.91
respectively.
In
addition,
ANN-CA
simulation
results
predicted
will
expand
at
expense
other
However,
decrease
occur
area
simulated
years.
successfully
presents
highlighting
significant
pattern
basin.
could
be
helpful
administration
planning
region.
Land,
Journal Year:
2022,
Volume and Issue:
11(10), P. 1632 - 1632
Published: Sept. 22, 2022
Land
use
and
land
cover
change
(LULC)
is
known
worldwide
as
a
key
factor
of
environmental
modification
that
significantly
affects
natural
resources.
The
aim
this
study
was
to
evaluate
the
dynamics
in
Matenchose
watershed
from
years
1991,
2003,
2020,
future
prediction
changes
for
2050.
Landsat
TM
ETM+
Landsat-8
OLI
were
used
LULC
classification
2020.
A
supervised
image
sorting
method
exhausting
maximum
likelihood
system
used,
with
application
using
ERDAS
Imagine
software.
Depending
on
classified
LULC,
2050
predicted
CA-Markov
Change
Models
by
considering
different
drivers
dynamics.
1991
data
showed
predominantly
covered
grassland
(35%),
2003
2020
cultivated
(36%
52%,
respectively).
results
settlement
increased
6.36%
6.53%,
respectively,
while
forestland
decreased
63.76%
22.325,
Conversion
other
categories
most
detrimental
increase
soil
erosion,
forest
paramount
reducing
loss.
concept
population
expansion
relocation
have
led
an
agricultural
forested
areas
further
reinforced
findings
informant
interviews.
This
result
might
help
appropriate
decision
making
improve
policies
management
options.