Land,
Год журнала:
2024,
Номер
13(12), С. 2229 - 2229
Опубликована: Дек. 20, 2024
This
study
presents
an
approach
for
predicting
soil
class
probabilities
by
integrating
synthetic
composite
imagery
of
bare
with
long-term
vegetation
remote
sensing
data
and
survey
data.
The
goal
is
to
develop
detailed
maps
the
agro-innovation
center
“Orlovka-AIC”
(Samara
Region),
a
focus
on
lithological
heterogeneity.
Satellite
were
sourced
from
cloud-filtered
collection
Landsat
4–5
7
images
(April–May,
1988–2010)
8–9
(June–August,
2012–2023).
Bare
surfaces
identified
using
threshold
values
NDVI
(<0.06),
NBR2
(<0.05),
BSI
(>0.10).
Synthetic
generated
calculating
median
reflectance
across
available
spectral
bands.
Following
adoption
no-till
technology
in
2012,
average
additionally
calculated
assess
condition
agricultural
lands.
Seventy-one
sampling
points
within
classified
both
Russian
WRB
classification
systems.
Logistic
regression
was
applied
pixel-based
prediction.
model
achieved
overall
accuracy
0.85
Cohen’s
Kappa
coefficient
0.67,
demonstrating
its
reliability
distinguishing
two
main
classes:
agrochernozems
agrozems.
resulting
map
provides
robust
foundation
sustainable
land
management
practices,
including
erosion
prevention
use
optimization.
Geoderma,
Год журнала:
2024,
Номер
447, С. 116915 - 116915
Опубликована: Май 25, 2024
The
quest
for
a
global
soil
classification
system
has
been
long-standing
challenge
in
science.
There
currently
exist
two,
seemingly
disjoint,
systems,
the
USDA
Soil
Taxonomy
and
World
Reference
Base
Resources,
many
regional
national
systems.
While
both
systems
are
acknowledged
as
international,
there
remain
various
examples
of
their
shortcoming
accounting
topsoil
features,
local
applications
communication
with
established
This
calls
numerical
that
addresses
these
discrepancies
achieves
harmonization
existing
In
this
paper,
we
report
on
development
natural
layer
—
opposed
to
profile
entities,
first
step
towards
achieving
comprehensive
not
based
priori
defined
classes.
We
implemented
modelling
approach
set
predicted
key
properties
available
globally
surface
same
depth
range
0–5
cm.
was
partitioned
into
number
homogeneous
disjoint
classes
using
k-means
clustering
algorithm.
Next,
investigated
pattern
variation
clusters
association
property
map
principal
component
analysis.
A
three-component
nomenclature
is
derived
transformed
space
class-specific
centroids
account
uneven
distribution
space.
show
it
possible
build
data-based
objective
taxonomic
layers,
sets
properties,
separately,
coalesce
identifiable
or
manifest
discernible
spatial
and/or
pedological
patterns.
grouping
logical
categories
better
define
diagnostic
horizon
features
suggest
new
ones.
general-purpose
world
also
potential
assessing
change
designing
monitoring
surveys.
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2023,
Номер
unknown
Опубликована: Дек. 17, 2023
Abstract
Soil
spectroscopy
is
a
widely
used
method
for
estimating
soil
properties
that
are
important
to
environmental
and
agricultural
monitoring.
However,
bottleneck
its
more
widespread
adoption
the
need
establishing
large
reference
datasets
training
machine
learning
(ML)
models,
which
called
spectral
libraries
(SSLs).
Similarly,
prediction
capacity
of
new
samples
also
subject
number
diversity
types
conditions
represented
in
SSLs.
To
help
bridge
this
gap
enable
hundreds
stakeholders
collect
affordable
data
by
leveraging
centralized
open
resource,
Spectroscopy
Global
Good
has
created
Open
Spectral
Library
(OSSL).
In
paper,
we
describe
procedures
collecting
harmonizing
several
SSLs
incorporated
into
OSSL,
followed
exploratory
analysis
predictive
modeling.
The
results
10-fold
cross-validation
with
refitting
show
that,
general,
mid-infrared
(MIR)-based
models
significantly
accurate
than
visible
near-infrared
(VisNIR)
or
(NIR)
models.
From
independent
model
evaluation,
found
Cubist
comes
out
as
best-performing
ML
algorithm
calibration
delivery
reliable
outputs
(prediction
uncertainty
representation
flag).
Although
many
well
predicted,
total
sulfur,
extractable
sodium,
electrical
conductivity
performed
poorly
all
regions,
some
other
nutrients
physical
performing
one
two
regions
(VisNIR
Neospectra
NIR).
Hence,
use
based
solely
on
variations
limitations.
This
study
presents
discusses
resources
were
developed
from
aspects
opening
data,
current
limitations,
future
development.
With
genuinely
science
project,
hope
OSSL
becomes
driver
community
accelerate
pace
scientific
discovery
innovation.
Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Апрель 12, 2024
Abstract
As
the
importance
of
soil
health
in
supporting
European
ecosystems
and
agriculture
becomes
increasingly
critical,
effective
monitoring
is
essential
for
its
protection
restoration.
This
paper
describes
production
quality
assessment
a
data
cube
(17TB
size)
derived
from
Landsat
Analysis
Ready
Data
version
2
(ARD
V2)
dataset
tailored
monitoring,
featuring
multiple
spectral
indices,
long
time
span,
high
resolution,
analysis
readiness.
The
focus
was
on
indices
health:
Normalized
Difference
Vegetation
Index
(NDVI),
Soil
Adjusted
(SAVI),
Fraction
Absorbed
Photosynthetically
Active
Radiation
(FAPAR),
Snow
(NDSI),
Water
(NDWI),
Tillage
(NDTI),
minimum
(minNDTI),
Bare
(BSF),
Number
Seasons
(NOS)
Crop
Duration
Ratio
(CDR).
set
available
with
resolution
30~m,
bimonthly
(i.e.
one
image
per
two
months),
annual,
long-term
throughout
continental
Europe,
including
Ukraine,
UK,
Turkey,
covering
2000
to
2022.
results
assessment,
both
visual
examination
plausibility
check
ground
survey
data,
show
that
these
can
effectively
capture
environmental
processes
offer
insight
into
through
aspects
such
as
vegetation,
crop
status,
tillage
practices,
exposure
directly
or
serve
covariates
digital
mapping.
In
particular,
BSF
shows
strong
negative
correlation
-0.73
coverage
2006
2017,
suggesting
an
detection
exposure.
minNDTI
moderate
positive
0.57
Eurostat
practices
indicating
it
provides
valuable
information
intensity,
although
not
definitively.
analysis-ready
cloud-optimized,
making
suitable
applications
property
mapping
development
comprehensive
approaches
Europe.
Asian Journal of Soil Science and Plant Nutrition,
Год журнала:
2024,
Номер
10(4), С. 657 - 676
Опубликована: Дек. 17, 2024
Soil
colour
is
a
critical
indicator
of
soil
properties
and
conditions,
influencing
various
agronomic
environmental
factors.
A
total
2216
surface
samples
(0-15
cm)
were
collected
from
the
Kymore
Plateau
Satpura
Hill
zone
Madhya
Pradesh,
using
Global
Positioning
System
(GPS)
for
precise
location.
parameters
measured
in
field
Munsell
chart,
while
chemical
analysis
was
conducted
laboratory
following
standard
procedures.
Additionally,
spectra
recorded
spectroradiometer
under
conditions.
The
results
showed
that
hues
ranged
10R,
10YR,
2.5Y,
2.5YR,
5Y,
5R,
5YR,
to
7.5YR,
Values
Chroma
varied
2
7
1
8,
respectively.
Correlation
revealed
negative
correlations
between
RGB
components
organic
carbon,
with
r
values
-0.114**,
-0.071**,
-0.101*
R,
G,
B,
Polynomial
models
best
fit
relationship
value
chroma
carbon
(SOC),
equations
Y
=
0.086x²
-
0.860x
+
7.528
(R²
0.982)
0.018x²
0.249x
6.126
0.948),
linear
observed
available
phosphorus
(P),
equation
-0.873
13.92
0.922).
In
addition,
machine
learning
models,
including
PLSR,
SVM,
Random
Forest,
ANN,
XGBoost,
LightGBM,
CatBoost,
ELM
algorithms,
used
predict
parameters.
Among
these,
Forest
XGBoost
demonstrated
performance
predicting
(L*,
a*,
b*,
B),
model
accuracies
83.6%,
80.9%,
83.0%,
84.3%,
83.7%,
83.4%,
variation
depicted
maps
generated
GIS
can
also
serve
as
covariates
mapping,
offering
comprehensive
insights
into
soil's
properties.