Quantification of the Loess Plateau's soil hydrodynamics in relation to bulk density
Soil Science Society of America Journal,
Journal Year:
2025,
Volume and Issue:
89(2)
Published: March 1, 2025
Abstract
Investigating
the
effects
of
varying
degrees
soil
compaction
on
its
hydrodynamic
properties
is
still
a
vital
step
in
optimizing
water
utilization.
Furthermore,
parameters
such
as
saturated
hydraulic
conductivity
(Ks)
and
retention
characteristics
(SWRC)
are
essential
data
for
solute
transport
calculations.
However,
it
takes
lot
time
money
to
get
direct
measurements
properties.
The
purpose
this
study
was
measure
how
Loess
Plateau's
SWRC,
Ks,
pores
were
affected
by
five
different
bulk
density
(BD),
quantify
interactions
between
BD,
organic
carbon
(SOC),
particle
size
distribution
(PSD)
using
pedotransfer
function
(PTF).
Hydrodynamic
predicted
multiple
linear
regression
(MLR),
best
models
chosen
statistical
standards
compared
with
Rosetta3
based
predictors
%
sand,
silt,
clay
(SSC)
SSC+BD.
results
showed
that
increasing
BD
from
1.00
1.40
g
cm
−3
led
significant
reductions
content
(SSAT),
quickly
draining
(QDP),
Ks.
Enhances
SOC
micropores
under
low
suffers
pore
collapse.
MLR
model‐based
(BD+SOC)
parameters,
demonstrated
“BD+SOC”
combination.
MLR‐BD+SOC
model
outperformed
(root
mean
square
error
[RMSE]:
0.001–0.005;
R
2
:
0.91–0.98)
models.
Rosetta3‐SSC+BD
improved
predictions
low‐SOC
soils
but
underperformed
SOC‐rich
soils.
These
findings
emphasize
integrating
PTF
accurate
modeling,
particularly
erosion‐prone,
heterogeneous
landscapes.
Language: Английский
Use of environmental indicators to assess the state of forest ecosystems
Ukrainian Journal of Forest and Wood Science,
Journal Year:
2024,
Volume and Issue:
15(3), P. 25 - 42
Published: July 26, 2024
The
purpose
of
the
study
was
to
comprehensively
analyse
effectiveness
environmental
indicators
in
determining
state
forest
ecosystems
and
their
ability
reflect
changes
ecological
balance.
During
study,
influence
anthropogenic
factors
on
biomass,
soil
acidity,
species
diversity
Sumy
Oblast
Ukraine
evaluated.
Field
studies
were
conducted
determine
biomass
plants
animals
natural
areas,
followed
by
statistical
analysis
data.
degree
degradation
areas
as
a
result
human
activity
determined
consequences
these
for
systems
results
showed
that
anthropogenically
modified
have
reduced
(100
t/ha)
(20
plant
species),
increased
acidity
(pH
6.5-7)
high
concentrations
nitrates
phosphates,
compared
mixed
forests,
where
reaches
200
t/ha,
–
50
flora,
varies
from
moderately
acidic
neutral
5.5-6).
These
data
confirmed
negative
impact
ecosystems,
particular
acidity.
It
established
allow
forming
comprehensive
picture
which
is
necessary
making
informed
management
decisions
aimed
at
preserving
restoring
effective
resources.
obtained
demonstrated
serious
problems
ecosystems.
A
decrease
diversity,
an
increase
zones
indicate
need
urgent
implementation
measures
conservation
restoration
forests.
will
be
useful
context
long-term
monitoring
would
more
detailed
investigation
dynamics
Language: Английский