Land,
Journal Year:
2024,
Volume and Issue:
13(11), P. 1798 - 1798
Published: Oct. 31, 2024
The
strategic
development
of
selenium-enriched
soil
cultivation
is
essential
for
effective
agricultural
land
management.
This
research
explores
the
sustainable
utilization
selenium-rich
soils
in
Qiongzhong
County,
Hainan
Island.
An
extensive
evaluation
was
conducted
on
7266
surface
samples,
assessing
selenium
concentrations,
nutrient
levels,
heavy
metals,
pH
values,
and
organic
matter
(SOM).
In
addition,
analyses
70
samples
organochlorine
compounds
PAHs
were
performed.
results
indicated
average
content
0.46
mg/kg,
with
55.2%
surpassing
enrichment
threshold
0.4
mg/kg.
According
to
GB15618-2018
standards,
127
(1.75%)
showed
medium
or
high
chromium-associated
risks.
No
contamination
from
found,
including
16
priority-controlled
an
concentration
30.3
µg/kg,
confirming
soil’s
quality.
correlation
factor
analysis
identified
as
main
influencing
accumulation,
presenting
minimal
environmental
Consequently,
three
categories
defined:
selenium-rich,
pollution-free,
high-nutrient
soil.
Recommendations
based
characteristics
existing
practices
made
vegetables,
rubber,
nuts.
study
lays
a
foundation
management
soils,
providing
insights
further
decision-making
optimize
these
resources,
thus
promoting
protection
sustainability.
Environmental Technology & Innovation,
Journal Year:
2024,
Volume and Issue:
35, P. 103703 - 103703
Published: June 7, 2024
Rapid
economic
development
has
led
to
an
alarming
increase
in
soil
pollution
by
potentially
toxic
elements
(PTEs),
significantly
reducing
productivity
and
posing
long-term
threats
sustainable
agriculture
human
well-being.
Over
the
past
two
decades,
it
been
observed
that
PTEs
severely
impacted
biodiversity,
with
damage
rates
of
94.7
%
plants,
77.4
humans,
68.4
animals.
In
response,
various
remediation
technologies
have
developed,
considering
factors
such
as
practical
applicability,
treatment
duration,
ecological
safety.
Microbial
shown
a
removal
efficiency
ranging
from
32.0
95.2
%,
while
multi-technology
combined
approaches
demonstrated
broader
efficacy,
18.7
381
%.
However,
selection
suitable
technology
must
also
consider
cost
ensure
efficient
contaminant
removal.
This
review
provides
comprehensive
overview
local
international
status,
sources,
hazards
associated
PTEs,
well
environmental
influencing
their
migration.
It
examines
detoxification
mechanisms
plants
microbial
evaluates
strengths
weaknesses
physical,
chemical,
biological,
methods.
Furthermore,
underscores
requirements
opportunities
for
developing
effective
techniques.
The
insights
presented
here
are
crucial
agronomists
strategies
interdisciplinary
research
into
integrated
emission
sources
pathogenesis,
thereby
enhancing
efforts
safeguard
Earth's
environment.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 29, 2025
The
geochemical
baseline
is
an
essential
reference
for
distinguishing
natural
and
anthropogenic
environmental
impacts.
It
of
great
significance
evaluating
the
changes
in
chemical
substance
(element)
content
concentration
before
after
human
development,
as
well
evolution
quality.
Using
background
values
such
"Background
Values
Chinese
Soil
Elements"
expanding
research
scale
can
easily
lead
to
"over
protection"
or
"under
when
guiding
pollution
control
governance.
article
takes
Wushan
County,
Chongqing
City,
Yangtze
River
Basin,
example
collect
100
surface
soils
construct
a
heavy
metal
baseline.
Analysis
shows
that
average
As,
Hg,
Co,
Cd,
Pb,
Cu,
Ni,
Zn,
Mn
soil
study
area
are
14.06,
0.09,
19.39,
0.99,
31.01,
37.08,
47.77,
121.10,
960.20
mg/kg,
respectively;
ground
accumulation
index
indicates
metals
mainly
pollution-free
lightly
polluted,
but
have
certain
proportion
moderate
(43,
7,
2,
3,
1
point,
respectively).
Hg
Ni
each
medium
strong
level
site,
while
Cd
has
6
sites,
4
extremely
5
sites.
Based
on
cumulative
frequency
curve
method,
were
obtained
0.06,
12.69,
16.47,
0.22,
30.15,
24.61,
34.54,
104.40
628.32
respectively.
constructed
determines
evaluation
criteria
small-scale
spatial
areas,
which
scientifically
accurately
identify
current
status
region.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Sept. 20, 2024
The
establishment
of
soil
geochemical
baseline
and
heavy
metal
pollution
assessment
in
the
Qinghai-Tibet
Plateau
is
great
significance
for
guiding
environmental
management
high-cold
high-altitude
regions.
A
total
126
topsoil
samples
(0-20
cm)
were
collected
contents
Cu,
Pb,
Zn,
Ni,
Cr,
Cd,
As
Hg
determined
Sabaochaqu
basin
Tuotuo
River,
source
Yangtze
Tibetan
Plateau.
values
8
metals
by
mathematical
statistics,
iterative
2times
standard
deviation
method,
cumulative
frequency
reference
element
standardization,
study
area
was
assessed
enrichment
factor
method
index
method.
results
showed
that
average
As,
Hg,
Pb
Zn
31.84,
0.29,
66.07,
17.35,
0.021,
27.86,
49.35
88.56
mg/kg,
respectively.
Baseline
22.24,
0.217,
64.16,
15.69,
0.0191,
26.46,
34.91,
68.62
There
a
difference
between
value
Xizang
background
value,
especially
Cd
2.68
times
its
value.
evaluation
based
on
slightly
enriched,
overall
status
light
pollution,
measures
should
be
taken
to
control
manage
them.
research
can
provide
region
also
theoretical
basis
construction
similar
