Agricultural Systems,
Journal Year:
2024,
Volume and Issue:
218, P. 103961 - 103961
Published: May 1, 2024
Nitrogen
(N)
and
phosphorus
(P)
imbalances
from
dairy
farming
systems
(DFSs)
lead
to
environmental
problems,
such
as
eutrophication.
This
study
aimed
quantify
nutrient
deficits
losses
DFSs
with
different
manure
management
(MMSs)
at
the
farm
level
levels
of
its
sub-systems.
We
compared
NP
balances
30
farms
four
MMSs:
applying
directly
on
forage
land,
without
treatment
(ADL),
selling
or
exporting
(SEL),
using
for
anaerobic
digestion
(ADI),
discharging
(DIS).
were
calculated
based
differences
between
in-
outflows.
Results
showed
that
N
DFS
averaged
222
kg
farm−1
yr−1
did
not
differ
MMSs.
Average
P
differed
MMSs;
highest
DIS
(83
yr−1),
lowest
SEL
(−25
yr−1).
Soil
MMSs
mostly
negative,
except
ADL
farms.
Annually,
all
in
Lembang
region
are
estimated
cause
a
loss
∼1061
tons
∼
290
P,
extract
8
soils.
Overall,
high
caused
by
into
environment.
To
reduce
imbalances,
collection
on-farm
use
must
be
improved,
excess
needs
sold
crop
The
carrying
capacity
high-input
high-output
is
determined
arable
apply
surpluses.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Feb. 6, 2024
Abstract
Water
security
is
at
stake
today.
While
climate
changes
influence
water
availability,
urbanization
and
agricultural
activities
have
led
to
increasing
demand
as
well
pollution,
limiting
safe
use.
We
conducted
a
global
assessment
of
future
clean-water
scarcity
for
2050s
by
adding
the
pollution
aspect
classical
quantity-induced
assessments.
This
was
done
>10,000
sub-basins
focusing
on
nitrogen
in
rivers
integrating
land-system,
hydrological
quality
models.
found
that
aggravates
>2000
worldwide.
The
number
with
triples
due
In
2010,
984
are
classified
scarce
when
considering
only
scarcity,
while
2517
affected
quantity
&
quality-induced
scarcity.
even
increases
3061
worst
case
scenario
2050.
aggravation
means
an
extra
40
million
km
2
basin
area
3
billion
more
people
may
potentially
face
Our
results
stress
urgent
need
address
management
policies
Sustainable
Development
Goals.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Aug. 10, 2023
Seas
are
polluted
with
macro-
(>5
mm)
and
microplastics
(<5
mm).
However,
few
studies
account
for
both
types
when
modeling
water
quality,
thus
limiting
our
understanding
of
the
origin
(e.g.,
basins)
sources
plastics.
In
this
work,
we
model
riverine
microplastic
exports
to
seas
identify
their
main
in
over
ten
thousand
basins.
We
estimate
that
rivers
export
approximately
0.5
million
tons
plastics
per
year
worldwide.
Microplastics
dominant
almost
40%
basins
Europe,
North
America
Oceania,
because
sewage
effluents.
Approximately
80%
global
population
live
river
where
macroplastics
mismanaged
solid
waste.
These
include
many
African
Asian
rivers.
10%
basins,
(as
mass)
equally
important
high
effluents
waste
production.
Our
results
could
be
useful
prioritize
reduction
policies
Environmental Science and Ecotechnology,
Journal Year:
2025,
Volume and Issue:
24, P. 100540 - 100540
Published: Feb. 11, 2025
Microplastics
have
emerged
as
pervasive
environmental
pollutants,
posing
significant
risks
to
both
terrestrial
and
aquatic
ecosystems
worldwide.
Current
remediation
strategies-including
physical,
chemical,
microbial
methods-are
inadequate
for
large-scale,
in
situ
removal
of
microplastics,
highlighting
the
urgent
need
alternative
solutions.
Phytoremediation,
an
eco-friendly
cost-effective
technology,
holds
promise
addressing
these
challenges,
though
its
application
microplastic
pollution
remains
underexplored.
Here
we
show
capacity
Eichhornia
crassipes
(water
hyacinth),
a
fast-growing,
floating
plant,
remove
microplastics
from
contaminated
water.
Our
results
that
within
48
h,
water
hyacinth
achieved
efficiencies
55.3
%,
69.1
68.8
%
0.5,
1,
2
μm
polystyrene
particles,
respectively,
with
root
adsorption
identified
primary
mechanism.
Fluorescence
microscopy
revealed
extremely
large
abundant
caps,
featuring
total
surface
area
exceeding
150,000
mm2
per
serve
principal
sites
entrapment
microplastics.
Furthermore,
unique
"vascular
ring"
structure
stem
prevents
translocation
aerial
tissues,
safeguarding
leaves
potential
downstream
applications.
This
study
offers
first
microstructural
insight
into
mechanisms
underpinning
hyacinth's
exceptional
resilience,
providing
promising
framework
developing
phytoremediation
strategies
mitigate
ecosystems.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: July 6, 2024
Abstract
Reducing
water
scarcity
requires
both
mitigation
of
the
increasing
pollution
and
adaptation
to
changing
availability
demand
resources
under
global
change.
However,
state-of-the-art
modeling
efforts
often
ignore
quality
associated
biogeochemical
processes
in
design
reduction
measures.
Here,
we
identify
cost-effective
options
for
reducing
future
by
accounting
quantity
highly
stressed
polluted
Pearl
River
Basin
China
various
socio-economic
climatic
change
scenarios
based
on
Shared
Socio-economic
Pathways
(SSPs)
Representative
Concentration
(RCPs).
Our
approach
integrates
a
nutrient
model
(MARINA-Nutrients)
with
cost-optimization
procedure,
considering
biogeochemistry
human
activities
land
spatially
explicit
way.
Results
indicate
that
is
expected
increase
factor
four
most
parts
2050
RCP8.5-SSP5
scenario.
also
show
management
could
half
analysis
serve
as
an
example
assessment
other
river
basins
around
world
inform
measures
reduce
scarcity.
Environmental Science & Technology,
Journal Year:
2023,
Volume and Issue:
57(32), P. 12019 - 12032
Published: Aug. 1, 2023
Many
rivers
are
polluted
with
macro
(>5
mm)-
and
microplastics
(<5
mm).
We
assess
plastic
pollution
in
from
crop
production
urbanization
395
Chinese
sub-basins.
develop
evaluate
an
integrated
model
(MARINA-Plastics
model,
China-1.0)
that
considers
plastics
(plastic
films
mulching
greenhouses,
diffuse
sources),
sewage
systems
(point
mismanaged
solid
waste
(diffuse
source).
Model
results
indicated
716
kton
of
entered
2015.
Macroplastics
account
for
85%
the
total
amount
(in
mass).
Around
71%
this
is
about
one-fifth
basin
area.
These
sub-basins
located
central
eastern
China,
they
densely
populated
intensive
agricultural
activities.
Agricultural
contribute
20%
to
rivers.
Moreover,
65%
urban
rural
areas.
Sewage
responsible
majority
Our
study
could
support
design
control
policies
thus
green
development
China
elsewhere.
Marine Pollution Bulletin,
Journal Year:
2023,
Volume and Issue:
198, P. 115902 - 115902
Published: Dec. 14, 2023
Worldwide,
coastal
waters
contain
pollutants
such
as
nutrients,
plastics,
and
chemicals.
Rivers
export
those
pollutants,
but
their
sources
are
not
well
studied.
Our
study
aims
to
quantify
river
exports
of
chemicals,
plastics
by
source
sub-basin
worldwide.
We
developed
a
new
MARINA-Multi
model
for
10,226
sub-basins.
The
global
modelled
seas
is
approximately
40,000
kton
nitrogen,
1,800
phosphorous,
45
microplastics,
490
macroplastics,
400
ton
triclosan
220
diclofenac.
Around
three-quarters
these
transported
the
Atlantic
Pacific
oceans.
Diffuse
contribute
95-100
%
nitrogen
(agriculture)
macroplastics
(mismanaged
waste)
in
seas.
Point
(sewage)
40-95
phosphorus
microplastics
Almost
areas
multi-pollutant
hotspots
hosting
89
population.
findings
could
support
strategies
reducing
multiple