Environmental Research Letters,
Год журнала:
2022,
Номер
17(12), С. 124024 - 124024
Опубликована: Ноя. 22, 2022
Abstract
Nowadays,
more
than
70%
of
global
freshwater
is
used
for
agriculture.
The
evaluation
the
water
footprint
crops
(CWFs)
an
important
method
to
measure
effects
crop
production
on
resource
utilization
and
environmental
pollution.
However,
little
attention
paid
impact
socioeconomic
development
differences
each
crop.
In
this
study,
green,
blue,
gray
footprints
were
quantified,
drivers
changes
in
CWFs
revealed.
It
great
significance
provide
targeted
guidance
agricultural
management
Heilongjiang,
a
province
with
largest
China.
Here,
we
show
that
total
(TWF)
increased
from
62.2
billion
m
3
101.8
,
high-value
areas
mainly
concentrated
west
south
Heilongjiang
Province.
Over
95%
grain
sown
covered
by
maize,
rice
soybean,
which
presented
greatest
TWF.
share
green
TWF
has
increased,
growth
increasingly
dependent
rainfall.
Furthermore,
our
results
highlight
effective
irrigated
quota
crop-planting
scale
maize
contribute
increase.
value-added
score
weakly
decoupling
most
municipalities,
indicating
improved
efficiency
use;
growing
slower
economy,
undesirable.
Changes
same
as
left
half
inverted
‘
U
‘Environmental
Kuznets
Curve’,
not
reached
‘inflection
point’.
More
efforts
control
while
improving
are
needed
ensure
economic
does
come
at
expense
consuming
enormous
quantities
water.
Water,
Год журнала:
2022,
Номер
14(5), С. 684 - 684
Опубликована: Фев. 22, 2022
Agricultural
water
utilization
efficiency
(AWUE)
reflects
the
rational
of
resources
in
agricultural
production.
Improving
AWUE
is
important
for
both
improving
levels
production
and
reducing
consumption
resources,
it
significant
to
explore
spatial
differences
between
different
cities
regions
various
factors
related
AWUE,
theoretically
practically.
The
totally
281
at
prefecture
level
or
above
China
2003
2018
was
evaluated
using
super-efficiency
slacks-based
measure
(SBM).
were
simulated
by
exploratory
data
analysis
(ESDA),
affecting
graphical
statistical
tool,
Geodetector.
results
this
study
are
as
follows:
(1)
mean
value
across
country
merely
0.23
when
registered
a
record
high
2018,
indicating
that
low;
(2)
showed
judging
from
ESDA,
low-low
type
principal
type,
which
distributed
mainly
North
Plain
Loess
Plateau;
(3)
technology
main
factor
AWUE.
Agricultural Water Management,
Год журнала:
2023,
Номер
290, С. 108593 - 108593
Опубликована: Ноя. 16, 2023
The
process
of
blue
water
used
in
crop
cultivation
has
both
natural
and
economic
properties
due
to
the
intervention
irrigation
facilities.
This
study
revealed
use
(CWU)
from
1999
2018
each
province
China
based
on
footprint
theory,
then
established
dependence
index
(BDI)
evaluate
agricultural
perspective
withdraw,
conducted
a
spatial
temporal
pattern
analysis.The
influencing
factors
structural
pathways
BDI
were
explored
using
least
squares
equation
modeling
(PLS-SEM)
at
national
regional
scales.
Results
indicated
that
annual
amount
for
production
exceeded
900.0
Gm³.
growth
CWU
cash
crops
grain
was
145.4
Gm³
74.4
Gm³,
respectively.BDI
all
0.281
over
period
China,
with
being
2.6
times
more
dependent
resources
than
crops.
Xinjiang,
average
0.716,
0.805,
0.620
all,
crops,
respectively,
highest
demand.
PLS-SEM
results
showed
significant
causal
relationship
between
economy
BDI,
obvious
differences
path
analysis.
Based
analysis
use,
regions
can
adjust
structure
cultivation,
optimize
allocation
soil
resources,
expand
fodder
grains
promote
steady
growth,
achieve
"win-win"
situation
ensuring
food
security
sustainable
resources.
Water,
Год журнала:
2022,
Номер
14(8), С. 1232 - 1232
Опубликована: Апрель 12, 2022
Water
footprints
can
reflect
the
sources
and
utilities
of
water
resources.
Introducing
footprint
theory
to
evaluate
irrigation
use
efficiency
agricultural
consumption
more
scientifically
accurately.
This
study
analyzes
variation
trends
blue,
green
gray
grains
in
different
regions
Heilongjiang
Province
selects
grain-sowing
area,
total
machinery
power,
grain
blue
absolute
fertilizer
amount
as
input
indexes
gross
product
output
indexes.
A
slacks-based
measure–data
envelopment
analysis
(SBM-DEA)
model
is
used
estimate
efficiencies
11
cities
Province,
analyze
corresponding
spatiotemporal
distribution
further
decompose
calculate
five
economically
underdeveloped
second-level
cities.
The
results
suggest
that
spatial
reflects
coexisting
areas
excess
scarcity.
showed
a
steady
slow
downward
trend
from
2008
2018.
reflected
significant
differences
with
pattern
high
values
southwest
low
northeast;
these
have
gradually
narrowed.
average
was
0.821
Harbin,
Qiqihar
Jixi
were
at
forefront
province.
Jiamusi,
Hegang,
Shuangyashan,
Yichun,
Mudanjiang
are
below-provincial-average
efficiencies.
mainly
depends
on
pure
technical
efficiency.
In
future,
inputs
should
be
improved
basis
optimizing
production
layout,
focusing
improving
research
obtained
herein
provide
theoretical
for
management
Province.
International Journal of Environmental Research and Public Health,
Год журнала:
2022,
Номер
19(11), С. 6793 - 6793
Опубликована: Июнь 1, 2022
Understanding
the
potential
association
between
urbanization
process
and
regional
water
shortage/pollution
is
conducive
to
promoting
intensive
utilization
of
local
resources.
In
this
study,
footprint
model
was
used
estimate
status
in
terms
both
quantity
(virtual
(VWF))
quality
(grey
(GWF))
Beijing–Tianjin–Hebei
region
(China)
during
2004–2017.
Their
coordination
relationship
with
represented
by
gross
domestic
product
(GDP),
population
(POP),
built-up
area
(BA)
examined
using
Tapio
decoupling
model.
The
results
showed
that
from
2004
2017,
(1)
VWF
Beijing
Tianjin
non-significant
decreasing
trends,
reductions
1.08
×
109
1.56
m3,
respectively,
while
Hebei
a
significant
increasing
trend,
an
increase
5.74
m3.
This
indicated
gradually
demand
Tianjin.
all
three
regions,
agricultural
sector
accounted
for
relatively
high
proportion
compared
other
sectors.
(2)
GWF
Beijing,
Tianjin,
declining
2.19
1010,
2.32
1.66
1011
indicating
considerable
improvement.
contributed
as
main
component
agriculture
contributor
Hebei.
major
transitioned
(before
2015)
sector.
(3)
We
found
good
GDP
their
economic
development
no
longer
overly
dependent
on
consumption.
However,
expansion
urban
or
would
bring
about
accelerated
depletion
(4)
provinces
GDP,
POP,
BA
most
years,
implying
strongly
caused
pollution
sum,
policymakers
should
focus
improving
irrigation
efficiency
residents’
awareness
conservation,
so
achieve
sustainable
resource
management
BTH
region.
Environmental Research Letters,
Год журнала:
2022,
Номер
17(12), С. 124024 - 124024
Опубликована: Ноя. 22, 2022
Abstract
Nowadays,
more
than
70%
of
global
freshwater
is
used
for
agriculture.
The
evaluation
the
water
footprint
crops
(CWFs)
an
important
method
to
measure
effects
crop
production
on
resource
utilization
and
environmental
pollution.
However,
little
attention
paid
impact
socioeconomic
development
differences
each
crop.
In
this
study,
green,
blue,
gray
footprints
were
quantified,
drivers
changes
in
CWFs
revealed.
It
great
significance
provide
targeted
guidance
agricultural
management
Heilongjiang,
a
province
with
largest
China.
Here,
we
show
that
total
(TWF)
increased
from
62.2
billion
m
3
101.8
,
high-value
areas
mainly
concentrated
west
south
Heilongjiang
Province.
Over
95%
grain
sown
covered
by
maize,
rice
soybean,
which
presented
greatest
TWF.
share
green
TWF
has
increased,
growth
increasingly
dependent
rainfall.
Furthermore,
our
results
highlight
effective
irrigated
quota
crop-planting
scale
maize
contribute
increase.
value-added
score
weakly
decoupling
most
municipalities,
indicating
improved
efficiency
use;
growing
slower
economy,
undesirable.
Changes
same
as
left
half
inverted
‘
U
‘Environmental
Kuznets
Curve’,
not
reached
‘inflection
point’.
More
efforts
control
while
improving
are
needed
ensure
economic
does
come
at
expense
consuming
enormous
quantities
water.
