Land,
Год журнала:
2022,
Номер
11(3), С. 362 - 362
Опубликована: Март 2, 2022
In
this
paper,
we
selected
the
northeast
region
as
a
study
area
from
perspective
of
soil
nutrient
demand,
calculated
livestock
carrying
capacity
farmland
under
three
scenarios
where
nitrogen
accounts
for
35%
(low
level),
45%
(medium
and
55%
(high
level)
fertilization,
carried
out
risk
analysis.
The
results
show
that
scale
husbandry
breeding
is
expanding
planting
industry
has
remained
basically
unchanged.
Under
scenarios,
there
were
23
regions
manure
exceeded
maximum
value
could
be
absorbed
by
in
2008
28
2019.
These
potential
are
mostly
located
Heilongjiang
province
restricted
Liaoning
Province.
On
whole,
generally
faced
with
problem
overloading,
insufficient
utilization
treatment
poses
huge
threat
to
regional
ecological
security.
Based
on
this,
adjusting
structure
breeding,
promoting
development
processing
industry,
enhancing
production
organic
fertilizer,
constructing
an
integrated
pattern
effective
ways
realize
sustainable
China.
Remote Sensing,
Год журнала:
2024,
Номер
16(16), С. 3008 - 3008
Опубликована: Авг. 16, 2024
With
global
climate
change
and
irrational
human
activities,
regional
water
resource
conflicts
are
becoming
more
pronounced.
The
availability
of
in
watersheds
can
be
indicated
by
the
yield.
Exploring
factors
that
influence
yield
is
crucial
responding
to
protecting
resource.
Previous
research
on
influencing
has
frequently
adopted
a
macro-level
perspective,
which
failed
reflect
mechanisms
changes
at
local
scale
adequately.
Therefore,
this
study
proposes
novel
framework
for
integrally
evaluating
impacts
activities
services
from
both
perspectives.
Taking
Ganzhou
City,
source
Ganjiang
River,
as
an
example,
results
show
following:
(1)
City
had
largest
1307.29
mm
2016,
lowest
was
only
375.32
2011.
spatial
distribution
pattern
mainly
affected
surface
environment,
high-value
regions
area
were
predominantly
located
urban
areas
with
flat
terrain.
(2)
At
scale,
where
contribute
than
80%
accounted
25%
area.
In
comparison,
impact
0.95%.
contribution
rate
significantly
greater
change.
(3)
simulation
four
scenarios
contributed
(>98%)
yield,
higher
(<2%).
This
puts
forward
pioneering
views
driving
forces
provides
valuable
theoretical
basis
protection
ecological
environment
construction.
Remote Sensing,
Год журнала:
2023,
Номер
15(3), С. 727 - 727
Опубликована: Янв. 26, 2023
Clarifying
the
interrelationship
between
climate
and
land
use/land
cover
(LULC)
changes
on
water
yield
in
mountainous
areas
is
very
urgent
due
to
dramatic
decrease
availability
of
areas.
In
this
study,
InVEST
model
was
used
calculate
area
Beijing–Tianjin–Hebei
region
(BTH)
from
1980
2020,
six
scenarios
were
designed
identify
contribution
rates
LULC
change
yield.
The
results
showed
that,
1980–2020,
BTH
largest
1990,
at
377.95
mm
smallest
1980,
150.49
mm.
After
2000,
interannual
a
slightly
increasing
trend,
which
significantly
lower
than
values
ranging
217.01
324.65
During
study
period,
spatial
distribution
similar
over
years,
with
high
south-central
Taihang
Mountain
(THM)
northeastern
Yanshan
(YSM).
THM
main
BTH.
annual
farmland
highest,
followed
by
forest
grassland,
while
proportion
volumetric
an
trend
2020
grassland
decreasing
that
increased
first
2000
decreased
2020.
Climate
key
factor
controlling
1980–2000,
period
2000–2020,
effect
negative,
positive
1980–2000
1980–2020.
rate
increases
THM,
Bashang
(BSR)
YSM
those
three
regions
impact
negative
also
greatly
reduced.
long
term,
revegetation
will
gradually
benefit
BTH,
including
BSR,
YSM.
These
can
provide
important
scientific
technological
reference
for
ecological
management
protection
source
sites,
as
well
planning
utilization
resources
