Sustainability,
Год журнала:
2022,
Номер
14(21), С. 13755 - 13755
Опубликована: Окт. 24, 2022
Compared
with
the
attention
of
large
reservoirs,
water
quality
small
reservoirs
also
needs
attention.
In
recent
years,
problem
reservoir
has
become
increasingly
serious.
How
to
predict
may
be
an
urgent
solved.
Taking
Yangmeiling
as
example,
this
paper
collects
hydrological
and
data
in
last
ten
analyzes
relationship
between
data,
uses
a
machine
learning
method
simulate
data.
The
results
show
that
can
simply
linked
predicted
through
high
simulation
accuracy.
This
popularized
prediction
reservoirs;
it
does
not
provide
theoretical
basis
for
management
reservoirs.
Geomatics Natural Hazards and Risk,
Год журнала:
2024,
Номер
15(1)
Опубликована: Авг. 3, 2024
A
significant
proportion
of
Arghandab
Catchment
in
Kandahar
Province,
Afghanistan
has
been
under
potential
degradation
threat
due
to
soil
erosion.
This
study
assessed
the
extent
erosion
and
estimated
sediment
delivery
ratio
(SDR)
catchment
by
employing
Revised
Universal
Soil
Loss
Equation
(RUSLE),
utilizing
Geographic
Information
System
(GIS)
Remote
Sensing
(RS)
techniques.
Data,
related
rainfall
erosivity
(R
factor),
erodibility
(K
slope
length
steepness
(LS
cover
management
(C
support
practices
(P
employed
for
RUSLE
model
were
processed
using
GIS
tools
R-Studio
software.
Average
factor
values
studied
area
ranged
from
51.8
124
MJ
mm
ha−1
h−1
year−1,
0.03725
t
ha
h
MJ−1
mm−1,
9.2,
0.445,
0.75
R,
K,
LS,
C,
P
factors,
respectively.
The
results
revealed
that
average
annual
loss
was
6.81
yr−1,
ranging
0.002
yr−1
flat
areas
up
94.7
hilly
mountainous
regions.
classes
slight,
moderate,
high,
very
severe,
severe
covered
20.1%
(263,542.3
ha),
12.2%
(160,286.5
22.8%
(298,740.6
20.3%
(265,546.8
17.6%
(231,224.4
ha)
6.9%
(90,879.9
computed
SDR
Dahla
Reservoir
located
found
be
between
24.2%
36%.
LS
identified
as
most
crucial
variable
associated
with
findings
this
can
applied
when
designing
effective
conservation
strategies
water
management.
Earth Surface Processes and Landforms,
Год журнала:
2024,
Номер
49(14), С. 4663 - 4678
Опубликована: Сен. 27, 2024
Abstract
The
variations
in
soil
erosion
significantly
impact
regional
ecological
security.
Under
rapid
urbanisation,
extensive
restoration
and
climate
change,
development
the
red
region
of
southern
China
is
ambiguous.
Therefore,
this
study
investigated
current
(1980s–2020)
future
(2050)
characteristics
a
typical
control
catchment
(Changting
section
catchment)
by
using
Cellular
Automata
Markov
model
CMIP6
data
to
predict
scenarios
Revised
Universal
Soil
Loss
Equation
estimate
erosion.
results
showed
significant
changes
vegetation
coverage
major
land
uses
from
1980s
2020,
which
was
mainly
caused
continuous
water
conservation
(SWC).
use
subtypes
that
were
obtained
reclassifying
based
on
threshold
cover
control,
reflect
transformation
those
with
poor
SWC
effectiveness
great
effectiveness.
estimated
intensity
continued
decrease
contribution
use/land
(LULC)
impacts
ranged
74%–195%.
However,
predictions
indicated
LULC
may
be
stable
after
2020;
thus,
changed
little
when
almost
unchanged
2050.
change
scenarios,
increase
111%–121%,
precipitation
63%–66%.
driving
factor
shift
2020.
future,
potential
for
reducing
limited,
more
engineering
measures
should
applied
address
risk
changes.
This
provides
prospects
China.
Journal of Hydrology Regional Studies,
Год журнала:
2023,
Номер
51, С. 101614 - 101614
Опубликована: Дек. 16, 2023
Southern
Gansu
Plateau
(SGP),
located
in
the
northeastern
region
of
Qinghai-Tibet
Plateau,
is
a
representative
alpine-cold
water
source
area
for
China's
large
rivers,
such
as
Yellow
River
and
Yangtze
River.
Identifying
contributions
dominant
factors
to
regional
soil
erosion
rate
(A)
important
understanding
environmental
processes
benefits
conservation,
although
related
studies
have
seldom
been
conducted
regions
SGP.
Accordingly,
main
objectives
this
study
are
(1)
determine
spatiotemporal
dynamics
its
driving
SGP
area;
(2)
quantify
relationship
between
influential
erosion;
(3)
separate
above
variations
on
The
multiyear
average
A
was
calculated
24.18
t·hm−2·a−1,
corresponding
an
overall
low
intensity
erosion.
various
time-varying
factors,
rainfall,
vegetation
cover,
conservation
practices,
reduction
were
−20.01%,
81.07%,
21.95%,
respectively,
indicating
that
improvement
land
surface
ecology
dominated
decrease
under
background
climate
warming.
findings
expected
contribute
river
regions.
Forests,
Год журнала:
2023,
Номер
14(2), С. 213 - 213
Опубликована: Янв. 22, 2023
Research
on
forest
ecosystem
service
(ES)
assessments
is
currently
a
topic
of
much
interest
in
ecology
combined
with
geography.
Forests
are
the
mainstay
terrestrial
ecosystems
and
provide
wide
range
welfare
supports
for
humans.
Pinus
massoniana
(PM)
Lamb.
major
silvicultural
timber
species
southern
China
plays
an
important
role
meeting
domestic
demand
as
well
providing
ESs.
The
assessment
ESs
PM
plantation
forests
beneficial
their
sustainable
management.
In
this
study,
we
used
woody
biomass
method,
InVEST
water
content
model
USLE,
generalized
soil
loss
equation
to
assess
values
four
Ess,
including
wood
supply,
carbon
sequestration
oxygen
release,
conservation,
plantations
Guangxi
Paiyangshan
Forest
Farm,
which
national
seed
base.
A
spectral
clustering
method
was
identify
clusters
(i.e.,
partitions)
case
study
area,
certain
strategies
were
provided
different
partitions
form
management
strategy
ecosystems.
This
showed
that
value
each
ES
per
hectare
northern
tropical
pine
plantation,
ranked
from
largest
smallest,
conservation;
release;
supply;
supply
addition
release
increasing
age
plantation.
Based
characteristics
within
clusters,
area
divided
into
ecological
nourishment
restoration
areas,
can
focus
more
nourishment.
