Exploring the impact process and mechanism of geological hazards on land use from the perspective of debris flow gullies
Frontiers in Earth Science,
Год журнала:
2025,
Номер
13
Опубликована: Май 15, 2025
Geological
disasters
like
debris
flows
often
profoundly
affect
land
use,
causing
changes
in
the
surrounding
environment
and
influencing
decisions
of
local
farmers.
This
study
selected
122
flow
gullies
Anning
River
Basin
as
research
units
developed
a
novel
analytical
approach
to
quantify
use
responses
flows.
Key
indicators
derived
from
this
methodology
were
combined
with
ordinary
least
squares
(OLS)
regression
analysis
identify
critical
factors
governing
spatial
distribution
patterns
use.
Building
on
these
analyses,
further
elucidated
mutual
interaction
mechanisms
between
dynamics.
The
findings
indicate
that
1)
cultivated
rural
construction
are
predominantly
concentrated
piedmont
areas,
accounting
for
50.74%
60.04%
total
area,
respectively.
2)
concentration
index
values
various
types
ranked
descending
order
follows:
water
bodies,
forested
barren
land,
agricultural
grasslands,
built-up
areas.
3)
There
is
marked
clustering
relation
altitude,
proximity
roads,
population
distribution,
Moran’s
I
indices
0.975,
0.957,
0.949,
respectively,
indicating
strong
autocorrelation.
impact
altitude
most
pronounced
characterized
by
medium-frequency
flows,
significant
proportion
(50.00%)
have
positive
coefficients.
Conversely,
aspect
exerts
substantial
influence
low
frequencies,
majority
(59.09%)
results
underscore
slope
gradient
determinants
within
gullies.
offer
empirical
evidence
support
development
policies
aim
reduce
risk
occurrences
while
promoting
sustainable
management
practices.
Язык: Английский
Landscape Character Identification and Zoning Management in Disaster-Prone Mountainous Areas: A Case Study of Mentougou District, Beijing
Land,
Год журнала:
2024,
Номер
13(12), С. 2191 - 2191
Опубликована: Дек. 15, 2024
Disaster-prone
mountainous
regions
face
complex
human–environment
conflicts
resulting
from
the
combined
influences
of
natural
disaster
threats,
ecosystem
conservation,
and
resource
development.
This
study
takes
Mentougou
District
as
research
area,
leveraging
landscape
character
identification
methods
to
develop
a
multidimensional
evaluation
framework
integrating
safety,
ecology,
aspects,
providing
foundation
for
zoning
management
decisions.
Four
characteristic
elements—elevation,
geomorphology,
vegetation
type,
land
cover
type—were
extracted
during
phase.
Two-step
clustering
eCognition
multi-scale
segmentation
were
used
identify
12
types
(LCTs)
delineate
Landscape
Character
Areas
(LCAs).
The
MaxEnt
model
was
applied
phase
assess
debris
flow
susceptibility.
At
same
time,
AHP
ArcGIS
spatial
overlay
evaluate
ecological
resilience
quality.
three-dimensional
results
LCAs
clustered
manually
interpreted,
in
four
levels
protection
development
areas.
Management
strategies
proposed
three
perspectives:
prevention,
method
provides
pathway
balance
disaster-prone
regions,
promoting
scientific
sustainable
vast
Язык: Английский
An investigation into the zoning of ecosystem sensitivity control areas in Mentougou District (Beijing, China)
PLoS ONE,
Год журнала:
2024,
Номер
19(12), С. e0316025 - e0316025
Опубликована: Дек. 19, 2024
To
achieve
a
more
precise
delineation
of
ecosystem
sensitivity
control
areas,
this
study
examines
the
Mentougou
District
in
Beijing
and
introduces
Ecosystem
Sensitivity
Control
Area
Classification
Method
(ESCACM).
This
novel
approach
combines
single-factor
analysis,
multi-factor
comprehensive
assessments,
strategies
for
zoning
based
on
various
ecological
scenarios.
The
categorizes
region
into
three
specific
zones:
first-level
management
second-level
non-management
areas.
key
findings
are:
(1)
By
systematically
categorizing
relevant
factors,
method
creates
independent,
non-overlapping
groups,
effectively
reducing
dimensionality.
(2)
After
conducting
assessment
using
multiple
scientifically
quantified
values
are
assigned
to
each
zone.
These
processed
through
mathematical
overlay
algorithms,
which
generate
composite
results
with
different
levels.
places
strong
emphasis
quantitative
thereby
enhancing
objectivity
precision
results.
(3)
use
multi-scenario
enhances
adaptability
flexibility
process.
significantly
improves
accuracy
scientific
credibility
zoning,
providing
versatile
meet
varied
needs
regions.
model
serves
as
valuable
framework
promoting
protection
efforts
support
sustainable
urban
development
objectives.
Язык: Английский