Artificially cultivated grasslands decrease the activation of soil detachment and soil erodibility on the alpine degraded hillslopes
Soil and Tillage Research,
Год журнала:
2024,
Номер
243, С. 106176 - 106176
Опубликована: Июнь 5, 2024
Язык: Английский
Evaluation of water environment quality in a typical wetland on the Qinghai-Tibet Plateau using positive matrix factorization and self-organizing map
Journal of Cleaner Production,
Год журнала:
2024,
Номер
unknown, С. 144069 - 144069
Опубликована: Окт. 1, 2024
Язык: Английский
Artificial Grassland Revegetation Improves Soil Water Retention and Storage Capacity of the Degraded Hillside Alpine Meadow
Land Degradation and Development,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 21, 2024
ABSTRACT
The
crucial
role
of
soil
water
retention
and
storage
in
hydrology
the
cycle
is
well
established.
However,
sensitive
degraded
ecosystems
like
alpine
meadows,
effectiveness
revegetation
enhancing
these
critical
functions
remains
understudied.
This
study
investigates
effects
revegetating
severely
hillside
meadows
with
artificial
grasslands
on
capacity
Qinghai‐Tibetan
Plateau.
Soil
analyses
at
a
depth
0–20
cm
revealed
significant
improvements
properties
after
revegetation,
increases
organic
matter
content
(86.8%),
total
porosity
(11.9%),
capillary
(31.6%),
clay
(13.5%).
Both
saturated
hydraulic
conductivity
(
Ks
)
field
(FC)
increased
markedly,
by
9.7%
63.7%
upper
layer
(0–10
cm)
21.7%
69.6%
lower
(10–20
cm),
respectively.
Structural
equation
modeling
identified
bulk
density,
root
mass
FC,
porosity,
as
dominant
direct
factors
influencing
path
coefficients
−0.56,
0.30,
−0.53,
0.57,
−0.12,
respectively,
while
vegetation
cover
aboveground
biomass
were
found
to
have
indirect
influences.
These
findings
demonstrate
that
effectively
improves
regulating
key
physical
properties.
enhanced
water‐holding
has
implications
for
understanding
dynamics
grassland
establishment
improving
ecosystem
health
eco‐hydrological
vulnerable
environments.
Furthermore,
provides
valuable
insights
theoretical
basis
developing
ecological
restoration
solutions
other
regions.
Язык: Английский
Mixed-cultivation grasslands enhance runoff generation and reduce soil loss in the restoration of degraded alpine hillsides
Hydrology and earth system sciences,
Год журнала:
2024,
Номер
28(16), С. 3947 - 3961
Опубликована: Авг. 28, 2024
Abstract.
Vegetation
restoration
is
among
the
most
effective
measures
for
controlling
runoff
and
soil
erosion
resulting
from
human
activities.
Nevertheless,
few
studies
have
been
undertaken
to
analyze
effects
of
grassland
on
maintaining
local
runoff,
especially
alpine
degraded
hillsides
where
mixed-cultivation
grasslands
predominate.
In
this
research,
plots
were
established
investigate
impact
three
grasslands,
each
sowing
two
grass
species
per
plot
a
20°
slope:
Deschampsia
cespitosa
Elymus
nutans
(DE),
Poa
pratensis
L.
cv.
Qinghai
(PE),
(PD).
The
activation
volume
surface
magnitude
loss
over
3
years
(2019,
2020,
2022)
assessed.
A
severely
meadow
(SDM)
was
used
as
control.
findings
indicated
that
can
effectively
maintain
reduce
planting
age
increases.
Between
2019
2022,
values
average
depth
DE,
PE,
PD,
SDM
0.47,
0.55,
0.45,
0.27
mm,
respectively.
Despite
increase
in
favored
conservation:
net
losses
unit
area
1.4,
1.3,
1.9
times
greater
than
those
key
factors
affecting
rainfall
amount,
duration,
intensity
(60
min
intensity).
We
conclude
results
study
serve
scientific
guides
formulate
efficient
policy
decisions
planning
vegetation
hillside
meadows.
To
improve
effectiveness
restoration,
we
suggest
protective
should
be
prioritized
during
initial
stage
cultivated
grasslands.
Язык: Английский