Journal of Hydrology Regional Studies,
Год журнала:
2024,
Номер
53, С. 101753 - 101753
Опубликована: Апрель 8, 2024
The
Yangtze
River
Basin
To
accurately
quantify
the
impact
of
climate
change
and
human
activities
on
hydrological
regime,
Long
Short-Term
Memory
(LSTM)
models
for
meteorology-runoff
simulation
are
constructed
multi-year
average
monthly
flow
process.
Indicators
Hydrologic
Alteration
(IHA)
method
is
used
to
quantitatively
evaluate
processes
in
watershed.
Additionally,
grey
relational
analysis
employed
explore
key
indicators
affecting
ecological
effects
fish.
streamflow
mainstem
its
seven
tributaries
increases
as
distance
from
river
mouth
decreases.
degree
changes
various
basins
moderate
(33–66%).
Except
Jialing
River,
Wu
Poyang
Lake,
other
mainly
influenced
by
activities.
Among
them,
Yichang
most
affected
(75.43%),
while
(67.05%).
rate
land
use
development
has
reached
116.9%
over
past
20
years,
vegetation
coverage
been
increasing
at
a
linear
0.003
per
year,
Summer
rainfall
significantly
positively
correlated
with
flow,
temperature
negatively
correlated.
Three
Gorges
Dam
reduced
spawning
scale
fish
identified
"October
runoff"
indicator.
These
findings
contribute
deeper
understanding
response
watershed
water
resources
effects.
Journal of Hydrology Regional Studies,
Год журнала:
2024,
Номер
53, С. 101786 - 101786
Опубликована: Апрель 18, 2024
Yalong
River
Basin,
Southeastern
Tibetan
Plateau,
China.
The
spatio-temporal
variability
of
snow
characteristics
are
important
indicators
climate
change.
Based
on
statistical
analyses
remote
sensing
data
from
1979
to
2018,
this
study
explored
changes
and
parameters
in
the
basin.
This
region
has,
despite
rapidly
changing
ambient
conditions,
not
previously
been
investigated
at
current
level
detail,
including
multiple
snow-related
variables.
We
show
that
average
depth
(SD)
decreased
over
considered
40-year
period,
while
covered
days
showed
an
opposite,
increasing
trend.
pattern
was
attributed
a
combined
effect
gradually
earlier
arrival
first
later
last
snow,
with
overall
more
frequent
occurrence
instantaneous
cover.
Such
short-duration
events
likely
linked
regionally
precipitation
amounts
intensities
event
basis
can
outweigh
melting
effects
increased
temperatures.
results
furthermore
underscored
high
degree
heterogeneity
within
basin,
least
SD,
which
decreases
27
%
increases
73
These
findings
have
crucial
implications
for
energy
budgets
frozen
season
length
raising
questions
about
prevalence
similar
dynamics
across
plateau.
