A research on a hydrochemical characteristics of a typical karst basin and its response for world heritage protection: a case study of the Huanghou underground river basin in China
Abstract
Hydrochemical
characteristics
in
karst
area
is
an
important
content
of
basic
research
on
water
environment.
However,
there
are
few
researches
the
response
its
hydrochemical
to
conservation
mechanism
protected
areas,
so
Huanghou
Underground
River
Basin,
a
typical
basin
upstream
Libo
Karst
World
Natural
Heritage
Site
China
was
chosen
as
study
and
82
samples
were
collected
analysed.
The
results
show
that:
(1)
waters
whole
weakly
alkaline,
spatial
variability
ions
significant,
with
obvious
fluctuations
stabilisation
downstream,
average
values
ion
concentrations
each
four
seasons
that
greater
than
those
downstream.
(2)
chemistry
type
HCO3-Ca
type,
composition
mainly
controlled
by
weathering
rocks;
Ca2+,
Mg2+
HCO3−
body
come
from
dissolution
carbonate
rock
weathering,
K+,
Na+,
Cl−,
SO42−
NO3−
input
industrial
activities
agricultural
surface
sources.
(3)
bodies
significantly
impacted
human
activities,
while
downstream
heritage
site's
quality
remains
largely
unaffected
major
anthropogenic
disturbances
but
faces
potential
threats
contamination.
management
sites
require
cross-administrative
collaboration
develop
environmental
framework
tailored
distinctive
attributes
areas.
This
provides
reference
for
resources
Sites.
Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown
Published: April 2, 2025
Language: Английский