Exploring the phytoremediation potential of plant species in soils impacted by gold mining in Northern Colombia
Environmental Science and Pollution Research,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 21, 2025
Abstract
Contamination
of
soils
with
toxic
metals
poses
significant
threats
to
human
health
and
ecosystems.
Plant-based
remediation
strategies
can
play
a
vital
role
in
mitigating
these
risks,
the
use
plants
as
strategy
help
reduce
risks.
In
this
study,
we
investigate
potential
native
accumulating
translocating
metal(loid)s
at
Colombian
site
impacted
by
gold
mining.
The
capacity
is
evaluated
using
translocation
factor
(TF)
from
roots
shoots
bioconcentration
(BCF)
soil
roots.
Metal(loid)
concentrations
followed
order:
Fe
>
As
Hg
Cd
Pb
Zn
Mn
Cu.
plant
tissues,
showed
higher
accumulation
leaves
(3.5
mg/kg)
compared
(2.8
mg/kg).
(17.7
mg/kg),
(3.8
(2.5
(1.2
concentracions
were
also
Metal
stems,
generally
below
1.0
mg/kg,
except
for
(15.0
(1.0
highest
BCF
values
observed
Spondias
mombin
L.
(18.7),
Cecropia
peltata
(8.3)
Gliricidia
sepium
(Jacq.)
Walp
(4.4).
On
other
hand,
Senna
alata
(L.)
Roxb.,
Psidium
guajava
Morinda
citrifolia
exhibited
notable
BFC
44.7,
6.3
5.9,
respectively.
Musa
x
paradisiaca
had
(1.8).
M.
(4.3)
Annona
muricata
(3.2)
TF
Hg,
while
Tabebuia
rosea
(Bertol.)
Bertero
ex
A.DC.
(4.9)
Paspalum
fasciculatum
Willd.
(3.1)
demonstrated
elevated
Pb.
conclusion,
such
P.
,
A.
G.
T.
exhibit
great
application
phytoremediation
tropical
regions
mining
activities.
Язык: Английский
Humans in Africa’s wet tropical forests 150 thousand years ago
Nature,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 26, 2025
Humans
emerged
across
Africa
shortly
before
300
thousand
years
ago
(ka)1-3.
Although
this
pan-African
evolutionary
process
implicates
diverse
environments
in
the
human
story,
role
of
tropical
forests
remains
poorly
understood.
Here
we
report
a
clear
association
between
late
Middle
Pleistocene
material
culture
and
wet
forest
southern
Côte
d'Ivoire,
region
present-day
rainforest.
Twinned
optically
stimulated
luminescence
electron
spin
resonance
dating
methods
constrain
onset
occupations
at
Bété
I
to
around
150
ka,
linking
them
with
Homo
sapiens.
Plant
wax
biomarker,
stable
isotope,
phytolith
pollen
analyses
associated
sediments
all
point
environment.
The
results
represent
oldest
yet
known
humans
habitat
type.
secure
attribution
stone
tool
assemblages
environment
demonstrates
that
Africa's
were
not
major
ecological
barrier
for
H.
sapiens
as
early
ka.
Язык: Английский
Aboveground Biomass in West African Semi‐Arid Ecosystems: Structural Diversity, Taxonomic Contributions and Environmental Drivers
Journal of Sustainable Agriculture and Environment,
Год журнала:
2025,
Номер
4(1)
Опубликована: Фев. 25, 2025
ABSTRACT
The
role
of
plant
diversity
and
biomass
in
ecosystem
functioning
management
is
well
recognized.
However,
the
structural
drivers
aboveground
(AGB)
their
influence
across
savanna
ecosystems
remain
understudied,
particularly
semi‐arid
regions.
Here,
we
hypothesized
that
(i)
species
richness
would
positively
AGB
vegetation
strata
(ii)
environmental
factors
play
a
secondary
compared
to
metrics.
We
tested
these
hypotheses
using
data
from
160
systematically
established
plots
(0.1
ha
each)
two
sites
(Cassou
Kongoussi)
Burkina
Faso.
examined
how
taxonomic
diversity,
(CV‐DBH,
CV‐height)
contribute
carbon
(AGC)
stocks.
A
total
97
woody
66
genera
26
families
were
identified.
Species
had
significant
positive
effect
on
both
strata,
with
more
pronounced
shrub
layers.
Structural
CV‐DBH
CV‐height,
also
contributed
significantly
AGB,
especially
Cassou.
Elevation
negatively
influenced
at
sites,
while
NDVI
EVI2
correlated
AGC
Kongoussi
but
not
primary
underscoring
importance
for
sequestration.
study
highlights
important
determining
shrub‐dominated
savannas.
Management
strategies
focusing
conservation
enhancement
are
essential
optimize
accumulation
ecosystems.
Язык: Английский
Analysis of the Impact of Agriculture and Logging on Forest Habitat Structure in the Ankasa and Bia Conservation Area of Ghana
Ecology and Evolution,
Год журнала:
2024,
Номер
14(12)
Опубликована: Дек. 1, 2024
ABSTRACT
Ghana's
Ankasa
(ACA)
and
Bia
Conservation
Area
(BCA)
are
experiencing
forest
loss
due
to
agricultural
conversions.
However,
there
is
limited
comprehensive
analysis
of
these
conversions
their
impact
on
the
habitat
structure
in
areas.
This
study
aims
analyse
anthropogenic‐induced
fragmentation
ACA
BCA.
Landsat
images
for
epochs
1980,
2000
2020
were
pre‐processed,
subsets
created
using
a
5
km
buffer
two
conservation
The
classified
into
forest,
agriculture
built‐up.
analysed
landscape
pattern
changes
patch
density
(PD),
edge
(ED),
largest
index
(LPI),
shape
(LSI)
aggregation
(AI).
Wilcoxon
signed‐rank
test
was
used
structure.
results
indicate
that
cover
decreased
by
16.4%
from
100,941.6
ha
1980
84,410.6
2020,
BCA,
it
14.4%
70,211.8
60,117.36
ha.
There
no
encroachment
activities
within
areas,
but
activities,
mainly
cocoa
expansion,
increased
buffer,
leading
decline
cover.
shows
patches
have
become
fragmented,
disjointed
isolated,
especially
buffer.
indicated
PD,
AI,
LPI
ED.
immediate
off‐reserve
significant
levels
fragmentation,
resulting
connectivity,
implications
wildlife
conservation.
Ecological
restoration
efforts
needed
reduce
this
potential
impact.
Ecologists
recommended
transitioning
monoculture
agroforestry
improve
connectivity
adjoining
farms
landscapes
Язык: Английский
Disentangling the impacts of soil moisture and vapour pressure deficit on biodiversity patterns and conservation value of tropical forests in Ghana, West Africa
Biological Conservation,
Год журнала:
2024,
Номер
302, С. 110952 - 110952
Опубликована: Дек. 20, 2024
Язык: Английский
Changes in floristic composition, diversity and anthropogenic perturbations in an east African tropical forest
African Journal of Ecology,
Год журнала:
2023,
Номер
61(4), С. 815 - 828
Опубликована: Июнь 2, 2023
Abstract
We
assessed
changes
in
floristic
composition,
diversity
and
anthropogenic
activities
an
East
African
forest;
Echuya
Central
Forest
Reserve
(ECFR).
Using
272
permanent
sample
plots,
comparisons
between
2015
2021
were
made.
Twenty‐two
tree
species
recorded
with
Macaranga
capensis
being
the
most
dominant.
Tree
density
increased
significantly
from
152
stems/ha
to
306
2021.
Similarly,
trees
basal
area
19
m
2
/ha
38
The
bamboo
stem
decreased
11,931
1807
Shrubs,
lianas,
vines
herbs'
densities
did
not
show
significant
differences
Furthermore,
a
number
of
human
22
per
hectare
83
Non‐Metric
Multidimensional
Scaling
(NMDS)
ordination
shows
that
strongest
impact
on
composition
areas
fuelwood
collection,
trails,
livestock
grazing
pole
cutting.
In
conclusion,
ECFR
is
floristically
poor;
secondary
forest
are
replacing
could
be
negatively
affecting
flora.
recommend
interventions
increasing
people's
livelihood
incomes
decrease
their
dependence
resources.
Язык: Английский
Assessing Forest Cover Distribution, Species Diversity, and Richness of the Buffer Zone for Strategic Forest Management Planning for Nimule National Park, South Sudan
Open Journal of Ecology,
Год журнала:
2023,
Номер
13(11), С. 836 - 864
Опубликована: Янв. 1, 2023
Natural
forest
ecosystems
play
an
essential
role
in
the
conservation
of
biodiversity
many
plants
and
animals
by
providing
them
with
habitat
suitable
environments.
Studies
have
shown
that
biodiversity-protected
areas
reduce
loss
degradation
natural
habitats
to
various
wild
species
plants.
This
study
examined
resources
five
subzones
conducting
tree/shrub
inventory
be
able
develop
effective
management
plan
for
Buffer
Zone
Forest
Reserve
sustainable
flora
fauna
Nimule
National
Park.
is
view
identify
main
tree
shrub
species;
assess
composition,
distribution,
abundance
determine
diversity
as
well
richness
these
terms
growth
performance
where
DBH
heights
trees/shrubs
circular
sample
plots
were
measured.
The
results
revealed
overall
mean
H
13.83
cm
6.61
m
respectively.
highest
number
trees
was
obtained
subzone
B
followed
D,
while
least
found
A.
density
0.83
tons/ha.
total
basal
area
volume
per
hectare
3252.74
m2/ha
46,540.82
m3/ha
distribution
indicate
Combretum
spp,
Cedrella
spp.,
Grewia
mollis,
Acacia
Sieberiana,
Ziziphus
abysinica,
seyal
most
dominant
species,
over
12
at
deposition
side
River
Nile,
13
western
Administration
site
shows
only
7
lowland
Mt.
Gordon
show
14
different
whereas
10
on
top
Gordon.
indices
evenness
H’,
E
depicted
2.507,
0.871,
0.840
These
yielded
are
relatively
moderate.
Therefore,
efforts
very
necessary
improve
maintain
quality
vegetation
cover.
Язык: Английский
Exploring the Phytoremediation Potential of Plant Species in Soils Impacted by Gold Mining in Northern Colombia
Research Square (Research Square),
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 13, 2024
Abstract
Contamination
of
soils
with
toxic
metals
poses
significant
threats
to
human
health
and
ecosystems.
Plant-based
remediation
strategies
can
play
a
vital
role
in
mitigating
these
risks,
the
use
plants
as
strategy
help
reduce
risks.
In
this
study,
we
investigate
potential
native
accumulating
translocating
metal(loid)s
at
Colombian
site
impacted
by
gold
mining.
The
capacity
is
evaluated
using
translocation
factor
(TF)
from
roots
shoots
bioconcentration
(BCF)
soil
roots.
Metal(loid)
concentrations
followed
order:
Fe
>
As
Hg
Cd
Pb
Zn
Mn
Cu.
plant
tissues,
showed
higher
accumulation
leaves
(3.5
µg/kg)
compared
(2.8
µg/kg).
(17.7
µg/kg),
(3.8
(2.5
(1.2
concentracions
were
also
Metal
stems,
generally
below
1.0
µg/kg,
except
for
(15.0
(1.0
highest
BCF
values
observed
Spondias
mombin
L.
(18.7),
Cecropia
peltata
(8.3)
Gliricidia
sepium
(Jacq.)
Walp
(4.4).
On
other
hand,
Senna
alata
(L.)
Roxb.,
Psidium
guajava
Morinda
citrifolia
exhibited
notable
BFC
44.7,
6.3
5.9,
respectively.
Musa
x
paradisiaca
had
(1.8).
M.
(4.3)
Annona
muricata
(3.2)
TF
Hg,
while
Tabebuia
rosea
(Bertol.)
Bertero
ex
A.DC.
(4.9)
Paspalum
fasciculatum
Willd.
(3.1)
demonstrated
elevated
Pb.
conclusion,
such
P.
fasciculatum,
A.
muricata,
citrifolia,
G.
T.
exhibit
great
application
phytoremediation
tropical
regions
mining
activities.
Язык: Английский
Diversity and Population Status of Tree Species in Bakin-Dutse of Ardo-Kola LGA, Taraba State, Nigeria
S.A. Hammanjoda,
B. W. Barau,
U Buba
и другие.
Deleted Journal,
Год журнала:
2022,
Номер
6(2), С. 379 - 390
Опубликована: Окт. 1, 2022
Nigerian
forest
resources
are
constantly
threatened
due
to
many
anthropogenic
activities
and
considering
their
importance
in
recycling
oxygen,
preventing
erosion,
biodiversity
habitats
etc.
This
study
was
carried
out
determine
the
diversity
population
status
of
trees.
A
50km2
plot
studied
using
line
transect
method,
Point
Centered
Quartet
technique
deployed
enumerate
standing
tree
biomass.
Total
Height,
Diameter
at
Breast
Height
Crown
cover
were
also
measured
recorded.
The
results
showed
that
200
trees
spread
across
fifteen
(15)
families
forty
(40)
species
identified.
Fabaceae
Family
had
more
representatives
12
(30%)
while
Bignoniaceae,
Euphorbiaceae,
Meliaceae,
Sapotaceae,
Rutaceae
Olecaceae
1
(2.5%)
representation
each.
Parkia
biglobosa
highest
abundance
37
(18.5%)
Anacardium
ocidentale,
Brachystegia
eurycoma,
Ceiba
pentandra,
Cocos
nucifera,
Combretum
molle,
Ficus
thoninngii,
Khaya
senegalensis,
Haematostaphis
barterii,
Lannea
microcarpa,
Limonia.
acidissima,
Mangifera
indica,
Mitragyna
inermis,
Nauclea
latifolia,
Newbouldia
laevis,
Psidium
guajava
Tamarindus
indica
all
recorded
least
(0.5%).
Diversity
indices
Hʹ=2.65
(North),
Hʹ=2.49
(South),
Hʹ=2.72
(East)
Hʹ=2.37
(West)
90%
enumerated
need
serious
conservation
efforts.
Importance
Value
(46.84%)
recoded
(2.21%).
It
then
concluded
Bakin-dutse
community
Ardo-kola
LGA
needs
conserving,
hence,
we
suggest
a
concerted
effort
from
Governmental
Organizations,
Non-Governmental
Organization
Local
Community
curtail
rapid
decline
these
important
resources.
Язык: Английский