Forests,
Journal Year:
2022,
Volume and Issue:
13(3), P. 466 - 466
Published: March 16, 2022
We
review
the
consequences
of
environmental
changes
caused
by
human
activities
on
forest
products
and
forest-dependent
communities
in
Amazon
region—the
vast
Amazonas
River
basin
Guiana
Shield
South
America.
used
2018
2021
Intergovernmental
Panel
Climate
Change
reports
recent
scientific
studies
to
present
evidence
hypotheses
for
ecosystem
productivity
geographical
distribution
plants
species.
have
identified
species
associated
with
highly
employed
exhibiting
reducing
populations,
mainly
linked
deforestation
selective
logging.
Changes
composition
along
a
decline
valuable
been
observed
eastern,
central,
southern
regions
Brazilian
Amazon,
suggesting
accelerated
biodiversity
loss.
Over
1
billion
native
trees
palms
are
being
lost
every
two
years,
causing
economic
losses
estimated
between
US$1–17
billion.
A
decrease
plant
can
be
abrupt
both
temporary
or
persistent
over
20
leading
reduced
opportunities
communities.
Science
technology
investments
considered
promising
implementing
agroforestry
systems
recovering
deforested
degraded
lands,
which
could
engage
companies
that
use
due
supply
chain
advantages.
Annual Review of Ecology and Systematics,
Journal Year:
1976,
Volume and Issue:
7(1), P. 81 - 120
Published: Nov. 1, 1976
Species
distribution
models
(SDMs)
are
numerical
tools
that
combine
observations
of
species
occurrence
or
abundance
with
environmental
estimates.
They
used
to
gain
ecological
and
evolutionary
insights
predict
distributions
across
landscapes,
...Read
More
Nature Communications,
Journal Year:
2021,
Volume and Issue:
12(1)
Published: May 10, 2021
It
has
been
suggested
that
rainfall
in
the
Amazon
decreases
if
forest
loss
exceeds
some
threshold,
but
specific
value
of
this
threshold
remains
uncertain.
Here,
we
investigate
relationship
between
historical
deforestation
and
at
different
geographical
scales
across
Southern
Brazilian
(SBA).
We
also
assess
impacts
policy
scenarios
on
region's
agriculture.
Forest
up
to
55-60%
within
28
km
grid
cells
enhances
rainfall,
further
reduces
precipitously.
This
is
lower
larger
(45-50%
56
25-30%
112
cells),
while
linearly
224
cells.
Widespread
results
a
hydrological
economic
negative-sum
game,
because
agricultural
productivity
outdo
local
gains.
Under
weak
governance
scenario,
SBA
may
lose
56%
its
forests
by
2050.
Reducing
prevents
losses
US$
1
billion
annually.
Perspectives in Ecology and Conservation,
Journal Year:
2019,
Volume and Issue:
17(3), P. 91 - 103
Published: July 1, 2019
Brazil's
environmental
legislation
obliges
private
properties
to
retain
a
fixed
proportion
of
their
total
area
with
native
vegetation,
the
so-called
"Legal
Reserves".
Those
areas
represent
practically
one
third
country's
vegetation
and
are
well
known
for
role
in
biodiversity
protection
provisioning
wide
range
ecosystem
services
landowners
society.
Despite
relevance,
this
instrument
has
been
criticized
by
part
agribusiness
sector
its
representatives
Brazilian
Congress.
The
Legal
Reserve
requirement
is
said
be
too
restrictive
impede
full
expansion
agricultural
activities,
thus
detrimental
development
country.
Here,
we
critically
analyze
arguments
employed
justification
recently
proposed
bill
that
aims
completely
extinguish
Reserves.
We
demonstrate
used
mostly
unsupported
data,
evidence
or
theory,
besides
being
based
on
illogical
reasoning.
Further,
synthesize
principal
benefits
Reserves,
including
health
economic
benefits,
emphasize
importance
these
reserves
water,
energy,
food,
climate
securities,
addition
primary
function
assisting
maintenance
landscapes.
also
highlight
Reserves
key-component
effective
less
expensive
nature-based
solutions,
should
considered
as
assets
Brazil
rather
than
liabilities.
Based
available
sound
scientific
agreement
strongly
oppose
any
attempt
weaken
Nature,
Journal Year:
2023,
Volume and Issue:
615(7951), P. 270 - 275
Published: March 1, 2023
Abstract
Tropical
forests
play
a
critical
role
in
the
hydrological
cycle
and
can
influence
local
regional
precipitation
1
.
Previous
work
has
assessed
impacts
of
tropical
deforestation
on
precipitation,
but
these
efforts
have
been
largely
limited
to
case
studies
2
A
wider
analysis
interactions
between
precipitation—and
especially
how
any
such
might
vary
across
spatial
scales—is
lacking.
Here
we
show
reduced
over
deforested
regions
tropics.
Our
results
arise
from
pan-tropical
assessment
2003–2017
forest
loss
using
satellite,
station-based
reanalysis
datasets.
The
effect
increased
at
larger
scales,
with
satellite
datasets
showing
that
caused
robust
reductions
scales
greater
than
50
km.
greatest
declines
occurred
200
km,
largest
scale
explored,
for
which
percentage
point
by
0.25
±
0.1
mm
per
month.
Reanalysis
products
disagree
direction
responses
loss,
attribute
sparse
situ
measurements.
We
estimate
future
Congo
will
reduce
8–10%
2100.
findings
provide
compelling
argument
conservation
support
climate
resilience.
Abstract
Recent
concurrent
processes
of
vegetation
greening
and
reduced
resilience
(the
capacity
to
recover
from
disturbances)
worldwide
have
brought
many
uncertainties
into
sustainable
ecosystems
in
the
future.
However,
little
is
known
about
conditions
extent
which
affects
changes.
Here
we
assess
both
dynamics
China’s
Loess
Plateau
2000
2020
using
satellite-based
data
an
early
warning
indicator.
Our
results
reveal
overall
trend
vegetated
areas,
while
shifted
gains
losses
at
a
breakpoint
2010.
Vegetation
generally
contributed
gains,
whereas
increased
temperature
precipitation
variability
loss
observed
2011–2020.
These
findings
provide
empirical
evidence
that
does
not
necessarily
correspond
increase
resilience.
We
therefore
recommend
integrating
indicators
ecological
restoration
conservation
efforts
gain
more
comprehensive
understanding
states
support
effective
ecosystem
stewardship.
