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Table 4
-
Characteristics of the main non-native evergreen tree species with technical and ecological
quality for forestry in the Municipality of Rome
Species or genus
Soil characteristics
Ecological
characteristics Benefits
Notes
Cedrus atlantica
Adaptable to soils of
different texture, but
without
standing
water.
Quite temperate
species.
Sun-demanding
increases with
age.
Long-lived
species. Efficient
in
mitigating
noise and air
pollution.
Species native to the
northwest Africa.
Cedrus deodara
Rich and deep, well
drained
soils.
Indifferent to the pH.
Heliophilous
species, it fears
frosts
and
prolonged
waterlogging .
Efficient
in
mitigating noise
and air pollution.
Native of the western
Himalaya
slopes.
Sensitive
to
air
pollution.
Cedrus libani
It likes sandy, poor,
weak and acid soils,
but it grows easily in
any terrain, including
alkaline and clay.
In nature it
grows along the
limestone
slopes
facing
north, in the
mountain plain.
Efficient
in
mitigating noise
and air pollution.
Native of the Eastern
Mediterranean.
Cupressus
sempervirens
Indifferent to the
substrate,
it
can
grows on degraded,
dry and poor soils.
It
is
a
thermophilic
species
and
suffers
the
prolonged cold.
Efficient in the
capture of the
dusts.
Subject to Cortical
cancer
(
Seiridium
cardinal
).
Plant typical of the
Italian
landscape
although native to
Asia Minor and the
Eastern
Mediterranean.
High
degree
of
allergenicity.
Olea europea
It
prefers
well-
drained,
even
shallow, rocky soils.
It suffers in heavy
and not well drained
soils.
Thermophilic
and
heliophilous
Mediterranean
species,
with
strong
xerophilous
characters.
Good naturalistic
features.
It
is
recommended for
environmental
restoration
measures.
Conducive
to
animal
biodiversity. Low
potential
for
ozone formation.
In Rome it is not
indigenous although it
is
cultivated
for
thousands of years.
Pinus halepensis
It adapts well to all
soils, even dry and
chalky, but not wet.
Mediterranean
pioneer
and
thermophilic
species.
Efficient in the
capture of the
powders.
Low degree of
allergenicity.
It is to be considered
sub-spontaneous only
in Roman coast soils
of "Duna recente".
Pinus pinea
It adapts to various
soils except those too
wet or with stagnant
water; it is resistant
to high doses of
limestone only on
sand.
Heliophilous,
thermophilic
and xerophilous
Mediterranean
species.
Efficient in the
capture of dusts.
Although not native
in Rome it grows very
well.
Not suitable for street
trees because of the
roots.
Producing
terpenes
that can promote the
production of ozone