29
Species or
genus
Soil characteristics
Ecological
characteristics
Benefits
Notes
(optimum pH > 6);
it can grew on
pioneers and also
clayey soils, but
well drained.
absorbing
function.
Good
ability
to
colonize
post
-
agricultural
lands.
Low
degree
of
allergenicity of pollen.
Quercus robur
It likes deep, fresh,
fertile from sub-acid
to subalcaline soils,
with good water
availability
throughout the year,
even
with
the
surface water table;
It shuns those too
compact.
Temperate species, in
the
Mediterranean
climate it’s limited to
alluvial areas.
Long-lived
species
with relatively rapid
growth than other
oaks.
Low
degree
of
allergenicity of pollen.
In its natural state
in the Campagna
Romana
is
confined to areas
with high water
table or wet for
much of the year.
Salix alba
Indifferent to the pH
it needs of soils with
good
water
availability
throughout the year.
Typically
riparian
species.
Fast-growing species
suitable
for
installations in the
vicinity
of
watercourses.
Tolerates
air
pollution. Low degree
of allergenicity of
pollen.
Not recommended
for cultivation in
the vicinity of
buildings or duct
systems, that can
be damaged by the
roots.
Sorbus
domestica
The best conditions
for
growth
are
offered by basic,
deep
and
rich
texture soils.
It is
widespread
mainly in the range
of thermophilic sub-
Mediterranean oaks.
Conducive to animal
biodiversity.
Ulmus minor
Fertile and never
very dry soils.
Mesophilic and also
ruderal
areas
(embankments
of
infrastructure).
Effective in mitigating
both acoustic and
atmospheric pollution.
Sensitive to Dutch
elm disease.