digiovinazzo vegetation and_flora_it
TRANSCRIPT
Vegetation and flora monitoring in
urban forests of Lombardy
Patrizia Digiovinazzo, Emilio Padoa-Schioppa
Department of Earth and Environmental Sciences
University of Milano-Bicocca
What is vegetation biodiversity monitoring useful for?
Ecology of a forest
Quercus pubescens
Quercus robur
Conservation level of a forest
What is vegetation biodiversity monitoring useful for?
Survey model of vegetation 14 phytosociological surveys 20X20
m using Braun-Blanquet indexes
140 phytosociological surveys 2X2 m using
Londo indexes
Data processing
Distribution area (spettro corologico)
Raunkiaer life forms (spettro biologico)
Landolt ecological indexes
Cluster analysis (Syntax program)
Statistical estimation of species richness in 20X20 m and
2X2 m samples (EstimateS program)
TOTAL NUMBER OF SPECIES 102
spontaneous alien
PHANEROPHYTE 45 9
HEMYCRIPTOPHYTE 36 3
THEROPHYTE 9 2
GEOPHYTE 7 2
NANOPHANEROPHYTE 4 2
CHAMEPHYTE 1 -
TOTAL NUMBER OF SPECIES 102
spontaneous alien
PHANEROPHYTE 45 9
HEMYCRIPTOPHYTE 36 3
THEROPHYTE 9 2
GEOPHYTE 7 2
NANOPHANEROPHYTE 4 2
CHAMEPHYTE 1 -
General distribution
area
General Raunkiaer life
forms
Raunkiaer life forms – single survey
Dis
trib
uti
on
are
as –
sin
gle
su
rvey
Generale
0
10
20
30
40
50
60
70
80
indice F indice R indice N indice H indice D indice L indice T indice K
valore 1 valore 2 valore 3 valore 4 valore 5
Ecological indexes
F = soil moisture
R = soil acidity
N = soil nutrient
H = humus
D = texture and aeration
L = shade-tolerant
T = temperature
K = continental climate level
Landolt ecological indexes
Comparison between Bosco Fontana ecological indexes and the other surveys
more similar
more
different
more
different
Cluster analysis
14 surveys 20X20 m
Ril 1 = 23B PN
Ril 2= A1 PN
Ril 3 = 14A PN
Ril 4 = 28C PN
Ril 5 = Bosco in Città
Ril 6 = Bosco Maristella
Ril 7 = Bosco Fontana
Ril 8 = Bosco Carpaneta
Ril 9 = D1 PN
Ril 10 = 18C PN
Ril 11 = 9A PN
Ril 12 = 25A PN
Ril 13 = 2A PN
Ril 14 = 2A-ND PN
Cluster analysis
14 surveys 20X20 m + species 2X2 m
!?
Maybe these forest patches
are too small, and they are
affected by “edge effect”.
In 2X2 m plots, probably edge
species (alien, cosmopolites
etc) have been surveyed,
making all the plots more
homogeneous
rilievi 20X20m
0
5
10
15
20
25
30
35
40
ril1 ril2 ril3 ril4 ril5 ril6 ril7 ril8 ril9 ril10 ril11 ril12 ril13 ril14
n°
sp
ecie
rilievi 20X20m
Statistical estimation of species richness in 20X20 m
and 2X2 m samples
0
5
10
15
20
25
30
35
40
ril1 ril2 ril3 ril4 ril5 ril6 ril7 ril8 ril9 ril10 ril11 ril12 ril13 ril14
rilievi 20X20m
rilievi 2X2m
Ril 1 = 23B PN
Ril 2= A1 PN
Ril 3 = 14A PN
Ril 4 = 28C PN
Ril 5 = Bosco in Città
Ril 6 = Bosco Maristella
Ril 7 = Bosco Fontana
Ril 8 = Bosco Carpaneta
Ril 9 = D1 PN
Ril 10 = 18C PN
Ril 11 = 9A PN
Ril 12 = 25A PN
Ril 13 = 2A PN
Ril 14 = 2A-ND PN
…THANKS FOR YOUR ATTENTION!
Ril 1 = 23B Parco Nord
Ril 2= A1
Ril 3 = 14°
Ril 4 = 28C
Ril 5 = Bosco in Città
Ril 6 = Bosco Maristella
Ril 7 = Bosco Fontana
Ril 8 = Bosco Carpaneta
Ril 9 = D1
Ril 10 = 18C
Ril 11 = 9A
Ril 12 = 25A
Ril 13 = 2A
Ril 14 = 2A ND
Riferimenti dei rilievi eseguiti
