review of vegetation survivorship & …...smp tree inventory 260 acer (maple) species diversity...
TRANSCRIPT
REVIEW OF VEGETATION SURVIVORSHIP & SPECIES SELECTION
FOR GREEN STORMWATER INFRASTRUCTURE SYSTEMS
RACHEL AHERN STREIT | CHPLANNING GSI MAINTENANCE | GREEN CITY, CLEAN WATERS
WHY, HOW, & WHAT.
WHY, HOW, & WHAT.
why study survivorship in SMPs?
WHY, HOW, & WHAT.
how we’re collecting our data
WHY, HOW, & WHAT.
a vegetation inventory design recommendations a recommended plant list
stormwater planter rain garden
green roof tree trench stormwater bump-out
basin
DRY WET
SEDIMENT
POLLUTANTS & TOXINS
SANDY SOILS
EROSION
INVASIVE SPECIES
VANDALISM
DAMAGE BY VEHICLES
DRY WET
plant replacement events at SMP sites in the past year
63 trees (5%)
1,707 perennials (5-10%)
52 shrubs (4%)
vegetation surveys this year
37 rain gardens, bump-outs, and planters
196 tree trenches 233
# INDIVIDUALS
% COVER
AREA (SF) TREE CALIPER
HEALTH STATUS
vegetation surveys this year
37 rain gardens, bump-outs, and planters
196 tree trenches 233
MAINTENANCE MAPS WITH PHOTOPOINTS
PP2>
PP1
PP2
ARCGIS MAPS FIELD NOTES
SMP TREE INVENTORY
260
177
81 78 75 73 70 65
45 41 39 32 31 26 22 20 18 17 15 12 11 10 9 8 8 8 7 6 5 5 4 4 3 3 3 2 2 1 1 1 1 1 1 1 1
0
50
100
150
200
250
300
Acer
Prun
usCe
rcis
Gled
itsia
Ulm
usSy
ringa
Que
rcus
Plat
anus
Crat
aegu
sTi
liaCl
adra
stis
Amel
anch
ier
Zelk
ova
Celti
sCo
rnus
Gink
goM
alus
Liqu
idam
bar
Lage
rstr
oem
iaCe
rcid
iphy
llum
Gym
nocl
adus
Betu
laM
aack
iaM
agno
liaCa
rpin
usEu
com
mia
Koel
reut
eria
Aesc
ulus
Met
aseq
uoia
Labu
rnum
Ulm
acea
eRo
bini
aPy
rus
Taxo
dium
Chio
nant
hus
Fagu
sCa
rya
Frax
inus
Phel
lode
ndro
nCo
rpin
usLi
riode
ndro
nO
xyde
ndru
mJu
nipe
rus
Ilex
Nys
sa
Popu
latio
n Si
ze
Genus
136 31 25 18 16 15 11 5 2
0200
Acer (Maple) Species Diversity
50 34 32 25 22 7 5 2 0
100
Prunus (Cherry) Species Diversity
17 11 10 8 6 6 4 3 3 2 0
20
Quercus (Oak) Species Diversity
SMP Tree Health Status
Acer Prunus
Cercis
Gleditsia
Ulmus
Syringa
Quercus
Platanus
Crataegu
sTilia
Cladrasti
s
Amelanchier
Zelkova
Celtis
Cornus
Ginkgo
Malus
Liquidambar
Lagerstroemia
Cercidiphyllum
Gymnocladus
Betula
Unhealthy 16 9 4 4 7 7 3 3 2 4 2 0 0 0 1 0 0 5 0 4 0 0Dead 5 2 0 1 1 1 0 0 3 0 4 1 0 0 2 0 2 0 0 0 5 0Healthy 222 155 77 69 67 65 64 62 28 37 28 30 31 26 19 18 16 12 15 8 6 10
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
% o
f Gen
era
SMP Tree Vandalism & Health by Site Type
0%
2%
4%
6%
8%
10%
12%
14%
16%
Unhealthy Vandalized Dead
% o
f Site
Typ
e To
tal
School Site Recreation Site All Other Sites
Herbaceous Plant Inventory
0
200
400
600
800
1000
1200
1400
1600
Estim
ated
Sq.
Ft.
Herbaceous Genus
Asclepias incarnata S. novae-angliae ‘Purple Dome’
Hibiscus coccineus Monarda didyma Rudbeckia fulgida ‘Goldstrum’
The Soft Sites: Plant Inventory
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
Estim
ated
Sq.
Ft.
Groundcover Genus/Family
Juncus effusus Pennisetum ‘Hameln’ Carex stricta Calamagrostis acutiflora Panicum ‘Shenandoah’
The Soft Sites: Plant Inventory
0
500
1000
1500
2000
2500
3000
Estim
ated
Sq.
Ft.
Small Woody Genus
Itea virginiana Cornus alba Viburnum nudum Rhus aromatica ‘Gro-Low’ Aronia ‘Brilliantissima’
Stormwater Bump-out: Plant Competition
2015 2014
0
500
1000
1500
2000
2500
3000
2014
2015
Area
(Squ
are
Feet
)
Plant (Genus)
Stormwater Bump-out: Plant Competition
Stormwater Bump-out: Plant Competition
0
500
1000
1500
2000
2500
3000
2014
2015
Area
(Squ
are
Feet
)
Plant (Genus)
Source of Phragmites
Stormwater Bump-out
0
500
1000
1500
2000
2500
3000
2014
2015
Area
(Squ
are
Feet
)
Plant (Genus)
Stormwater Bump-out: Plant Competition
Source of Phragmites
Stormwater Bump-out
0
500
1000
1500
2000
2500
3000
2014
2015
Area
(Squ
are
Feet
)
Plant (Genus)
Stormwater Bump-out: Plant Competition
0
5
10
15
20
25
30
2012
2014
0
5
10
15
20
25
2012
2014
Area 2
Area 3
2015 2012
Plant (Genus)
Plant (Genus)
Num
ber o
f Ind
ivid
uals
N
umbe
r of I
ndiv
idua
ls
Rain Gardens: Site Variability
2015 2012
0
5
10
15
20
25
30
2012
2014
0
5
10
15
20
25
2012
2014
Area 2
Area 3
2015 2012
Plant (Genus)
Plant (Genus)
Num
ber o
f Ind
ivid
uals
N
umbe
r of I
ndiv
idua
ls
Rain Gardens: Site Variability
2015 2012
Rain Gardens: Effective Planting Schemes
2015 2014
Platanus x acerifolia Fotherfilla fardenii ‘Mount Airy’ Itea virginia ‘Henry’s Garnet’ Aster divaricatus Chasmanthium latifolium Echinacea purpurea Phlox paniculata ‘David’ Panicum vigatum
Philadelphia’s Native Plant Nursery
Photos courtesy of Maximillian Blaustein, Philadelphia Parks & Recreation
COLLECTION
GERMINATION
CONTAINERS
