Facing Climate Change: Urban Gardening and Sustainable …
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Table 2 The efficiency of some ornamental trees and shrubs grown in Egypt for reducing
percentages of carbon dioxide
CO 2 reduction
percentages after
5 min
CO 2 reduction
percentages after
10 min
CO 2 reduction
percentages after
15 min
Trees
Ficus religiosa
87.65
92.11
92.64
Bauhinia variegate
83.76
89.04
94.33
Cassia nodosa
81.53
85.15
88.78
Eucalyptus
camaldulensis
80.15
85.66
91.18
Ficus sycamores
79.61
90.92
92.11
Khaya senegalensis
79.04
89.35
92.27
Albizzia lebbeck
75.84
87.21
89.02
Chorisia speciose
73.29
90.36
95.92
Cassia fistula
72.54
81.82
91.10
Bombax
malabaricum
72.34
82.76
93.19
Erythrina variegate
71.81
88.14
89.80
Ficus retusa
71.33
78.93
86.53
Ficus benghalensis
67.20
85.72
87.45
Tipuana speciose
65.99
84.77
86.35
Shrubs
Bougainvillea glabra 58.68
62.28
62.47
Dodonaea viscosa
43.28
47.38
48.25
Hedera helix
25.12
25.57
25.61
Lantana camara
20.92
22.21
22.32
Schinus
terebinthifolius
19.11
20.57
20.81
Malvaviscus mollis
14.88
16.62
16.83
Nerium oleander
6.32
6.96
7.04
Acalypha wilkesiana
1.73
2.06
2.11
11.2.2 Erythrina indica
– Has large natural distribution in the tropics
– For cultivation in gardens
– Deciduous tree
– Growing up to 27 m
– Cultivated as an ornamental tree.