Heavy Metals Contaminated Soils and Phytoremediation Strategies in Taiwan - Soil Contamination - page 112

No. Plant species Scientific name Property
1 Bougainvillea Bougainvillea spp. woody
2 Rainbow pink Dianthus chinensis herbaceous
3 Serissa Serissa japonica woody
4 French marigold Tagetes patula herbaceous
5 Rose of Shoron Hibiscus syriacus L. woody
6 Water willow Salix warburgu woody
7 Chinese ixora Ixora chinensis Lam. woody
8 Sunflower Helianthus annuus herbaceous
9 Chinese hibiscus Hibiscus rosa-sinensis woody
10 Gold dewdrop Duranta repens woody
11 Kalanchoe Kalanchoe blossfeldiana herbaceous
12 Creeping Trilobata Wedelia trilobata herbaceous
13 Garden Canna Canna generalis spp. herbaceous
14 Garden verbena Verbena hybrida herbaceous
15 Malabar chestnut Pachira macrocarpa Walp woody
16 Purslane Portulaca oloraua Linn herbaceous
17 Common Lantana Lantana camara L. woody
18 Fancy leaf caladium Caladium hortulanun Birdsey herbaceous
19 Coleus Coleus blumei herbaceous
20 Golden trumpet Allamanda cathartica Linn woody
21 Common melastoma Melastoma candidum woody
22 Carland flower Hedychium coronarium herbaceous
23 Manaca raintree Brunfelsia uniflora woody
24 Yellow Cosmos Cosmos sulphureus herbaceous
25 Sliver apricot Ginkgo biloba L. woody
26 Temple tree Plumeria acutifolia Poir. herbaceous
27 Orchid tree Aglaia odorata Lour. woody
28 Star cluster Pentas lanceolata herbaceous
29 Blue daza Evolvulus nuttallianus herbaceous
30 Cockscomb Celosia cristata herbaceous
31 Scandent Schefflera Schefflera arboricola Hayata. woody
32 Bojers spurge Euphorbia splendens woody
33 Croton Codialum variegatum. woody
Table 2. The 33 plant species planted in the central Taiwan used for in-situ selection
experiment.
For Cu, the accumulation capacity of various tested plants was in the order of Cockscomb
(117±40 mg kg -1 ), Garden verbena (84.7±46.6 mg kg -1 ), and Star cluster (80.4±80.6 mg kg -1 ).
The average Cu concentration of corn and food grains of China was 2.67 and 6.46 mg kg -1
(Chen et al., 1994) and the Cu concentration for foodstuff crops was less than 10 mg kg -1
(Kabata-Pendias & Pendias, 2001). The Cu concentration in the brown rice of Japan and
Indonesia was 2.16-4.4, 2.9, and 3.41 mg kg -1 , respectively (Iimura, 1981; Masironi, 1977;
Suzuki et al., 1980). Although the accumulated Cu concentration of these 33 plants
increased after 33 days, the BCF were less than 1.1 because the surface soil has low Cu
concentration, ranged from 112 to 122 mg kg -1 . Because of the low Ni concentration in the
initial plants, the Ni concentration of shoot in the 33 plants increased after in-situ planting