Physiological responses and accumulation of pollutants in woody species under in situ polluted condition in Southern China.
J Plant Res
; 126(1): 95-103, 2013 Jan.
Article
de En
| MEDLINE
| ID: mdl-22806581
ABSTRACT
Physiological leaf traits and accumulation of pollutants of ten woody species in response to air pollution at seriously polluted site Sanguigang (SGG) and control site Maofengshan (MFS) in Southern China were studied. Net photosynthetic rates of most species at SGG were lower than those at MFS, but stomatal conductance (g(s)) showed opposite trend. The specific leaf area of Aporusa dioica, Sapium discolor, Schefflera octophylla and Toxicodendron succedaneum were significantly, 46.77, 13.09, 55.11 and 23.51 %, higher in SGG than in MFS, while chlorophyll content being the opposite. A. dioica had the highest sulphur (S) content at both sites (11.74 mg g(-1) at SGG and 11.07 mg g(-1) at MFS). Heavy metals concentrations were generally higher in species at SGG than at MFS. S. octophylla showed significantly higher concentrations of Zn, Cd and Mn (341.81, 2.41 and 2,287.29 µg g(-1)) than other species at SGG. Moreover, A. dioica had the highest Pb concentration (9.19 µg g(-1)), and L. glutinosa showed the highest Cr concentration (3.40 µg g(-1)). According to the integrated results, we infer that A. dioica, S. octophylla and L. glutinosa are the promising species for phytoremediation in the ceramic industry polluted environment.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Phénomènes physiologiques des plantes
/
Feuilles de plante
/
Métaux lourds
/
Polluants atmosphériques
/
Exposition environnementale
Pays/Région comme sujet:
Asia
Langue:
En
Journal:
J Plant Res
Sujet du journal:
BOTANICA
Année:
2013
Type de document:
Article
Pays d'affiliation:
Chine