Physiological Characteristics and Enrichment Effect of Submerged Plants in Sediment Contaminated by Complex Heavy Metals
Received:July 16, 2022   Revised:July 26, 2022   Accepted:July 29, 2022      Published Online:December 19, 2022
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DOI:doi:10.3969/j.issn.1007-7545.2023.01.010
KeyWord:heavy metal; submerged plants; phytoremediation; transport coefficient; antioxidant enzyme
                 
AuthorInstitution
LI Yi-dan 北京联合大学 生物化学工程学院
WAN Ying-xin 北京联合大学 生物化学工程学院
SONG Yan-yan 北京联合大学 生物化学工程学院
ZHANG Jing 北京联合大学 生物化学工程学院
GAO Jing-yun 北京联合大学 生物化学工程学院
HUANG Hong-wei 北京联合大学 生物化学工程学院
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Abstract:
      In order to investigate enrichment effect of submerged plants on heavy metal pollution in sediment of Poyang Lake, four submerged plants, Myriophyllum spicatum L., Ceratophyllum demersum L., Vallisneria natans (Lour.) Hara and Potamogeton crispus L. were selected to conduct ecological tank planting experiments in sediment of Nanjishan wetlands and Le""an River to study heavy metal content and tolerance characteristics of the plants. The results show that submerged plants can effectively enrich heavy metals and show different resistance to heavy metal stress. Myriophyllum spicatum L. has high adsorption efficiency for Cu and Pb, Vallisneria natans (Lour.) Hara can be used as Cu stabilizer and has good resistance, Potamogeton crispus L. has good enrichment effect for Zn but poor resistance, easy to be stressed by heavy metals. This study can provide reference for phytoremediation of heavy metal contaminated sediment.
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