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| Content and accumulation characteristics of heavy metals in dominant plants in Xiao Bai He Area of the Yellow River Wetland |
| Received:March 14, 2016 |
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| KeyWord:Yellow River Wetland, vegetation, heavy metal, enrichment coefficient |
| Author Name | Affiliation | E-mail | | GAO Jing-tian | The College of Environment and Energy Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China | | | DU Fang-yuan | The College of Environment and Energy Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China | | | LI Wei-ping | The College of Environment and Energy Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China | sjlwp@163.com | | HAN Jian-hong | The College of Environment and Energy Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China | | | WANG Xiao-yun | The College of Environment and Energy Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China | | | BAO Jiao-qi | The Yellow River Wetland Management Center of Baotou, Baotou 014010, China | | | FAN Ai-ping | The Yellow River Wetland Management Center of Baotou, Baotou 014010, China | |
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| Abstract: |
| The contents of heavy metals such as As, Cd, Cr, Cu, Ni, Pb and Ni were measured in the three dominant plants(Phalaris arundinacea, Typha orientalis and Phragmites australis) and the corresponding soil samples, and the contamination levels of heavy metal in soil were carried out by the single factor analysis and comprehensive analysis. At the same time, the characteristics of absorption and accumulation of heavy metals in 3 dominant plants were analyzed in Xiao Bai He Area of the Yellow River Wetland, Baotou. The results showed:the three vegetation soils were moderate polluted, and the contamination levels of As, Cd and Zn were relatively serious. The Ni concentration coefficient of aboveground and underground parts of Typha orientalis is greater than 1, and has positive effect on the recovery of Ni in polluted soils. Transfer coefficient of As, Cd and Zn in Typha orientalis and Phragmites australis is relatively high, means that the two plants have good patience to As, Cd and Zn of soils, but the concentration coefficient and transfer coefficient of As, Cd and Zn, which in high contamination levels, in the three dominant plants were less than 1, means that the three dominant plants can't repair soils polluted by As, Cd and Zn. The interaction of heavy metals in different plants is different, and the effect of the results will have a certain effect on the accumulation of heavy metals in plants. |
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