Luo Jie, Qi Shihua, Gu X W Sophie, Hou Tao, Lin Lihong
Bull Environ Contam Toxicol. 2016 Feb;96(2):259-64. doi: 10.1007/s00128-015-1678-2.
A long-term field experiment was designed to assess remediation efficiency and ecological risk of phytoremediation of Cd under different cultivation systems with or without ethylene diamine tetraacetic acid (EDTA). EDTA can significantly improve the phytoremediation effectiveness of a historically polluted e-waste dismantling site through enhancing Cd uptake by plants in all cultivation systems along with higher ecological risks to different receptors especially in the presence of Cicer arietinum (chickpea). Moisture content at each layer of soil profile under Eucalyptus globules L. cultivated sites was consistently lower than under chickpea monoculture as a result of E. globules' high water use efficiency. Besides low soil moisture, E. globules can intercept more Cd-rich leachate than chickpea regardless of the presence of EDTA. E. globules could be used for Cd phytoremediation as they can take full advantage of EDTA and decrease ecological risk caused by the chelator.
设计了一项长期田间试验，以评估在不同种植系统（添加或不添加乙二胺四乙酸（EDTA））下植物修复镉的修复效率和生态风险。EDTA可以显著提高一个历史污染的电子垃圾拆解场地的植物修复效果，通过在所有种植系统中增强植物对镉的吸收，同时对不同受体具有更高的生态风险，特别是在种植鹰嘴豆的情况下。由于蓝桉的高水分利用效率，蓝桉种植地土壤剖面各层的含水量始终低于鹰嘴豆单作地。除了土壤湿度低外，无论是否存在EDTA，蓝桉比鹰嘴豆能拦截更多富含镉的渗滤液。蓝桉可用于镉的植物修复，因为它可以充分利用EDTA并降低螯合剂引起的生态风险。
