Comparison of Phytoremediation Potential of Nerium indicum with Inorganic Modifier Calcium Carbonate and Organic Modifier Mushroom Residue to Lead-Zinc Tailings.
Comparison of Phytoremediation Potential of Nerium indicum with Inorganic Modifier Calcium Carbonate and Organic Modifier Mushroom Residue to Lead-Zinc Tailings.
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DOI：
10.3390/ijerph191610353
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发表时间：
2022-08-19
影响因子：
--
通讯作者：
Shi, Lei
中科院分区：
文献类型：
--
作者：
Su, Rongkui;Ou, Qiqi;Wang, Hanqing;Luo, Yiting;Dai, Xiangrong;Wang, Yangyang;Chen, Yonghua;Shi, Lei
目前，植物修复技术在重金属尾矿生态修复中的应用越来越受到重视。比较了无机改性剂碳酸钙（C1：5%，C2：10%，C3：15%）和有机改性剂蘑菇渣（M1：10%，M2：20%，M3：30%）对木本植物夹竹桃（Nerium indicum）对Pb、Zn胁迫的生理生化响应及耐性机制。结果表明，pH值变化趋势为C组> M组> CK组，有机质变化趋势为M组> CK组> C组。磷酸酶活性和过氧化氢酶活性均表现为M组> C组> CK组，但过氧化氢酶活性更易受碳酸钙浓度的影响。两种改性剂均能促进尾矿中Pb、Zn、Cu、Cd向更稳定的有机结合态和残渣态转化。但蘑菇渣的稳定效果较好，其稳定性为Pb、Zn > Cd、Cu。两种改性剂均能提高夹竹桃的生物量，蘑菇渣的改性效果优于碳酸钙。各处理夹竹桃各器官中Pb/Zn含量和积累量均表现为根>茎>叶。与对照组相比，C1和M1组Pb/Zn的富集系数降低，迁移系数增加。随着改性剂浓度的增加，富集系数增加1.75~ 52.94%，而迁移系数迅速下降（20.01~64.46%）。可见，碳酸钙和蘑菇渣添加剂均能促进夹竹桃在铅锌尾矿中的生长，增强其植物修复潜力。
At present, the application of phytoremediation technology in the ecological remediation of heavy metal tailings is receiving more and more attention. In this study, the physiological and biochemical response and tolerance mechanism of woody plant Nerium indicum to Pb and Zn under different proportions of inorganic modifier calcium carbonate (C1: 5%, C2: 10%, C3: 15%) and organic modifier mushroom residue (M1: 10%, M2: 20%, M3: 30%) was compared. The results showed that the pH value has a trend of C group > M group > CK group and organic matter has a trend of M group > CK group > C group. Phosphatase activity and catalase activity has a trend of M group > C group > CK group, but catalase was more vulnerable to the calcium carbonate concentration. Both modifiers can promote the transformation of Pb, Zn, Cu, and Cd in tailings to more stable organic bound and residual states. However, the stabilization effect of mushroom residue is better, and its stability is Pb, Zn > Cd, Cu. Both modifiers can increase the biomass of Nerium indicum and the modification effect of mushroom residue is better than calcium carbonate. Pb/Zn content and accumulation in Nerium indicum organs showed root > stem > leaf in all groups. Compared with the CK group, the enrichment coefficient of Pb/Zn in C1 and M1 groups decreased, while the translocation factor of Pb/Zn in C1 and M1 groups increased. With the increase in modifier concentration, the enrichment coefficient increases about 1.75~52.94%, but the translocation factor decreases rapidly (20.01~64.46%). Clearly, both the calcium carbonate and mushroom residue amendment could promote the growth ability of Nerium indicum in lead–zinc tailings and strengthen the phytoremediation potential.
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影响因子：
3.9
作者：
Galende, Maria A.;Becerril, Jose M.;Hernandez, Antonio
通讯作者：
Hernandez, Antonio
影响因子：
4.8
作者：
Li, Junjian;Zhou, Xiaomei;He, Jizheng
通讯作者：
He, Jizheng
DOI：
10.3724/sp.j.1011.2010.00158
发表时间：
2010-01-01
期刊：
Zhongguo Shengtai Nongye Xuebao / Chinese Journal of Eco-Agriculture
影响因子：
--
作者：
Li ZhengQiang, Li ZhengQiang;Xiong JunFen, Xiong JunFen;Wang, J. X.
通讯作者：
Wang, J. X.
影响因子：
2.8
作者：
Luo, Zhongtao;Tang, Changbo;Mu, Yuandong
通讯作者：
Mu, Yuandong
镉抗性 2 (SaPCR2) 促进超富集植物景天 (Sedum alfredii Hance) 根部的镉流出
影响因子：
5.6
作者：
Lin J;Gao X;Zhao J;Zhang J;Chen S;Lu L
通讯作者：
Lu L