Growth and metal uptake of energy sugarcane (Saccharum spp.) in different metal mine tailings with soil amendments
文献类型: 外文期刊
作者: Zhang, Xin 1 ; Zhu, Yongguan 1 ; Zhang, Yuebin 3 ; Liu, Yunxia 1 ; Liu, Shaochun 3 ; Guo, Jiawen 3 ; Li, Rudan 3 ; Wu, So 1 ;
作者机构: 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361003, Peoples R China
3.Yunnan Acad Agr Sci, Sugarcane Res Inst, Kaiyuan 661600, Yunnan, Peoples R China
关键词: Bioenergy crop;Sugarcane;Metal mine tailings;Phytoremediation
期刊名称:JOURNAL OF ENVIRONMENTAL SCIENCES ( 影响因子:5.565; 五年影响因子:5.066 )
ISSN:
年卷期:
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收录情况: SCI
摘要: A pot experiment was conducted to investigate the feasibility of growing energy sugarcane (Sac-charum spp.) in three different metal mine tailings (Cu, Sn and Pb/Zn tailings) amended with uncontaminated soil at different mixing ratios. The results indicated that sugarcane was highly tolerant to tailing environments. Amendments of 20% soil to Sn tailings and 30% soil to Cu tailings could increase the biomass of cane-stem for use as the raw material for bioethanol production. Heavy metals were mostly retained in roots, which indicated that sugarcane was useful for the stabilization of the tailings. Bagasse and juice, as the most valuable parts to produce bioethanol, only accounted for 0.6%-3% and 0.6%-7% of the total metal content. Our study supported the potential use of sugarcane for tailing phytostabilization and bioenergy production.
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