Growth and metal uptake of energy sugarcane (Saccharum spp.) in different metal mine tailings with soil amendments.
Growth and metal uptake of energy sugarcane (Saccharum spp.) in different metal mine tailings with soil amendments.
复制标题
DOI：
10.1016/s1001-0742(13)60543-4
复制
发表时间：
2014-05
影响因子：
6.9
通讯作者：
Xin Zhang;Yongguan Zhu;Yue-bin Zhang;Yun-xia Liu;Shaochun Liu;Jiawen Guo;Rudan Li;Songlin Wu;Baodong Chen
中科院分区：
文献类型：
--
作者：
Xin Zhang;Yongguan Zhu;Yue-bin Zhang;Yun-xia Liu;Shaochun Liu;Jiawen Guo;Rudan Li;Songlin Wu;Baodong Chen
通过盆栽试验，研究了能源甘蔗在我国的种植可行性。3种不同金属尾矿（Cu、Sn和Pb/Zn尾矿）与未污染土壤以不同比例混合后的土壤中，Cu、Sn和Pb/Zn的含量变化不大。结果表明，甘蔗对尾矿环境具有较强的耐受性。添加20%的锡尾矿和30%的铜尾矿可以提高甘蔗茎的生物量，用于生产生物乙醇。重金属主要滞留在根部，表明甘蔗对尾矿的稳定化有一定的作用。甘蔗渣和甘蔗汁作为生产生物乙醇最有价值的部分，其金属含量仅占总金属含量的0.6%~ 3%和0.6%~ 7%。我们的研究支持了甘蔗在尾矿植物稳定和生物能源生产中的潜在用途。
A pot experiment was conducted to investigate the feasibility of growing energy sugarcane (Saccharumspp.) 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.