复合重金属污染土壤对甘蔗产量和质量的影响

Effects of multi heavy mental polluted soil on sugarcane output and quality

研究了受锌(Zn)、砷(As)、镉(Cd)和铅(Pb)复合污染的农田土壤对9个甘蔗品种(桂糖02467、粤糖96/86、台糖88/99、贛18号、园林18号、园林17号、福农15号、园林9号和台糖25号)产量和质量的影响。结果表明,甘蔗叶中的Zn、As、Cd和Pb含量分别达12.892～26.337 mg/kg、0.144～0.320 mg/kg、0.042～0.073 mg/kg和6.832～10.241 mg/kg,蔗汁中Zn、As、Cd和Pb含量分别达1.391～4.032 mg/kg、0.010～0.016 mg/kg、0.010～0.058 mg/kg和0.072～0.108 mg/kg;甘蔗植株体内的As含量和Pb含量以及Zn含量和Cd含量均呈显著的正相关。通过DTOPSIS法综合分析和评价甘蔗的性状与体内重金属含量情况,发现园林18号、园林17号、福农15号和粤糖96/86等4个品种的产量较高、对重金属的抗性较好,且蔗汁重金属含量低,是比较适合当地复合污染土壤种植的品种。

This experiment research that multi heavy metals contaminated soil by zinc（Zn）,arsenic（As）,cadmium（Cd） and lead（Pb） compound contaminated effected output and quality on nine kinds of sugarcane（GuiTang02467,YueTang96/86,TaiTang 88/99,Gan18,YuanLin 18,Yuanlin 17,FuNong 15,YuanLin 9 and TaiTang 25）,in order to choice the sugarcane variety which could more appropriate local plant.Our results indicated that in Sugarcane leaf the content of Zn,As,Cd and Pb is 12.892～26.337 mg/kg,0.144～0.320 mg/kg,0.042～0.073 mg/kg and 6.832～10.241 mg/kg,in sugarcane juice the content of Zn,As,Cd and Pb is 1.391～4.032 mg/kg,0.010～0.016 mg/kg,0.010～0.058 mg/kg and 0.072～0.108 mg/kg,in sugarcane the content of As and Pb,the content of Zn and Cd,are present a significant positive correlation.Using the DTOPSIS analytic method analyse and evaluate sugarcane character and the content of Heavy metals in sugarcane,discover that YuanLin18,YuanLin17,FuNong15 and YueTang96/86 are more appropriate plants in local.