土壤三价锑污染对甜芥菜生长及品质的影响研究  

Effect of Soil Antimony(Ⅲ) Pollution on the Growth and Quality of Sweet Mustard

作　　者：蓝唯源[1] 宋书巧[1] 吴浩东[1] 王德光[1] 

机构地区：[1]广西师范学院资源与环境科学学院,广西南宁530001

出　　处：《环境科学与技术》2009年第2期20-23,共4页Environmental Science & Technology

基　　金：广西教育厅项目(200509058);广西自然科学基金项目(桂科自0679019);广西科学研究与技术开发项目(桂科攻0719005-2-2A)

摘　　要：以四季抗热甜芥菜为材料,研究了土壤三价锑对甜芥菜生长及生理生化指标的影响。结果表明:低浓度三价锑(≤30mg/kg)对甜芥菜生长没有明显伤害现象,甚至促进生长;而随着锑浓度增加,可造成甜芥菜植株生长缓慢,叶片失绿等现象。低浓度三价锑(≤30mg/kg)对甜芥菜可溶性糖、淀粉、可溶性蛋白质含量造成的危害微弱,但随着浓度的进一步增加危害逐渐加大;三价锑对甜芥菜细胞内的保护酶SOD、POD、CAT活性有显著影响,浓度越高影响越大,三种酶的活性与锑的浓度呈显著负相关关系;甜芥菜根部和叶片都对三价锑产生大量的积累,浓度越高积累的量越大,且叶片积累的量明显高于根部。因此建议在受锑污染的农田上不种植甜芥菜类蔬菜。Effects of soil antimony （ Ⅲ ） on the different concentrations on the growth and physiology and biochemistry characteristic of sweet mustard were studied by using the materials of sweet mustard which can prevent heat in four seasons. Results showed that under low concentration of antimony （ Ⅲ ） （ ≤ 30mg/kg） has no remarkable poison on the growth of sweet mustard, and the growth could be improved. However, with the increase of antimony concentration, negative effect had existed, with shorter and smaller fronds and decreased content of leaf pigments. Low concentration of antimony（ Ⅲ ） （≤30mg/kg） is faintly harmful to sweet mustard＇s soluble sugar, amylum, dissolubility protein. With the increase of antimony concentration, the harm improved gradually. Soil antimony （ Ⅲ ） pollution has remarkable influence on the activities of SOD, POD and CAT, the more concentration the more influence , the activities of this three enzymatic and the concentration of antimony there was a negative correlation. Both roots and leaves of sweet mustard accumulate the antimony （ Ⅲ ）, as the concentration of antimony（ Ⅲ ） increase, the accumulation also increased, and the accumulation of leaves was higher than that of roots. It is proposed that sweet mustard vegetables should not be grown on antimony（ Ⅲ） pollution soil.

关 键 词：锑 甜芥菜 生长 品质 

分 类 号：X131.3[环境科学与工程—环境科学]