Kumar Vinod, Chopra A K
Agro-ecology and Pollution Research Laboratory, Department of Zoology and Environmental Science, Faculty of Life Sciences, Gurukula Kangri University, Haridwar, 249404, Uttarakhand, India,
Bull Environ Contam Toxicol. 2014 Jan;92(1):103-8. doi: 10.1007/s00128-013-1142-0. Epub 2013 Nov 7.
A pot experiment was conducted to study the accumulation and translocation of metals in French bean (Phaseolus vulgaris L.). Plants were grown in soil amended with up to 100 % sewage sludge. Significant (p < 0.01) changes to soil characteristics were observed. The maximum growth of P. vulgaris was noted in the treatment with 40 % of sewage sludge. Metal concentrations were significantly (p < 0.05) higher in P. vulgaris after sewage sludge amendment where Fe > Zn > Cd > Cu > Cr > Pb. The translocation for Fe and Zn was in the order of leaves > shoot > root > fruits, for Cd, shoot > root > leaves > fruits, for Cu and Pb shoot > leaves > root > fruits and for Cr root > shoot > leaves > fruits of P. vulgaris. All accumulated metal concentrations except Cd in the fruit were below the FAO/WHO standard limits. Thus, the amendment of agricultural soil by sewage sludge might be feasible. However, a regular monitoring of metal levels in agricultural products is recommended to prevent their accumulation in the food chain.
进行了一项盆栽试验，以研究菜豆（Phaseolus vulgaris L.）中金属的积累和转运情况。将植物种植在添加了高达100%污水污泥的土壤中。观察到土壤特性有显著（p < 0.01）变化。在添加40%污水污泥的处理中，菜豆的生长量最大。添加污水污泥后，菜豆中的金属浓度显著（p < 0.05）更高，其中铁>锌>镉>铜>铬>铅。菜豆中铁和锌的转运顺序为叶>茎>根>果实，镉为茎>根>叶>果实，铜和铅为茎>叶>根>果实，铬为根>茎>叶>果实。除果实中的镉外，所有积累的金属浓度均低于粮农组织/世界卫生组织的标准限值。因此，用污水污泥改良农业土壤可能是可行的。然而，建议定期监测农产品中的金属含量，以防止其在食物链中积累。
