Chunilall Viren, Kindness Andrew, Jonnalagadda Sreekanth B
School of Chemistry, Westville Campus, University of KwaZulu-Natal, Durban, South Africa.
J Environ Sci Health B. 2006;41(3):297-307. doi: 10.1080/03601230500357447.
The elemental uptake and the growth response of Spinacia oleracea (spinach) to the soil contaminated with the South African bituminous coal mine dump soil, viz. 0%, 5%, 15%, and 25% w/w, was investigated. The contaminated soils were analyzed for pH, cation exchange capacity (CEC), soil organic matter (SOM), and concentrations of selected heavy metals. The pH, SOM, and CEC decreased with an increase in contamination indicating the acidic nature of coal mine soil and the raise in the soil binding sites. The distribution of Fe, Mn, Ni, Cd, and Pb in the in roots and leaves of the plants was determined in two stages of plant growth. Spinach showed high accumulation of Fe and increased levels of Ni and Cd with an increase in contamination. No plant growth was recorded with 25% contamination.
研究了菠菜对受南非烟煤矿渣污染土壤（即0%、5%、15%和25%重量/重量）的元素吸收及生长响应。分析了污染土壤的pH值、阳离子交换容量（CEC）、土壤有机质（SOM）以及选定重金属的浓度。随着污染程度增加，pH值、SOM和CEC下降，表明煤矿土壤呈酸性且土壤结合位点增加。在植物生长的两个阶段测定了铁、锰、镍、镉和铅在植物根和叶中的分布。随着污染程度增加，菠菜表现出铁的高积累以及镍和镉含量的增加。25%污染水平下未记录到植物生长。
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