The Response and Repairing of Three Kinds of Crops on Xi’an’s Sewage Irrigation Area Soil

作者：H Xin, Z Zhimei, H Lei, L Huan, Zhenji Tian · 发表于：IOP Conference Series Earth and Environmental Science · 年份：2017 · DOI：10.1088/1755-1315/86/1/012014 · 被引用次数：1 · 研究领域：Heavy metals in environment、Environmental Quality and Pollution

This paper focuses on the XiChaZhai village's vegetable soil which is located in the northern suburbs of Xi'an and on its vegetables, thus analyzes the quality of sewage irrigation region soil and its influence on vegetables through the measurement of Cu, Zn, Pb, Cd's content in samples. The results show that the research area soil contains apparently excessive heavy metals, and there exists significant differences of different elements' integrated intensity in soil, the content declines in sequence from Cd, Zn, Pb to Cu. The four heavy metals' contents in sewage irrigation region soil vary greatly from that in non-sewage irrigation region soil(P<0.01). Raphanus sativus and Ottelia acuminate have favorable effects on Cd and Cu's accumulation. Three crops having repairing effects on Xi'an sewage irrigation region soil are Raphanus sativus, Ottelia acuminate and Brassica chinensis , in that order. Different crop tissues differ in the accumulation of heavy metal, the order according as roots, stem and leaves, fruits. Therefore, based on differences of various crops on heavy metals' absorption and translocation, appropriate crops should be scientifically planted in heavy metal contaminated area soil.