Interaction between Cd and Pb in the soil-plant system: a case study of an arid oasis soil-cole system

作     者：ZhuanJun ZHAO ZhongRen NAN ZhaoWei WANG YiMing YANG Masayuki SHIMIZU 

作者机构：College of Resource & EnvironmentLanzhou University Department of Soil and Crop ScienceColorado State University 

出 版 物：《Journal of Arid Land》 (干旱区科学（英文版）)

年 卷 期：2014年第6卷第1期

页      面：59-68页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：supported by the National Natural Science Foundation of China(51178209,91025015) the Fundamental Research Funds for the Central Universities in Lanzhou University(lzujbky-2011-66) 

主　　题：heavy metals interaction vegetables oasis soils arid regions Brassica campestris L. 

摘      要：The Hexi Corridor,our study area,is located in Northwest China and is also the most developed area of oasis farming in arid regions of Northwestern ***,the rapid development of metallurgy and chemical industries in this region poses a great threat to the accumulation of heavy metals in *** objectives of this study are(1)to determine the influence of heavy metals on plant growth;(2)to assess the translocation capability of heavy metals in soil-plant system;and(3)to investigate the interaction between heavy *** experiments were conducted on cole(Brassica campestris L.)grown in the arid oasis soils singly and jointly treated with cadmium(Cd)and lead(Pb).Nine treatments were applied into the *** the same planting conditions,three scenarios of Cd,Pb and Cd–Pb were designed to compare the interaction between Cd and *** results showed that the response of cole weights to Cd,Pb and Cd–Pb treatments was slight,while Cd and Pb uptakes in cole were more sensitive to the single effects of Cd and Pb concentration in soils from the lower treatment *** the influence of the single Cd,Pb and joint Cd–Pb treatments,Cd concentrations were lower in the cole roots than in the shoots,while for Pb,the results were *** studies revealed that the interaction of Cd and Pb could weaken the cole’s ability to uptake,concentrate and translocate heavy metals in arid oasis soils.