文献类型：期刊文献

英文题名：Uptake effects of toxic heavy metals from growth soils into jujube and persimmon of China

作者：Zheng, Yuewen[1] Shen, Danyu[1] Wu, Shutian[1] Han, Yongxiang[1] Li, Shiliang[1] Tang, Fubin[1] Ni, Zhanglin[1] Mo, Runhong[1] Liu, Yihua[1]

第一作者：Zheng, Yuewen

通信作者：Liu, YH[1]

机构：[1]Chinese Acad Forestry, Res Inst Subtrop Forestry, Fuyang 311400, Peoples R China

年份：2018

卷号：25

期号：31

起止页码：31593-31602

外文期刊名：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH

收录：;Scopus(收录号：2-s2.0-85053431453);WOS:【SCI-EXPANDED(收录号:WOS:000447220700075)】；

基金：This study was supported by the Fundamental Research Funds of CAF (CAFYBB2017QC002) and the Special Fund for Forestry Scientific Research in the Public Interest (201304705).

语种：英文

外文关键词：Persimmon; Jujube; Heavy metal; Uptake effect; Prediction model

摘要：Compared with other agricultural plants, information about uptake effects of toxic heavy metals from growth soils into persimmon and jujube are scarce. In this study, the single and comprehensive uptake effects of five toxic heavy metals (Pb, As, Cd, Cr, and Hg) between the two fruits and their growth soils were investigated. The results showed that the average concentrations of heavy metals in the two fruits were found to be 30 (Pb), 6.6 (As), 2.3 (Cd), 38 (Cr), and 0.33 (Hg) mu g/kg, respectively. The average concentrations of heavy metals in their growth soils were 26.31 (Pb), 9.63 (As), 0.12 (Cd), 57.6 (Cr), and 0.049 (Hg) mg/kg, respectively. An uptake effect was observed for the two fruits. The values of Nemerow pollution index (NPI) in the two fruits and their growth soils were 0.10 and 0.55, respectively. The average bioconcentration factor (BCF) values of Pb, As, Cd, Cr, and Hg in the two fruits were 0.0012, 0.00075, 0.021, 0.00077, and 0.012, respectively. Based on the residue levels of toxic heavy metals in the growth soils and soil parameters, the prediction models for NPI and BCF were established, with the adjusted regression coefficients of 0.65 (NPI) and 0.81 (BCF). The contribution rates of different soil parameters to NPI were 21.7% (OC), 16.1% (Pb), 17.1% (Cr), 19.8% (Cd), and 25.4% (As), respectively. The contribution rates of different soil parameters to BCF were 10.2% (OC), 9.4% (Cr), and 80.4% (Cd), respectively.