Dynamic interactions between soil cadmium and zinc affect cadmium phytoavailability to rice and wheat: Regional investigation and risk modeling
文献类型：期刊论文
| 作者 | Yang, Yang; Li, Yanling; Chen, Weiping ; Wang, Meie; Wang, Tianqi; Dai, Yating
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| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2020-12 |
| 卷号 | 267页码:1-10 |
| 关键词 | Cadmium-zinc interaction Field investigation Free-ion activity model Rice Wheat |
| ISSN号 | 0269-7491 |
| 英文摘要 | Characterizing the interactions between Cd and Zn with respect to the soil soluble Cd and crop Cd uptake allows the development of risk-based approaches to the performance of grain crops. By means of a threeyear survey of 358 rice fields and 206 wheat fields across China, this study investigated the effect of Cd-Zn interactions on the phytoavailability of Cd to rice and wheat. The interactive nature between the Cd:Zn ratio and pH of soil affected crop Cd uptake, and the resulting grain Cd intake risk, were examined by the Free-Ion Activity-based model and probability analysis. In highly acidic rice soils (pH 5.9), soil Zn had no effect on rice Cd uptake, whereas, under near-neutral conditions (pH 5.9), a site-specific influence of soil Zn on grain Cd concentration was found. Soil Zn could inhibit Cd uptake and translocation by the plant in soil-wheat system when the soil Cd:Zn ratio decreased to 0.0083 and lower. Rice grain poses a significant health risk to local consumers due to its high Cd accumulation and its low Zn accumulation. In order to reduce the health risks from dietary Cd to local consumers, approximately 63.9% of the rice fields and 30.5% of the wheat fields require strategies ameliorating soil acidity in rice soils and increasing Zn concentrations in wheat soils. (c) 2020 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44270]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yang, Yang,Li, Yanling,Chen, Weiping,et al. Dynamic interactions between soil cadmium and zinc affect cadmium phytoavailability to rice and wheat: Regional investigation and risk modeling[J]. ENVIRONMENTAL POLLUTION,2020,267:1-10. |
| APA | Yang, Yang,Li, Yanling,Chen, Weiping,Wang, Meie,Wang, Tianqi,&Dai, Yating.(2020).Dynamic interactions between soil cadmium and zinc affect cadmium phytoavailability to rice and wheat: Regional investigation and risk modeling.ENVIRONMENTAL POLLUTION,267,1-10. |
| MLA | Yang, Yang,et al."Dynamic interactions between soil cadmium and zinc affect cadmium phytoavailability to rice and wheat: Regional investigation and risk modeling".ENVIRONMENTAL POLLUTION 267(2020):1-10. |
入库方式： OAI收割
来源：生态环境研究中心
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