Characterizing the solid-solution partitioning coefficient and plant uptake factor of As, Cd, and Pb in California croplands
文献类型：期刊论文
| 作者 | Chen, Weiping; Li, Lianqing; Chang, Andrew C.; Wu, Laosheng; Chaney, Rufus L.; Smith, Richard; Ajwa, Husein |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2009-01 |
| 卷号 | 129期号:1页码:212-220 |
| 关键词 | Risk assessment Probabilistic distribution Trace element Plant uptake |
| 中文摘要 | In risk assessment models, solid-solution partition coefficient, K(d), and plant uptake factor, PUF, are often employed to depict the fate and transport of trace elements in soils. The trustworthiness of risk assessments depends on the reliability of the parameters used. In this study, we examined K(d) and PUF for As, Cd and Pb based on soils and plant tissues obtained from 70 crop production fields in California. We also examined the California portion of a nationwide survey of trace elements in cropland soils conducted by the Soil Survey, Natural Resources Conservation Service, USDA. Results showed that the K(d) and PUF for cropland soils are probabilistic in nature and follow log-normal distributions. The trace element concentration of the soil solution did not appear to be a more appropriate estimator of PUF than the total soil element content. The K(d) used in the CDFA (California Department of Food and Agriculture) study had a much wider range than that could occur in California croplands while the PUF used in the CDFA risk assessment was comparable to patterns observed in the field measurements. (C) 2008 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000261964100027 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21365]  |
| 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 | Chen, Weiping,Li, Lianqing,Chang, Andrew C.,et al. Characterizing the solid-solution partitioning coefficient and plant uptake factor of As, Cd, and Pb in California croplands[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2009,129(1):212-220. |
| APA | Chen, Weiping.,Li, Lianqing.,Chang, Andrew C..,Wu, Laosheng.,Chaney, Rufus L..,...&Ajwa, Husein.(2009).Characterizing the solid-solution partitioning coefficient and plant uptake factor of As, Cd, and Pb in California croplands.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,129(1),212-220. |
| MLA | Chen, Weiping,et al."Characterizing the solid-solution partitioning coefficient and plant uptake factor of As, Cd, and Pb in California croplands".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 129.1(2009):212-220. |
入库方式： OAI收割
来源：生态环境研究中心
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