Transfer model of lead in soil-carrot (Daucus carota L.) system and food safety thresholds in soil
文献类型：期刊论文
| 作者 | Ding, Changfeng1; Li, Xiaogang1; Zhang, Taolin1,2; Wang, Xingxiang1,2,3 |
| 刊名 | ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 34期号:9页码:2078-2086 |
| 关键词 | Soil contamination Metal uptake Plants Prediction models Soil thresholds |
| ISSN号 | 0730-7268 |
| DOI | 10.1002/etc.3031 |
| 通讯作者 | Wang, Xingxiang(xxwang@issas.ac.cn) |
| 英文摘要 | Reliable empirical models describing lead (Pb) transfer in soil-plant systems are needed to improve soil environmental quality standards. A greenhouse experiment was conducted to develop soil-plant transfer models to predict Pb concentrations in carrot (Daucus carota L.). Soil thresholds for food safety were then derived inversely using the prediction model in view of the maximum allowable limit for Pb in food. The 2 most important soil properties that influenced carrot Pb uptake factor (ratio of Pb concentration in carrot to that in soil) were soil pH and cation exchange capacity (CEC), as revealed by path analysis. Stepwise multiple linear regression models were based on soil properties and the pseudo total (aqua regia) or extractable (0.01 M CaCl2 and 0.005M diethylenetriamine pentaacetic acid) soil Pb concentrations. Carrot Pb contents were best explained by the pseudo total soil Pb concentrations in combination with soil pH and CEC, with the percentage of variation explained being up to 93%. The derived soil thresholds based on added Pb (total soil Pb with the geogenic background part subtracted) have the advantage of better applicability to soils with high natural background Pb levels. Validation of the thresholds against data from field trials and literature studies indicated that the proposed thresholds are reasonable and reliable. Environ Toxicol Chem 2015;34:2078-2086. (c) 2015 SETAC |
| 收录类别 | SCI |
| WOS关键词 | SEWAGE-SLUDGE ; PLANT ; VEGETABLES ; METALS ; PB ; CONTAMINATION ; AVAILABILITY ; CADMIUM ; IMPACT ; CHINA |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| WOS类目 | Environmental Sciences ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:000360500600022 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558337 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Wang, Xingxiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Jiangxi Key Lab Ecol Res Red Soil, Ecol Expt Stn Red Soil, Yingtan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Changfeng,Li, Xiaogang,Zhang, Taolin,et al. Transfer model of lead in soil-carrot (Daucus carota L.) system and food safety thresholds in soil[J]. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY,2015,34(9):2078-2086. |
| APA | Ding, Changfeng,Li, Xiaogang,Zhang, Taolin,&Wang, Xingxiang.(2015).Transfer model of lead in soil-carrot (Daucus carota L.) system and food safety thresholds in soil.ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY,34(9),2078-2086. |
| MLA | Ding, Changfeng,et al."Transfer model of lead in soil-carrot (Daucus carota L.) system and food safety thresholds in soil".ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 34.9(2015):2078-2086. |
入库方式： iSwitch采集
来源：南京土壤研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。