Improving prediction of metal uptake by chinese cabbage (brassica pekinensis l.) based on a soil-plant stepwise analysis
文献类型：期刊论文
| 作者 | Zhang, Sha1,2,3; Song, Jing1,2; Gao, Hui1,2; Zhang, Qiang1,4,5; Lv, Ming-Chao1,2; Wang, Shuang1; Liu, Gan1; Pan, Yun-Yu1,2; Christie, Peter6; Sun, Wenjie3 |
| 刊名 | Science of the total environment
 |
| 出版日期 | 2016-11-01 |
| 卷号 | 569页码:1595-1605 |
| 关键词 | Bioavailability Chinese cabbage Metal uptake Ph Model |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2016.07.007 |
| 通讯作者 | Song, jing(jingsong@issas.ac.cn) |
| 英文摘要 | It is crucial to develop predictive soil-plant transfer (spt) models to derive the threshold values of toxic metals in contaminated arable soils. the present study was designed to examine the heavy metal uptake pattern and to improve the prediction of metal uptake by chinese cabbage grown in agricultural soils with multiple contamination by cd, cu, ni, pb, and zn. pot experiments were performed with 25 historically contaminated soils to determine metal accumulation in different parts of chinese cabbage. different soil bioavailable metal fractions were determined using different extractants (0.43 m hno3, 0.01 m cacl2, 0.005 m dtpa, and 0.01 m lwmoas), soil moisture samplers, and diffusive gradients in thin films (dgt), and the fractions were compared with shoot metal uptake using both direct and stepwise multiple regression analysis. the stepwise approach significantly improved the prediction of metal uptake by cabbage over the direct approach. strongly ph dependent or nonlinear relationships were found for the adsorption of root surfaces and in root-shoot uptake processes. metals were linearly translocated from the root surface to the root. therefore, the nonlinearity of uptake pattern is an important explanation for the inadequacy of the direct approach in some cases. the stepwise approach offers an alternative and robust method to study the pattern of metal uptake by chinese cabbage (brassica pekinensis l.). (c) 2016 published by elsevier b.v. |
| WOS关键词 | DISSOLVED ORGANIC-MATTER ; CONTAMINATED SOILS ; LOLIUM-PERENNE ; CADMIUM UPTAKE ; HEAVY-METALS ; HUMIC-ACID ; ROOTS ; EXTRACTION ; BIOAVAILABILITY ; ACCUMULATION |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000382269000155 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375703 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Song, Jing |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Southern Methodist Univ, Dallas, TX USA 4.Guizhou Normal Univ, Guiyang 550001, Peoples R China 5.Guizhou Acad Environm Sci & Designing, Guiyang 550000, Peoples R China 6.Agrifood & Biosci Inst, Agrienvironm Branch, Belfast, Antrim, North Ireland |
| 推荐引用方式 GB/T 7714 | Zhang, Sha,Song, Jing,Gao, Hui,et al. Improving prediction of metal uptake by chinese cabbage (brassica pekinensis l.) based on a soil-plant stepwise analysis[J]. Science of the total environment,2016,569:1595-1605. |
| APA | Zhang, Sha.,Song, Jing.,Gao, Hui.,Zhang, Qiang.,Lv, Ming-Chao.,...&Sun, Wenjie.(2016).Improving prediction of metal uptake by chinese cabbage (brassica pekinensis l.) based on a soil-plant stepwise analysis.Science of the total environment,569,1595-1605. |
| MLA | Zhang, Sha,et al."Improving prediction of metal uptake by chinese cabbage (brassica pekinensis l.) based on a soil-plant stepwise analysis".Science of the total environment 569(2016):1595-1605. |
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来源：中国科学院大学
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