Limestone dosage response of cadmium phytoavailability minimization in rice: A trade-off relationship between soil pH and amorphous manganese content
文献类型：期刊论文
| 作者 | Yang, Yang; Li, Yanling; Wang, Meie; Chen, Weiping ; Dai, Yating
|
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2021-02-05 |
| 卷号 | 403页码:- |
| 关键词 | Cadmium behavior Trade-off relationship Dynamic interaction Limestone Paddy soil |
| ISSN号 | 0304-3894 |
| 英文摘要 | Limestone shows great potential to reduce the production of cadmium (Cd)-contaminated rice in acidic paddy soils, but has generated uncertainty effects. We conducted batch sorption and greenhouse experiments to investigate optimal conditions of pH and amorphous manganese content (M-nox) in limestone treated-soil for suppressing the Cd uptake by rice plants. The adsorption/desorption behavior of Cd in a soil/limestone mixture was dominated by the composition and density of sorption sites, followed by sorption conditions, which were mainly influenced by soil pH and exchangeable Ca2+. Interactions among soil factors were influenced both by the limestone effects and plant responses. The Cd uptake of rice plants did not matched to the doses of limestone applied. The increase in pH and decrease in M-nox following higher dosages of limestone treatment might produce contradictory effects on rice Cd uptake. We proposed a trade-off model to demonstrate how did the interactions of soil pH and M-nox affect the rice Cd uptake. To minimize the accumulation of Cd in rice grain harvested from acidic paddy soils, limestone was applied at 0.25 % to achieve an optimal pH of 6.5 and a Mnox of 95 mg kg(-1). |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45502]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yang,Li, Yanling,Wang, Meie,et al. Limestone dosage response of cadmium phytoavailability minimization in rice: A trade-off relationship between soil pH and amorphous manganese content[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,403:-. |
| APA | Yang, Yang,Li, Yanling,Wang, Meie,Chen, Weiping,&Dai, Yating.(2021).Limestone dosage response of cadmium phytoavailability minimization in rice: A trade-off relationship between soil pH and amorphous manganese content.JOURNAL OF HAZARDOUS MATERIALS,403,-. |
| MLA | Yang, Yang,et al."Limestone dosage response of cadmium phytoavailability minimization in rice: A trade-off relationship between soil pH and amorphous manganese content".JOURNAL OF HAZARDOUS MATERIALS 403(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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