Tracing the behaviour of hexachlorobenzene in a paddy soil-rice system over a growth season
文献类型:期刊论文
作者 | Yang Hua ; Zheng Minghui ; Zhu Yongguan |
刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
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出版日期 | 2008 |
卷号 | 20期号:1页码:56-61 |
关键词 | HCB paddy soil rice rhizosphere xylem sap |
英文摘要 | Hexachlorobenzene (HCB), a persistent organic pollutant (POP), has been found in paddy soils. To improve the understanding of HCB contamination in paddy soils, a laboratory simulative study was carried out to investigate the behavior of HCB in a paddy soil and rice plants. This study was divided into three experiments. First, an experiment aimed to examine the evaporation of HCB in paddy soil. In the second experiment, rice was planted in 10 mg/kg HCB contaminated soil and after pot culture at 3, 6, 9, and 27 weeks (at maturity), both soil and plant samplings were scheduled to be sampled. The soil samples comprised rhizosphere soil, nonrhizosphere soil, and unplanted contaminated soil, whereas plant samples included shoots, roots, and rice grains (dehusked). Lastly, in this part, HCB in xylem saps was designed to be examined. The results showed that (1) the HCB translocation from paddy soil to rice by vaporization; (2) the HCB concentration in rice grains was surprisingly high; (3) the observed HCB decrease in rice rhizosphere offers a potential means for in situ HCB degradation; (4) HCB might not be transported along transpiration in rice. |
WOS记录号 | WOS:000252455700008 |
源URL | [http://ir.rcees.ac.cn/handle/311016/22008] ![]() |
专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
推荐引用方式 GB/T 7714 | Yang Hua,Zheng Minghui,Zhu Yongguan. Tracing the behaviour of hexachlorobenzene in a paddy soil-rice system over a growth season[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2008,20(1):56-61. |
APA | Yang Hua,Zheng Minghui,&Zhu Yongguan.(2008).Tracing the behaviour of hexachlorobenzene in a paddy soil-rice system over a growth season.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,20(1),56-61. |
MLA | Yang Hua,et al."Tracing the behaviour of hexachlorobenzene in a paddy soil-rice system over a growth season".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 20.1(2008):56-61. |
入库方式: OAI收割
来源:生态环境研究中心
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