| 不同改良剂对铬胁迫下土壤—小白菜系统的影响 |
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| 引用本文： | 刘冰,王玉军,刘丽,刘元鹏,杨林.不同改良剂对铬胁迫下土壤—小白菜系统的影响[J].山东农业大学学报(自然科学版),2011,42(3). |
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| 作者姓名： | 刘冰 王玉军 刘丽 刘元鹏 杨林 |
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| 作者单位： | 山东农业大学资源与环境学院,山东泰安,271018 |
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| 摘 要： | 本研究以小白菜为材料,采用盆栽试验研究了石灰、活性炭及石灰+活性炭处理对铬胁迫下小白菜铬吸收量及对铬污染土壤中铬形态分布的影响,旨在阐明改良剂抑制重金属铬对小白菜的毒害作用机理。其研究结果表明:(1)在铬污染土壤中,小白菜不同部位铬含量顺序依次为根>叶>叶柄,改良剂能有效抑制小白菜对土壤中铬的吸收,不同改良剂在不同铬处理下对小白菜吸收铬的抑制效果不同。(2)形态提取分析表明,施用改良剂处理使土壤铬的水溶态、可交换态和碳酸盐结合态减少,而有机结合态和残渣态增加,从而降低小白菜对土壤中铬的吸收。
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| 关 键 词： | 铬污染土壤 石灰 活性炭 小白菜 改良剂修复 |
EFFECTS OF DIFFERENT AMELIORANTS ON THE SOIL-PAKCHOI SYPETIOLE UNDER Cr STRESS |
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| LIU Bing,WANG Yu-jun,LIU Li,LIU Yuan-peng,YANG Lin.EFFECTS OF DIFFERENT AMELIORANTS ON THE SOIL-PAKCHOI SYPETIOLE UNDER Cr STRESS[J].Journal of Shandong Agricultural University,2011,42(3). |
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| Authors: | LIU Bing WANG Yu-jun LIU Li LIU Yuan-peng YANG Lin |
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| Institution: | LIU Bing,WANG Yu-jun*,LIU Li,LIU Yuan-peng,YANG Lin(Resource and Environmental College,Shandong Agricultural University,Tai'an 271018,China) |
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| Abstract: | This study makes use of pakchoi as the materials,and uses pot-testing to research on the effect of the application of lime,activated carbon and the co-application of lime and activated carbon on pakchoi's biochemical conditions,Cr absorption amount and the morphological distribution of Cr.This study aims at explaining the mechanism of ameliorants in preventing Cr poison to the pakchoi.The results show that(1)Cr contamination in the soil,the order of chromium content in different parts of Pakchoi is roots> l... |
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| Keywords: | Cr contaminated soil lime activated carbon pakchoi ameliorant remediation |
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