| 三峡库区消落区紫色土砷吸附-解吸特征研究 |
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| 引用本文： | 邹强,刘芳,杨剑虹. 三峡库区消落区紫色土砷吸附-解吸特征研究[J]. 广西农业科学, 2009, 40(3): 266-270 |
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| 作者姓名： | 邹强 刘芳 杨剑虹 |
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| 作者单位： | 西南大学资源与环境学院,重庆,400715 |
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| 基金项目： | 国家科技部科技支撑项目 |
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| 摘 要： | 采用经典的批培养法研究三峡库区消落区紫色土中砷的吸附一解吸特征。结果表明，三种类型紫色土对砷的吸附一解吸等温曲线相似，等温吸附均可用Langmuir方程描述；三种紫色土对砷的最大吸附量（Qm）依次为：酸性紫色土〉中性紫色土〉石灰性紫色土；酸性紫色土和中性紫色土对砷的固定和缓冲能力均强于石灰性紫色土；三种紫色土吸附砷的解吸量分别与相应的吸附量（q）呈显著的指数相关，其相关系数在0．9051～0．9142之间，均达到极显著水平。
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| 关 键 词： | 紫色土 砷 吸附 解吸 三峡库区 |
Characteristics of adsorption-desorption of arsenic in purple soils in water level fluctuation zone in the Three Gorges Reservoir Area |
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| ZOU Qiang,LIU Fang,YANG Jian-hong. Characteristics of adsorption-desorption of arsenic in purple soils in water level fluctuation zone in the Three Gorges Reservoir Area[J]. Guangxi Agricultural Sciences, 2009, 40(3): 266-270 |
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| Authors: | ZOU Qiang LIU Fang YANG Jian-hong |
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| Affiliation: | College of Resources and Environment;Southwest University;Chongqing 400715;China |
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| Abstract: | The characteristics of adsorption-desorption of arsenic in purple soils were studied with the batch tech-nique in water level fluctuation zone in the Three Gorges Reservoir Area.The results showed that the isothermal curves of adsorption-desorption of arsenic in acid,neutral,and calcareous purple soils were similar to each other,the isothermal ad-sorption of arsenic was conformed to the Langmuir equation.The maximum adsorption quantities for arsenic in three types of purple soil were the acid purple soil > ... |
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| Keywords: | purple soil arsenic adsorption desorption Three Gorges Reservior Area |
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