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当前位置: 首页 > 文章 > 褐土含磷量对锌镉吸附与解吸的影响 农业环境科学学报 2009,28 (09) 92-96
Position: Home > Articles > Effects of P Contents on Zn and Cd Adsorption and Desorption in Cinnamon Soil Journal of Agro-Environment Science 2009,28 (09) 92-96

褐土含磷量对锌镉吸附与解吸的影响

作  者：
刘芳;崔海燕;介晓磊;化党领;刘世亮;马闯
单  位：
河南农业大学
关键词：
褐土;磷;锌;镉;吸附;解吸
摘  要：
通过褐土不同浓度的磷培养试验,研究了不同含磷量土壤对锌、镉及锌镉共存时的吸附、解吸影响,以阐述磷与锌镉在土壤系统中的交互作用机制。结果表明,不同含磷量的土壤对不同浓度的锌和镉吸附解吸时,在Zn10条件下,土壤对锌的吸附量先降低后升高,锌解吸量随着土壤中磷含量的增加先升高后降低逐渐趋于平稳。而在Zn80条件下,土壤对锌的吸附量有明显下降趋势,而解吸量随着磷含量的增大先升高后降低,在土壤速效磷含量为89.5mg·kg-1(添加磷水平360mg·kg-1)时解吸量达到最大值;在相同磷水平下,随着外加镉浓度的增大,锌的吸附量明显降低。在Cd3处理下,镉的吸附量随磷水平的增大而减小,而Cd30处理下,镉的吸附量随磷水平的增大而增大;但相同磷水平下,随锌浓度的增大,镉的吸附量都明显降低。镉的解吸量随速效磷含量和锌浓度的增加而增大。
译  名：
Effects of P Contents on Zn and Cd Adsorption and Desorption in Cinnamon Soil
作  者：
LIU Fang1,CUI Hai-yan1,JIE Xiao-lei1,2,HUA Dang-ling1,LIU Shi-liang1,MA Chuang1(1.Henan Agricultural University,Zhengzhou 450002,China;2.Zhengzhou College of Animal Husbandry Engineering,Zhengzhou 450011,China)
关键词：
cinnamon soil;phosphate;zinc;cadmium;adsorption;desorption
摘  要：
To elucidate the interaction mechanism of P and Zn,Cd in soil system,the paper studied on the tested cinnamon soil which added P and incubated to adsorb and desorb Zn and Cd. The results indicated that when different contents P soil adsorb and desorb different concentration Zn and Cd,the Zn desorption amount was increased first and then decreased with P content increased in Zn10 treatment. While in Zn80 treatments,the Zn adsorption amount was decreased significantly with P content increased,and Zn desorption amount was increased first and then decreased,and it reached the maximum when P content was 360 mg·kg-1. Under the same P content treatment,Zn adsorption amount was decreased significantly with added Cd content increased. Cd adsorption amount was decreased with P content increased in Cd3 treatment,but it was increased in Cd30 treatment,and the Cd adsorption amount was decreased notability with Zn content increased,while the Cd desorption amount was increased with P and Zn content increased.

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