| 土壤质地、pH、有机质含量对镉存在形态的影响及其机理研究 |
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| 引用本文： | 叶俊文,金耀铭,李兴杰,奥岩松.土壤质地、pH、有机质含量对镉存在形态的影响及其机理研究[J].上海交通大学学报(农业科学版),2019(3):29-33. |
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| 作者姓名： | 叶俊文 金耀铭 李兴杰 奥岩松 |
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| 作者单位： | 上海交通大学农业与生物学院;上海市青浦区金泽镇农业综合服务中心 |
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| 基金项目： | 上海市科技兴农重点攻关项目[沪农科攻字(2014)第5-2号] |
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| 摘 要： | 在不同土壤质地、pH、有机质含量条件下,研究镉可交换态含量随时间的变化规律。结果表明,镉添加进土壤后,经过40～60 d可被土壤吸附和固定,并进入稳定状态。随着土壤粘粒占比的增大,土壤中镉可交换态含量显著降低;随着土壤pH的升高,土壤中镉可交换态含量总体呈降低趋势;随着有机质含量的增大,土壤中镉可交换态含量显著降低。
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| 关 键 词： | 镉 形态变化 土壤质地 pH 有机质 |
| 收稿时间： | 2017/12/28 0:00:00 |
Effects of soil texture,pH and organic matter contents on the forms of cadmium and its mechanism |
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| YE Jun-wen,JIN Yao-ming,LI Xing-jie and AO Yan-song.Effects of soil texture,pH and organic matter contents on the forms of cadmium and its mechanism[J].Journal of Shanghai Jiaotong University (Agricultural Science),2019(3):29-33. |
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| Authors: | YE Jun-wen JIN Yao-ming LI Xing-jie and AO Yan-song |
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| Institution: | School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China,Integrated Agricultural Service Center, Jinze Town, Qingpu District, Shanghai 201718, China,School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China and School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | Under different soil texture,pH and organic matter content,the content of exchangeable cadmium with time was studied.The results showed that after cadmium being added into the soil,it could be adsorbed and fixed by the soil after 40-60 days and entered a stable state.With the increase of soil clay content,the content of exchangeable cadmium in soil decreased significantly.With the increase of soil pH,the content of exchangeable cadmium in soil decreased generally.With the increase of the amount of organic matter,the content of soil exchangeable cadmium was significantly reduced. |
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| Keywords: | Cd form change soil texture pH organic matter |
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