| 腐殖酸对矿物结合汞活性的影响研究Ⅱ．腐殖酸对矿物结合汞挥发活性影响的动态特征 |
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| 引用本文： | 姚爱军,青长乐,牟树森.腐殖酸对矿物结合汞活性的影响研究Ⅱ．腐殖酸对矿物结合汞挥发活性影响的动态特征[J].土壤学报,2000,37(2). |
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| 作者姓名： | 姚爱军 青长乐 牟树森 |
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| 作者单位： | 1. 中国科学院南京土壤研究所，南京 210008
2. 西南农业大学资环学院，重庆 400716 |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | 汞的挥发动力学表明：腐殖酸对矿物结合汞活性兼具抑制与活化的双重效应，突出表现为对矿物结合汞的挥发具有先期抑制与后期活化最后趋于稳定的动态影响特征，其效应具长期性渐变特点。不同腐殖酸针对不同矿物类型结合汞，其作用速率与强度不同。
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| 关 键 词： | 腐殖酸 矿物结合汞 挥发动态特征 |
EFFECTS OF HUMUS ON THE ACTIVITY OF MINERAL BOUND Hg Ⅱ. KINETIC CHARACTERISTICS OF THE INFLUENCE OF HUMUS ON THE VOLATILITY OF MINERAL BOUND Hg |
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| YAO Ai-jun,QING Chang-le,Mou Shu-sen.EFFECTS OF HUMUS ON THE ACTIVITY OF MINERAL BOUND Hg Ⅱ. KINETIC CHARACTERISTICS OF THE INFLUENCE OF HUMUS ON THE VOLATILITY OF MINERAL BOUND Hg[J].Acta Pedologica Sinica,2000,37(2). |
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| Authors: | YAO Ai-jun QING Chang-le Mou Shu-sen |
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| Abstract: | The kinetics of Hg volatilization indicated that humus (including fulvic acid, brown humic acid and grey humic acid) have either suppressing or activating effect on the volativity of mineral bound Hg. Initially the volatilization of mineral bound Hg is depressed and then is promoted, but eventually it turns into a stable state. The effect is characterized by long term and gradual change. Various kinds of humic acids have different rate and intensity to depress or promote the volatilization of mineral bound Hg. The type of mineral bound to the Hg is the internal factor that will determine the progress of the volatilization reaction. |
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| Keywords: | Humus acids Kinetic influencing characteristics Mineral bound Hg |
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