| 轻度污染下土壤系统自净过程的简化模型初探 |
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| 引用本文： | 王晓瑞,张凡,周生路,吴绍华,张红富.轻度污染下土壤系统自净过程的简化模型初探[J].安徽农业科学,2007,35(32):10378-10380. |
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| 作者姓名： | 王晓瑞 张凡 周生路 吴绍华 张红富 |
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| 作者单位： | 南京大学地理与海洋科学学院,江苏南京,210089 |
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| 基金项目： | 国家大学生创新训练计划项目 |
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| 摘 要： | 通过建立简单的数学模型来描述土壤在轻度污染下的自净机制。结果表明,当外界干扰未超过自我恢复的环境容量时,土壤在自净因子的作用下逐渐恢复趋于平衡位置。模型解的形式显示了土壤的自净作用有3种情形:①弱自净力情形(小阻尼):nk;③自净作用等于临界值情形(临界阻尼):n=k。
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| 关 键 词： | 土壤 自净 轻度污染 模型 |
| 文章编号： | 0517-6611（2007）32-10378-03 |
| 修稿时间： | 2007-07-27 |
Study on Self-purification Model of Soil System under Low-grade Contamination |
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| WANG Xiao-rui et al.Study on Self-purification Model of Soil System under Low-grade Contamination[J].Journal of Anhui Agricultural Sciences,2007,35(32):10378-10380. |
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| Authors: | WANG Xiao-rui |
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| Institution: | School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, Jiangsu 210089 |
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| Abstract: | The self-purification mechanism of soil system under low-grade contamination is described by founding a simplified model.The results showed that there are three kinds of situations on self-purification function.Firstly,weak self-purification situation(weak damping): nk;Thirdly,critical self-purification situation(critical damping): n=k. |
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| Keywords: | Soil Self-purification Low-grade contamination Model |
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