| 一种耦合化学反应的溶质运移模型的应用 |
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| 引用本文： | 张丛志,徐绍辉,张佳宝.一种耦合化学反应的溶质运移模型的应用[J].土壤学报,2006,43(6):905-910. |
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| 作者姓名： | 张丛志 徐绍辉 张佳宝 |
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| 作者单位： | 1. 中国科学院封丘农业生态国家实验站,河南,封丘,453300;土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008
2. 青岛大学环境科学与工程系,山东,青岛,266071 |
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| 基金项目： | 国家重点实验室基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | 土壤中的化学作用对溶质运移具有重要影响．离子交换和络合反应是土壤中常见的化学反应。利用室内土柱出流实验对这两种作用下的土壤溶质运移进行了探讨，用CXTFIT软件模拟了不考虑化学反应时的常规溶质运移；用水文地球化学模拟软件PHREEQC进行了耦合离子交换和络合反应运移模型的模拟。结果表明，耦合模型的模拟精度更高，从而也初步证明了耦合模型是成功的。
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| 关 键 词： | 数学模型 离子交换 络合反应 溶质运移 |
| 收稿时间： | 2006-01-04 |
| 修稿时间： | 2006-01-042006-08-12 |
APPLICATION OF A SOLUTE TRANSPORT MODEL COUPLED WITH CHEMICAL REACTION |
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| Zhang Congzhi,Xu Shaohui and Zhang Jiabao.APPLICATION OF A SOLUTE TRANSPORT MODEL COUPLED WITH CHEMICAL REACTION[J].Acta Pedologica Sinica,2006,43(6):905-910. |
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| Authors: | Zhang Congzhi Xu Shaohui and Zhang Jiabao |
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| Institution: | 1 State Experimental Station for Agro-Ecology , Chinese Academy of Siences , Fengqiu, Henan 453300, China;2 State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soll Science, Chinese Academy of Sciences, Nanjing 210008, China;3 Department of Environmental Science and Engineering , Qingdao University, Qingdao , Shandong 266071,China |
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| Abstract: | Chemical reaction in soil solution has some important effects on solute transport.Ion exchange and complexation reaction are the common chemical reactions observed in soil.An indoor leaching experiment was conducted to explore effects of the two reactions on solute transport.The traditional convection-dispersion equation(CDE) regardless of chemical reactions was simulated by CXTFIT,and a model coupled with ion exchange and complexation reaction was simulated by PHREEQC,a hydrologic geochemical software.Results show that the coupled model is more precise in simulation,which indicates that the coupled model is successful. |
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| Keywords: | Mathematical model Ion exchange Complexation reaction Solute transport |
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