| 有机化合物KOC片段常数估算模型的误差与稳健性分析 |
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| 引用本文： | 朴海善,陶澍,胡海瑛,卢晓霞,曹军.有机化合物KOC片段常数估算模型的误差与稳健性分析[J].环境科学,1999,20(4):28-32. |
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| 作者姓名： | 朴海善 陶澍 胡海瑛 卢晓霞 曹军 |
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| 作者单位： | 北京大学城市与环境学系 |
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| 基金项目： | 国家自然科学基金,国家杰出青年基金 |
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| 摘 要： | 分析了估算有机化合物吸着系数的片段常数模型的误差，并用４种不同方法检验了估算有机化合物吸纱数的片段常数模型的稳健性。重复随机抽取单一合物，逐一抽取估算值与实测值差别较大的个别化合物，重复随机抽取５０个化合物以及逐一抽取特定化合物类别。
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| 关 键 词： | 吸着系数 片段常数法 稳健性 有机化合物 土壤 |
| 收稿时间： | 1998/12/4 0:00:00 |
Robustness of A KOC Prediction Model Basedon Fragment Constants |
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| Piao Haishan,Tao Shu,Hu Haiying,Lu Xiaoxia and Cao Jun.Robustness of A KOC Prediction Model Basedon Fragment Constants[J].Chinese Journal of Environmental Science,1999,20(4):28-32. |
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| Authors: | Piao Haishan Tao Shu Hu Haiying Lu Xiaoxia and Cao Jun |
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| Institution: | Department of Urban and Environmental Sciences, Peking University, Beijing 100871 China;Department of Urban and Environmental Sciences, Peking University, Beijing 100871 China;Department of Urban and Environmental Sciences, Peking University, Beijing 100871 China;Department of Urban and Environmental Sciences, Peking University, Beijing 100871 China;Department of Urban and Environmental Sciences, Peking University, Beijing 100871 China |
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| Abstract: | Modified jackknife tests were applied to examine the robustness of a prediction model for organic carbon normalized sorption coefficient (KOC) based on fragment constants and structural correction factors. Similar trends were observed using various kinds of jackknife tests. Fairly high robustness of the model was demonstrated by the calculated jackknife coefficients of determination (R2). The highest variation in the jackknife coefficient occurred when a group of chemicals within the same category was eliminated from the data set. |
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| Keywords: | sorption coefficient KOC fragment constant jackknife test robustness |
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