Spatial prediction of heavy metal pollution for soils in peri-urban beijing, china based on fuzzy set theory
文献类型：期刊论文
| 作者 | Tan Man-Zhi; Xu Fang-Ming; Chen Jie; Zhang Xue-Lei; Chen Jing-Zhong |
| 刊名 | Pedosphere
 |
| 出版日期 | 2006-10-01 |
| 卷号 | 16期号:5页码:545-554 |
| 关键词 | Continuous classification Fuzzy c-means Heavy metal Soil pollution Spatial prediction |
| ISSN号 | 1002-0160 |
| 通讯作者 | Chen jie(jchen@issas.ac.cn) |
| 英文摘要 | Fuzzy classification combined with spatial prediction was used to assess the state of soil pollution in the peri-urban beijing area. total concentrations of as, cr, cd, hg, and pb were determined in 220 topsoil samples (0-20 cm) collected using a grid design in a study area of 2 600 km(2). heavy metal concentrations were grouped into three classes according to the optimum number of classes and fuzziness exponent using the fuzzy c-mean (fcm) algorithm. membership values were interpolated using ordinary kriging. the polluted soils of the study area induced by the measured heavy metals were concentrated in the northwest corner and eastern part, especially the southeastern part close to the urban zone, whereas the soils free of pollution were mainly distributed in the southwestern part. the soils with potential risk of heavy metal pollution were located in isolated spots mainly in the northern part and southeastern corner of the study region. the fcm algorithm combined with geostatistical techniques, as compared to conventional single geostatistical kriging methods, could produce a prediction with a quantitative uncertainty evaluation and higher reliability. successful prediction of soil pollution achieved with fcm algorithm in this study indicated that fuzzy set theory had great potential for use in other areas of soil science. |
| WOS关键词 | K-MEANS ; CLASSIFICATION |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000240820200001 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379131 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chen Jie |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chengdu Univ Technol, Chengdu 610059, Peoples R China 4.Nanjing Stn Soil & Fertilizer, Nanjing 210036, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan Man-Zhi,Xu Fang-Ming,Chen Jie,et al. Spatial prediction of heavy metal pollution for soils in peri-urban beijing, china based on fuzzy set theory[J]. Pedosphere,2006,16(5):545-554. |
| APA | Tan Man-Zhi,Xu Fang-Ming,Chen Jie,Zhang Xue-Lei,&Chen Jing-Zhong.(2006).Spatial prediction of heavy metal pollution for soils in peri-urban beijing, china based on fuzzy set theory.Pedosphere,16(5),545-554. |
| MLA | Tan Man-Zhi,et al."Spatial prediction of heavy metal pollution for soils in peri-urban beijing, china based on fuzzy set theory".Pedosphere 16.5(2006):545-554. |
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来源：中国科学院大学
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