Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (20): 131-136.doi: 10.11924/j.issn.1000-6850.casb15020051

Special Issue: 土壤重金属污染

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Correlation Between Particle Fractal Dimension and Heavy Metal Content in River Sediment: A Case Study in Tangliu Pond of Nandu River in Hainan Island

Liu Yongbing1, Li Xiang1, Zhuo Zhiqing2, Liu Yongjie3, Cheng Yanjun1, Zhang Jianzhong1, Zang Zhenyuan1, Hong Wenliang4   

  1. (1Environmental Protection Research Institute of Light Industry/Key Laboratory of Research and Application of Contaminated Soil Ecological Remediation Technology, Beijing 100089; 2College of Geography and Tourism, Hainan Normal University, Haikou 571158; 3Forestry College, Shanxi Agricultural University, Taigu Shanxi 030801; 4The Leading Group Office of Land Consolidation Project of Haikou, Haikou 570312)
  • Received:2015-02-06 Revised:2015-07-06 Accepted:2015-06-12 Online:2015-07-28 Published:2015-07-28

Abstract: In order to illustrate the quantitative correlation among heavy metal content, particle fractal dimension and organic matter content, particle fractal dimension features of 52 sediment samples in Tangliu Pond of Nandu River were evaluated using statistical analysis and soil fractal dimension analysis. Correlation analysis, principal component analysis and regression model analysis were also conducted. According to the results, the investigated sedimentary particle fractal dimension ranged from 2.453 to 2.971, with different mean values due to different particle types. There were obviously positive correlations between heavy metal content and organic matter content, the fractal dimensions of very fine sand and fine sand, while there were negative correlations between heavy metal content and the fractal dimensions of clay and silt. Particle size had very small influence on contents of Zn and Hg. Organic matter and clay fractal dimension could be considered as key indicators characterizing the properties of the sediment. Content of heavy metal (except Zn and Hg) had a linear correlation with organic matter, while had a binary logistic correlation with organic matter content and clay fractal dimension. The results have great significance for the study on the properties of the sediment.