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Application of Different Composite Index Methods in the Evaluation of Soil Heavy Metal Pollution

  • Yingchao Niu
  • Zhongfa ZhouEmail author
  • Denghong Huang
  • Xu Yuan
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 699)

Abstract

In this paper, evaluation of southeastern guizhou province some important tea-producing county soil heavy metal pollution adopts Nemerow Pollution Index, Yao Index and Mixed Weighted Model of three different composite index methods, and compares the suitability of three methods. Nemerow Pollution Index adopts arithmetic mean of subindex to improve the contribution rate of the most polluted elements and undermines the contribution of each partial effect on comprehensive pollution. Yao Index uses the ratio of index of the maximum and arithmetic mean value as weight, and diminishes the status of the serverest pollution index. But it ignored the partial contribution to the effect of comprehensive pollution. Mixed Weighted Model has good sensitivity, and it can better differentiate the degree of soil heavy metal pollution and reflect the real situation of soil environmental quality. According to the calculation results of three different comprehensive index methods, the analysis results of soil heavy metals comprehensive pollution index are obtained by Geographic Information Systems and IDW. Results show that high concentrations of heavy metals in the east and northeast of the study area.

Keywords

Comprehensive index method The evaluation of soil heavy metal pollution GIS Comparison and analysis Beidou 

Notes

Acknowledgments

In this paper, the research was sponsored by Science and technology plan of Guizhou province Mountain high efficiency agriculture industrial park development and application of intelligent management system based on Beidou satellite (GY[2015] No. 3001); Major science and technology projects in Guizhou Province Study and Application on the quality safety evaluation, detection and traceable key technologies of tea and vegetables in Guizhou province ([2013] No. 6024); Major applied basic research project of Guizhou Province Study on the ecological restoration and optimal control of eco-economic system of Karst rocky desertification (JZ[2014] No. 20020-1); Science and technology plan of Guizhou province The research and countermeasures of heavy metal content and the tea garden soil heavy metals in Guizhou province (SY[2011] No. 3092).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • Yingchao Niu
    • 1
    • 2
  • Zhongfa Zhou
    • 1
    • 2
    Email author
  • Denghong Huang
    • 1
    • 2
  • Xu Yuan
    • 3
  1. 1.School of Karst ScienceGuizhou Normal UniversityGuiyangChina
  2. 2.The State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou ProvinceGuiyangChina
  3. 3.Guizhou Provincial Supervision and Testing Center for Agricultural Product Quality SupervisionGuiyangChina

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