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Optimizing the rate of contribution of different sources in sediment yield of loess areas(Case study: Kechik Catchment)

    Authors

    • Ali Fazlollahi 1
    • Ali Salajegheh 2
    • Sadat Feiznia 2
    • Hassan Ahmadi 2

    1 Assistant Professor, Faculty of Natural Resources, University of Guilan, I.R.Iran.

    2 Professor, Faculty of Natural Resources, University of Tehran, I.R. Iran.

,

Document Type : Research Paper

10.22059/jrwm.2016.61507
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Abstract

Sediment fingerprinting is a method for identifying sediment sources and determining the rate of contribution of each source. In this method, the natural tracer technology is used, that combined from samples collection, laboratory analyzing and statistical modeling. The natural tracers are measured in both the sources and suspended sediment to determine the rate of contribution each sources. The suspended sediment traps were constructed and used for the first time in country. In this research sediment fingerprinting was used in the loess area. 27 tracers were measured in all samples. Data were evaluated about outlier. The capability of each tracer in separating the sources was evaluated with kruskal-wallis test. All tracers were accepted. Then the best combination of tracers was determined with discriminate analysis. This combination is total carbon, Na, organic carbon, Pb, Co, Sr, Al, C/N and Rb. Then, the rate of contribution of each source was determined with normal method and optimized method. Among all the sediment sources, Gully and forest have the highest and lowest rates, respectively. The field observations were confirmed the results. The use of genetic algorithm increased the accuracy of determination of contribution of each source in comparison to normal method

Keywords

  • Sediment fingerprinting. Suspended sediment trap
  • Optimization
  • Genetic Algorithm
  • Kechik catchment
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Journal of Range and Watershed Managment
Volume 69, Issue 3
December 2016
Pages 647-660
Files
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  • PDF 1.65 M
History
  • Receive Date: 31 December 2012
  • Revise Date: 09 May 2017
  • Accept Date: 09 May 2017
  • First Publish Date: 09 May 2017
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How to cite
  • RIS
  • EndNote
  • Mendeley
  • BibTeX
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Statistics
  • Article View: 488
  • PDF Download: 340

APA

Fazlollahi, A., Salajegheh, A., Feiznia, S., & Ahmadi, H. (2016). Optimizing the rate of contribution of different sources in sediment yield of loess areas(Case study: Kechik Catchment). Journal of Range and Watershed Managment, 69(3), 647-660. doi: 10.22059/jrwm.2016.61507

MLA

Ali Fazlollahi; Ali Salajegheh; Sadat Feiznia; Hassan Ahmadi. "Optimizing the rate of contribution of different sources in sediment yield of loess areas(Case study: Kechik Catchment)". Journal of Range and Watershed Managment, 69, 3, 2016, 647-660. doi: 10.22059/jrwm.2016.61507

HARVARD

Fazlollahi, A., Salajegheh, A., Feiznia, S., Ahmadi, H. (2016). 'Optimizing the rate of contribution of different sources in sediment yield of loess areas(Case study: Kechik Catchment)', Journal of Range and Watershed Managment, 69(3), pp. 647-660. doi: 10.22059/jrwm.2016.61507

VANCOUVER

Fazlollahi, A., Salajegheh, A., Feiznia, S., Ahmadi, H. Optimizing the rate of contribution of different sources in sediment yield of loess areas(Case study: Kechik Catchment). Journal of Range and Watershed Managment, 2016; 69(3): 647-660. doi: 10.22059/jrwm.2016.61507

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