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Comparison of Geostatistical methods for prediction of soil parameter in plant community of Nitraria schoberi(arid regions)

    Authors

    • Hamid Toranjzar 1
    • Asghar Zare Chahouki 2

    1 AsistantProfessor of Department of Desert Management , Arak Branch ,Islamic Azad university,Arak,Iran

    2 PhD Student in Watershed Management, Yazd University, I.R. Iran

,

Document Type : Research Paper

10.22059/jrwm.2014.50027
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Abstract

Geostatistical approaches have great importance because they include spatial correlation of geographic data. Present study evaluated the efficiency of geostatistical techniques and demonstrated their capabilities in studying the soil variables(soil texture (sand percent), EC and So4-2) in the important plant community of Nitraria schoberi in Meighan desert, Arak. A regular grid on the map comprising rectangular cells was designed and situated over the experimental area with 98 points for vegetation type. The grid was laid out in the field using the global positioning system. Soil samples were taken between 0-20 and 20-100 cm layers for each point. Analysis using the best view at semivariogram model were applied to select the Gaussian models of soil characteristics with R2 higher than 0.95. Among ordinary Kriging, simple Kriging and Inverse distance weighting methods, ordinary kriging method showed the best cross-validation criteria (mean square error and average error) and had higher prediction accuracy than others. Finally, spatial estimates of the soil characteristics were performed using ordinary kriging.

Keywords

  • interpolation methods
  • Mighan Desert
  • soil properties
  • Nitraria schoberi
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Journal of Range and Watershed Managment
Volume 66, Issue 4 - Serial Number 4
March 2014
Pages 509-519
Files
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  • PDF 966.61 K
History
  • Receive Date: 04 February 2012
  • Revise Date: 10 January 2014
  • Accept Date: 21 December 2012
  • First Publish Date: 20 February 2014
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How to cite
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  • BibTeX
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Statistics
  • Article View: 2,773
  • PDF Download: 1,109

APA

Toranjzar, H., & Zare Chahouki, A. (2014). Comparison of Geostatistical methods for prediction of soil parameter in plant community of Nitraria schoberi(arid regions). Journal of Range and Watershed Managment, 66(4), 509-519. doi: 10.22059/jrwm.2014.50027

MLA

Hamid Toranjzar; Asghar Zare Chahouki. "Comparison of Geostatistical methods for prediction of soil parameter in plant community of Nitraria schoberi(arid regions)". Journal of Range and Watershed Managment, 66, 4, 2014, 509-519. doi: 10.22059/jrwm.2014.50027

HARVARD

Toranjzar, H., Zare Chahouki, A. (2014). 'Comparison of Geostatistical methods for prediction of soil parameter in plant community of Nitraria schoberi(arid regions)', Journal of Range and Watershed Managment, 66(4), pp. 509-519. doi: 10.22059/jrwm.2014.50027

VANCOUVER

Toranjzar, H., Zare Chahouki, A. Comparison of Geostatistical methods for prediction of soil parameter in plant community of Nitraria schoberi(arid regions). Journal of Range and Watershed Managment, 2014; 66(4): 509-519. doi: 10.22059/jrwm.2014.50027

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