EFFICIENCY OF SOME GEOSTATISTICAL ESTIMATORS FOR INTERPOLATION AND MAPPING SOME SOIL QUALITY PROPERTIES

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MOUSAVIFARD SEYEDEH MAHBUBE; MOMTAZ HAMID REZA; KHODAVERDILOO HABIB

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Journal: JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION Year:2013 | Volume:2 | Issue:3 Page(s): 0-0

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Information Journal Paper

Title

EFFICIENCY OF SOME GEOSTATISTICAL ESTIMATORS FOR INTERPOLATION AND MAPPING SOME SOIL QUALITY PROPERTIES

Author(s)

MOUSAVIFARD SEYEDEH MAHBUBE | MOMTAZ HAMID REZA | KHODAVERDILOO HABIB | Issue Writer Certificate

Keywords

GEOSTATISTICSQ2

INTERPOLATION TECHNIQUESQ2

KRIGINGQ2

SOIL QUALITY PROPERTIESQ2

Abstract

For design and implementation of soil conservation programs, accurate and optimized mapping of soil properties is required. The type of interpolation method is one of the most important issue involved in mapping soil properties. Six ordinary methods of spatial interpolation were compared to determine their suitability for estimating some quality properties of topsoil including clay content, electrical conductivity, equivalent calcium carbonate and organic carbon in the Naqade region farmlands located in west Azerbaijan. The area of study region was about 8300 ha. For this purpose, 282 topsoil samples were collected randomly and tested for laboratory analysis. Deterministic methods (radial basis function and global polynomial interpolation) as well as geostatistical estimators (ordinary KRIGING) were utilized to map related soil properties. The highest and lowest CV was obtained for EC and clay content variables, respectively. For clay and electrical conductivity, the exponential model, for equivalent calcium carbonate the Gaussian model, and for organic carbon the spherical were the best fitting models to calculate the experimental variogram. According to the results, the ordinary KRIGING approach characterized with the minimum error indicator of bias-variance trade-off (BVTO) for evaluating clay, electrical conductivity, equivalent calcium carbonate and organic carbon. The thin plat spline model of radial basis function showed the maximum error in assessment of studied attributes. Eventually, the interpolation maps were generated regard to the most appropriate interpolators.

Cites

COMPARISON OF SPATIAL INTERPOLATION METHODS TO MAPP HEAVY METALS CONCENTRATIONS IN SURFACE SOIL OF ARAN-O-BIDGOL CITY

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APA: Copy

MOUSAVIFARD, SEYEDEH MAHBUBE, MOMTAZ, HAMID REZA, & KHODAVERDILOO, HABIB. (2013). EFFICIENCY OF SOME GEOSTATISTICAL ESTIMATORS FOR INTERPOLATION AND MAPPING SOME SOIL QUALITY PROPERTIES. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, 2(3), 0-0. SID. https://sid.ir/paper/400966/en

Vancouver: Copy

MOUSAVIFARD SEYEDEH MAHBUBE, MOMTAZ HAMID REZA, KHODAVERDILOO HABIB. EFFICIENCY OF SOME GEOSTATISTICAL ESTIMATORS FOR INTERPOLATION AND MAPPING SOME SOIL QUALITY PROPERTIES. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION[Internet]. 2013;2(3):0-0. Available from: https://sid.ir/paper/400966/en

IEEE: Copy

SEYEDEH MAHBUBE MOUSAVIFARD, HAMID REZA MOMTAZ, and HABIB KHODAVERDILOO, “EFFICIENCY OF SOME GEOSTATISTICAL ESTIMATORS FOR INTERPOLATION AND MAPPING SOME SOIL QUALITY PROPERTIES,” JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, vol. 2, no. 3, pp. 0–0, 2013, [Online]. Available: https://sid.ir/paper/400966/en

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