QUANTITATIVE EVALUATION OF SOIL QUALITY AND ITS SPATIAL DISTRIBUTION IN SOME AGRICULTURAL REGIONS OF QAZVIN PROVINCE, IRAN

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RAHMANI POOR FAZEL; BAHRAMI HOSEINALI; RAHIMI BANDARABADI SIMA; FEREIDOONI ZAHRA

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Journal: Iranian Journal of Soil and Water Research Year:2012 | Volume:43 | Issue:1 Page(s): 1-8

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Title

QUANTITATIVE EVALUATION OF SOIL QUALITY AND ITS SPATIAL DISTRIBUTION IN SOME AGRICULTURAL REGIONS OF QAZVIN PROVINCE, IRAN

Author(s)

RAHMANI POOR FAZEL | BAHRAMI HOSEINALI | RAHIMI BANDARABADI SIMA | FEREIDOONI ZAHRA | Issue Writer Certificate

Keywords

SPATIAL INTERPOLATIONQ2

SOIL QUALITY INDEXQ2

GEOSTATISTICALQ2

QAZVINQ1

Abstract

Continuous soil quality evaluation in is necessary agricultural regions to sustainable soil management and profitable agricultural production. The objectives of this study were comprised of an evaluation of soil quality utilizing Integrated Quality Index (IQI) along with its spatial distribution in QAZVIN province. IQI was calculated and its spatial changes analyzed using different interpolation methods via GIS software. Precision criteria MAE and RMSE, bias criteria MBE and correlation between measured vs. predicted values (r) were employed to determine a suitable interpolation method. The results indicated an IQI index of strong spatial correlation (Nugget/Sill=0.38) with an effective range of 19.18 kilometers. The IQI spatial distribution is well fitted by the exponential model. Completely Regularized Spline was selected as a suitable interpolation method using evaluation criteria as well as existing trend in area. IQI model revealed the soil areas with moderate quality (grade III) as dominant.

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APA: Copy

RAHMANI POOR, FAZEL, BAHRAMI, HOSEINALI, RAHIMI BANDARABADI, SIMA, & FEREIDOONI, ZAHRA. (2012). QUANTITATIVE EVALUATION OF SOIL QUALITY AND ITS SPATIAL DISTRIBUTION IN SOME AGRICULTURAL REGIONS OF QAZVIN PROVINCE, IRAN. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 43(1), 1-8. SID. https://sid.ir/paper/225449/en

Vancouver: Copy

RAHMANI POOR FAZEL, BAHRAMI HOSEINALI, RAHIMI BANDARABADI SIMA, FEREIDOONI ZAHRA. QUANTITATIVE EVALUATION OF SOIL QUALITY AND ITS SPATIAL DISTRIBUTION IN SOME AGRICULTURAL REGIONS OF QAZVIN PROVINCE, IRAN. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2012;43(1):1-8. Available from: https://sid.ir/paper/225449/en

IEEE: Copy

FAZEL RAHMANI POOR, HOSEINALI BAHRAMI, SIMA RAHIMI BANDARABADI, and ZAHRA FEREIDOONI, “QUANTITATIVE EVALUATION OF SOIL QUALITY AND ITS SPATIAL DISTRIBUTION IN SOME AGRICULTURAL REGIONS OF QAZVIN PROVINCE, IRAN,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 43, no. 1, pp. 1–8, 2012, [Online]. Available: https://sid.ir/paper/225449/en

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