VARIABILITY OF QUALITATIVE LAND SUITABILITY EVALUATION (PARAMETRIC METHOD) IN A DETAILED MAP UNIT IN FARROKHSHAHR AREA, CHAHARMAHAL AND BAKHTIARI PROVINCE

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SALEHI M.H.; KHADEMI H.; GYAVI J.; KARIMIAN EGHBAL M.

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Journal: THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA) Year:2005 | Volume:27 | Issue:2 Page(s): 115-126

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Title

VARIABILITY OF QUALITATIVE LAND SUITABILITY EVALUATION (PARAMETRIC METHOD) IN A DETAILED MAP UNIT IN FARROKHSHAHR AREA, CHAHARMAHAL AND BAKHTIARI PROVINCE

Author(s)

SALEHI M.H. | KHADEMI H. | GYAVI J. | KARIMIAN EGHBAL M. | Issue Writer Certificate

Keywords

QUALITY OF SOIL MAPQ4

VARIABILITYQ4

SYS ET AIQ4

WHEATQ3

Abstract

QUALITY OF SOIL MAPs for different land uses is affected by VARIABILITY of soils in the map units. Thus, accuracy of procedures used for crop recommendation would be questionable. This study was conducted for statistical evaluation of the procedure presented by Sys et al. (1991) for land suitability evaluation in Farrokhshahr area, Chaharmahal and Bakhtiari province. Results from thirty-one pedon in a selected detailed map unit were compared with the results obtained from representative pedon. Purity of suitability class was 16.1 and 24% at series and phases of series levels, respectively. According to cluster analysis, considering land indices, similar to that of the reference pedon, purity improves to 32.2 and 48%. These results also indicate that the use of land suitability class, because of its extended range and generalization of evaluation results derived from reference profile to the whole land unit, can be miss-leading considerably. For this reason, it is advised to take care in the interpretation of the results, at least when the suitability of a land is at the vicinity of the evaluated class indices. Also, due to low purity in soil map units, the use of this method in the level upper than phases of series level and also precision agriculture is not recommended. Combined new techniques like geostatistics, GIS and RS can be used to improve soil Sampling and mapping methods.

Cites

SPATIAL VARIABILITY OF SOIL PROPERTIES AND IRRIGATED WHEAT YIELD IN A QUANTITATIVE SUITABILITY MAP, A CASE STUDY: SHAHR-E-KIAN AREA, CHAHARMAHALVA-BAKHTIARI PROVINCE

References

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APA: Copy

SALEHI, M.H., KHADEMI, H., GYAVI, J., & KARIMIAN EGHBAL, M.. (2005). VARIABILITY OF QUALITATIVE LAND SUITABILITY EVALUATION (PARAMETRIC METHOD) IN A DETAILED MAP UNIT IN FARROKHSHAHR AREA, CHAHARMAHAL AND BAKHTIARI PROVINCE. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), 27(2), 115-126. SID. https://sid.ir/paper/24691/en

Vancouver: Copy

SALEHI M.H., KHADEMI H., GYAVI J., KARIMIAN EGHBAL M.. VARIABILITY OF QUALITATIVE LAND SUITABILITY EVALUATION (PARAMETRIC METHOD) IN A DETAILED MAP UNIT IN FARROKHSHAHR AREA, CHAHARMAHAL AND BAKHTIARI PROVINCE. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA)[Internet]. 2005;27(2):115-126. Available from: https://sid.ir/paper/24691/en

IEEE: Copy

M.H. SALEHI, H. KHADEMI, J. GYAVI, and M. KARIMIAN EGHBAL, “VARIABILITY OF QUALITATIVE LAND SUITABILITY EVALUATION (PARAMETRIC METHOD) IN A DETAILED MAP UNIT IN FARROKHSHAHR AREA, CHAHARMAHAL AND BAKHTIARI PROVINCE,” THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), vol. 27, no. 2, pp. 115–126, 2005, [Online]. Available: https://sid.ir/paper/24691/en

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