Soil survey and land suitability assessment of saline and gypsiferous soils of Barm-e-Alvan region, Kohgilouye-va-Boyerahmad Province

Subject Areas : Water and Environment

Siros Shakeri ¹ (- Department of agriculture, Payame Noor University (PNU), Tehran, Iran.)
Hamidreza Owliaie ² (Department of Soil Science, College of Agriculture, Yasuj University, Yasuj, Iran)
Ali Abtahi ³ (Department of Soil Science, College of Agriculture, Shiraz University, Shiraz, Iran.)
Abolfazl Azadi ⁴ (PHD student of Soil Science, Shiraz University)

Received: 2015-04-21 Accepted : 2015-06-17 Published : 2015-09-23

Keywords: Saline and gypsiferous soils, Sustainable use, Barm-e-Alvan, Land suitability,

Abstract :

This study was performed in order to assess land suitability of saline and gypsiferous soils of Barm-e-Alvan region, Kohgilouye-va-Boyerahmad Province for sustainable use of these lands. The mainobjective of land suitability assessment is evaluating the land characteristics in the current economicconditions for optimum use of available resource in order to have a moderate income with minimumsoil loss. Salt and gypsum occurrence in soils are key factors of lowland soils cause limitations forcrop cultivation. For this study the soil map was prepared. After preparing soil map of the region asbasic map, the operation of land suitability classification for the region main crops (rain-fed wheat andbarley) was carried out by simple limitation method based on FAO guideline and tables of climaticand soil needs of the crops. The results indicated that soils were classified in three soil orders ofEntisols, Inceptisols and Aridisols and topography was the main soil forming factor. It was alsodistinguished that no major limitation was for the production of these crops. Selection of appropriatevarieties of wheat and barley with more resistance to limiting factors with shorter growth period causemore production, hence improving water and soil resources of the region

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