LIME DISTRIBUTION IN THE CALCAREOUS SOIL UNDER CLIMATIC CONDITION OF WESTERN IRAN

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SEPAHVAND M.; ZARRINKAFSH M.

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Journal: Iranian Journal of Soil Research Year:2001 | Volume:- | Issue:(Special Issue) Page(s): 108-119

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Title

LIME DISTRIBUTION IN THE CALCAREOUS SOIL UNDER CLIMATIC CONDITION OF WESTERN IRAN

Author(s)

SEPAHVAND M. | ZARRINKAFSH M. | Issue Writer Certificate

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Abstract

This research was carried out to study lime distribution in the calcareous soils of Khaveh plain located in 92 km northwest of Khorramabad, the center of Lorestan Province. The soils were derived from limestone parent materials under Mediterranean climatic condition of west Iran. The elevation of the area is 1794-2000m and mean annual rainfall and temperature are 548 mm and 10.5°C. Soil moisture and temperature regimes are xeric and mesic respectively. Relevant parent rocks are Jurassic biomicrites and biopelmicrites, Cretaceous limestones and Eocene conglomerates. Twenty-two soil profiles were dug and described through three transects, two in width and one in length directions so that all physiographic units were covered. Physical and chemical analyses were done on soil samples following common laboratory methods. The results showed that rainfall is the main factor that causes lime leaching, distribution and accumulation in lower horizons. The other factors are topography, time, irrigation water, capillary rise, water table fluctuations and wet infall of calcareous dust of atmosphere. In gentely sloping plateaux (dryland farming), the accumulation of secondary lime has occurred in the depth of 70-80 cm and lime was irregularly distributed in the soil profile (more lime in lower horizons compare to upper horizons). As the slope increases, the zone of lime accumulation moves towards the soil surface and lime distribution becomes more regular. At the head and middle of fans, the accumulation of secondary lime were not observed due to their young alluvio-collivial parent materials. At lower parts of the fans where slope decreases, secondary lime has accumulated in about 50 cm and lime distribution is irregular. In the irrigated parts of piedmont plains, there is no evidence of lime accumulation within 100cm from soil surface.

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APA: Copy

SEPAHVAND, M., & ZARRINKAFSH, M.. (2001). LIME DISTRIBUTION IN THE CALCAREOUS SOIL UNDER CLIMATIC CONDITION OF WESTERN IRAN. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, -((Special Issue)), 108-119. SID. https://sid.ir/paper/16004/en

Vancouver: Copy

SEPAHVAND M., ZARRINKAFSH M.. LIME DISTRIBUTION IN THE CALCAREOUS SOIL UNDER CLIMATIC CONDITION OF WESTERN IRAN. IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES[Internet]. 2001;-((Special Issue)):108-119. Available from: https://sid.ir/paper/16004/en

IEEE: Copy

M. SEPAHVAND, and M. ZARRINKAFSH, “LIME DISTRIBUTION IN THE CALCAREOUS SOIL UNDER CLIMATIC CONDITION OF WESTERN IRAN,” IRANIAN JOURNAL OF SOIL AND WATERS SCIENCES, vol. -, no. (Special Issue), pp. 108–119, 2001, [Online]. Available: https://sid.ir/paper/16004/en

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