Study of Soil and Mineralogical Characteristics of Rangeland Lands in Parishan Lagoon area of Kazeroon, Fars Province
Subject Areas : Agroecology Journalabolfazl azadi 1 , Sirous Shakeri 2 , Somayyeh Shahamatpoor 3
1 - Soil and Water Research Department, Khuzestan Agricultural and Natural Resources Research and Education Center, AREEO, Ahvaz, Iran
2 - Department of Agriculture, Payame Noor University, Tehran, Iran
3 - student
Keywords: ", X-ray diffraction", , ", Parishan Lak", , ", Clay minerals", , ", soil order", , ", physiographic unit", ,
Abstract :
The objective of this research was to study morphological, phisico-chemical and mineralogical properties of rang land soils of Parishan Lagoon area of Kazeroon, Fars Province with soil temperature and moisture regimes of ustic and hyperthermic , respectively. For this study four representative soil profiles were selected on plateaus, hills units, piedmont plain and lake plain landforms. Laboratorial studies have been carried out on each soil sample after air drying and siewing by a two millimeter sieve. Based on the laboratorial data, the soils were classified up to family level according to American comprehensive system of soil classification. The soils of the area were classified as Entisoils and Inceptisoils with ochric epipedon and calcic and gypsic subsurface horizons. The lands under study in Parishan wetland, which are located in four physiographic units and under rangeland use. Due to the low rainfall and calcareous soils, soil factors have not had a significant impact on soil evolution and development. It seem among the five soil forming factor, topography and time have played a more prominent role. X-ray diffraction analysis of clay fraction of the area showed the presence of smectite, illite, cholorite, palygorskite and quartz minerals. The source of smectite mineral of the soils area are inherited, neoformation and transformation, cholorite, illite and quartz were inherited and the most resource of palygorskite is inherited and neoformation in the presence of gypsum and calcit. And finally, most of the soil's chemical properties, including organic matter, lime and gypsum, have been increasing ... from the plateaue physiographic unit to the lake plain .
