Depth profiles of potassium and its isotope ratio (K/K) in several forest soils
نویسندگان
چکیده
Depth profiles potassium and its isotope ratio (K/K) were investigated in several forest soils from different geological and climatic backgrounds. The ratio was found not to be constant (0.0117 %) but varied appreciably from 0.0085 to 0.0167 % among different soils. Possible factors affecting variability of K/K values were considered by a multivariate factor analysis which suggested that aqueous parameters like humidity and pH might be a controlling factor in the surface soils. The amount (and probably chemical forms) of iron oxide may be another one influencing K/K values in mineral components at deeper
منابع مشابه
Effect of different land use on Potassium forms and some soil properties in Kohgiluyeh and Boyer-Ahmad Province, Southwest Iran
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Sugarcane (Saccharum officinarum L.) and rotational crops have been cultivated without potassium fertilizers for many years in southwestern Iran. Although potassium was removed from this soil, no response has been reported to K fertilizers by crops. This study was conducted to evaluate the effects of wetting and drying, and cultivation systems on potassium fixation in some Khouzestan soils. Th...
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تاریخ انتشار 2009