Mineralogical and chemical composition of podzolic-gleyish soils in Latvia
2002
Bambergs, K. | Skujans, R. (Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture. Dept. of Soil Science and Agrochemistry)
Podzolic-gleyish soils are the most widespread soils of Latvia. They have been developed on the moraine and glaciofluvial sandy parent materials of the recent glaciation. In all soil samples of the A and E horizons, illite mixed layer clay minerals were found, and the amounts of kaolinite and disperse quartz were twice as much in the soil horizons E and Bg compared with other soil horizons. The amounts of resistant and weatherable primary minerals as well as diverse iron forms were determined in soils horizons. Usually, based on soil agrochemical characteristics, podzolic-gleyish soils are most unfertile soils of Latvia. Research suggests that during long-term soil amelioration, these soils have come more leached out and are characterized by distinct stage of podzolization. According to WRB (World Reference Base for Soil Resources), some of podzolic-gleyish soils could be included into the Albeluvisols reference group.
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