VAC 06.01.2002 Мелиорация, рекультивация и охрана земель
UDK 63 Сельское хозяйство. Лесное хозяйство. Охота. Рыбное хозяйство
GRNTI 38.33 Геохимия
GRNTI 68.05 Почвоведение
GRNTI 68.31 Сельскохозяйственная мелиорация
OKSO 06.04.02 Почвоведение
OKSO 06.03.02 Почвоведение
BBK 40 Естественнонаучные и технические основы сельского хозяйства
TBK 5605 Почвоведение
TBK 5607 Сельскохозяйственная мелиорация
TBK 6331 Геохимия
BISAC TEC003000 Agriculture / General
BISAC TEC003060 Agriculture / Agronomy / Soil Science
The specificities of leaching (outflow) of chemicals from soddy-podzolic loamy deeply gleyed soil by infiltration and its return from groundwater during their evaporation are considered in the paper. In the annual cycle calcium is the element which is mostly washed out with amount of 89…106 kg/ha. It was shown that potassium (15…14), manganese (13,6…9,3), zinc (13,6…7,7), calcium (7,5…5,2) and magnesium (7,1…4,7) in percentage of the outflow return in the soil with the capillary rise of groundwater. It is shown that the ratio of infiltration (I) and evaporation of groundwater (K) in soddy-podzolic soil is within the range of 0,3…0,6 for medium arid, 2,6…2,9 for average long-term and 2,6…2,9 for humid conditions of atmospheric moistening. Thus, the lowest values of ratios for medium arid, and the highest ones – for medium humid conditions, which reflects the real specificities of the infiltration and evaporation of groundwater in natural conditions.
soil moisture, water potential, groundwater, infiltration, groundwater evaporation, aeration zone, capillary fringe
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