Физические свойства черноземов под хвойными лесополосами
2013; Linguagem: Inglês
ISSN
1996-4277
AutoresТрофимов Иван Тимофеевич, Беховых Юрий Владимирович, Болотов Андрей Геннадьевич, Сизов Евгений Геннадьевич,
Tópico(s)Aeolian processes and effects
ResumoContradictory data on the effects of windbreaks on soil properties and understudied soil formation under windbreaks suggest the topicality of those issues. The research goal was studying the effect of coniferous windbreaks on chernozem soils’ properties. Southern chernozem and leached chernozem of the Ob River plateau were studied. The research involved the change in the morphological structure and basic physical properties of those soils under windbreaks’ effect. Soil properties of southern chernozem were studied under Larix sibirica, Picea abies, and Pinus sylvestris, and on fallow land at the State Windbreak Slavgorod-Rubtsovsk. Soil properties of leached chernozem were studied at the Research Institute of Siberian Gardening under Picea abies, Larix sibirica, and on fallows. Soil properties were defined by standard soil science methodology. The studies revealed more aggregated humus horizons under fallows than that under tree species. The conifers revealed varying effect on humus horizon thickness. Under pine the depth of humus horizon is greater than that under spruce and larch. Under tree species carbonates underlay deeper than those under fallows. Soil density under a tree trunk increases, and in the space between the trees it approximates soil density of fallows. Coarse silt is a dominant fraction of leached chernozem under windbreaks. In southern chernozems under windbreaks, medium sand and coarse silt dominate. Soil aggregation rating under spruce is close to poor, under pine and larch it is good, and excellent under fallow. The research findings are required to forecast soil properties’ changes at the use of felled windbreaks areas.
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