Nazyrova F.I., Garipov T.T.
ACID-BASED BUFFERING OF ZONAL SOIL TYPES IN THE IN THE SOUTHERN URALS AT AGRO TECHNOGENETICS CONDITIONS ^{[№ 6 ' 2011]}
The acid-based buffering capacity of zonal soil types of the Southern Urals (virgin and arable counterparts) is studied in this work. General rule is the increase of buffering against acidification from north to south with the lowest values in light gray forest soils and the maximum — in a typical calcareous and south chernozem. Change of the buffering capacity of soils is correlated with a humus content and acidity of soil. The features of buffering changes in the acid-based interval for agricultural use of soil and oil pollution of soil are revealed.

Suleimanov R.R., Nazyrova F.I., Gabbasova I.M.
CHANGES OF PHYSICAL-CHEMICAL PECULIARITIES OF TYPICAL CHERNOZEM IN CONDITIONS OF POLLUTIONS WITH OIL DEVELOPMENT WASTE WATER AND RECULTIVATION ^{[№ 9 ' 2008]}
The influence of pollutions with highly mineralized oil development water on physical-chemical structure of soil is studied in conditions of small-plot field experience on typical carbonate chernozem. It is shown that pollution leads to salinization and alkalinization accompanied with violation of some soil complex characteristics. Recultivated measures, included introduction of reclamation elements, promoted active resalting and re-alkalinization even in one year after pollution, and in three years general characteristics and regimes of soil bring nearer to such of clean typical chernozem.

Suleimanov R.R., Nazyrova F.I.
CHANGES OF SOIL BUFFERING AT POLLUTION WITH OIL-FIELD WATERS AND CRUDE OIL ^{[№ 4 ' 2007]}
Changes of buffering characteristics of grey forest soils at pollution with highly mineralized oil-field sewages (OFS) and crude oil are studied in this article. It is shown that soil pollution with OFS leads to abrupt increase of buffering indexes at acid interval and to decrease – at alkaline. Restoration measures including entering of phosphogypsum and dung promote increasing of its general buffering. The degree of soil-absorbent complex degradation is increased with the antiquity growth and the level of original pollution at destruction of crude oil during the process of biological restoration of light-grey forest soils as a result of second salinization and alkalinization. Shift of acid-alkaline conditions leads to abrupt buffering decrease at acid interval.