The importance of dust material in urban soil formation: the experience on study of two young Technosols on dust depositions

Prokof'eva, T.V.; Kiriushin, A.V.; Shishkov, V.A.; Ivannikov, F.A.

Авторы: Prokof'eva T.V., Kiriushin A.V., Shishkov V.A., Ivannikov F.A.
Журнал: Journal of Soils and Sediments
Номер: 2
Год издания: 2017
Издательство: Ecomed Verlagsgesellschaft AG & Co.
Местоположение издательства: Germany
Первая страница: 515
Последняя страница: 524
DOI: 10.1007/s11368-016-1546-7
Аннотация: Purpose The volume of dust deposition on the soil surface in Moscow is big enough and make several tens of grams per square meter annually. The role of dust as a soil forming material is especially high in places with practically no other soil parent materials. It is necessary to consider solid atmospheric precipitation as a parent soil material in urban conditions and its impact on soil properties. Materials and methods Samples of two soil bodies were taken near two major highways of Moscow and airborne solid deposit samples were collected from the roadside barrier in summer and from plant leaves after snow melt. The fallout samples were studied by methods used for soil because of its silicate matrix (Si~30% total). Main complex characteristics of samples were obtained by chemical analysis and with a scanning electron microscope with energy dispersive X-ray spectrometer. Bulk elemental composition, available phosphorus and potassium, carbonates, organic carbon and oil hydrocarbons contents, pH, RedOx potential, magnetic susceptibility and particle-size distribution of dust and soils were determined. Results and discussion Near the highways, where the process of dust transfer is activated, there are possibilities of dust inclusion into soil and formation of new soil horizons on these deposits. Pedofeatures are formed during a very short period of time. The soil forming processes are connected with both soil organic matter and mineral compounds transformation. Chemical properties of studied soils correspond to those of usual Moscow soil horizons and dust samples studied previously (Prokofyeva at al., 2011, Prokof’eva at al., 2015). It was established that atmospheric solid aerosol imports organic carbon, carbonates and other salts, pollutants such as oil hydrocarbons and heavy metals into the soil. Airborne deposits influence soil physical properties by enriching the soil with clay and coarse silt fractions. Conclusions Investigation of dust deposits composition provides data for characterizing material being continuously deposited on the urban soil surface. The atmospheric fallouts together with construction waste and natural rocks provide the common geochemical properties of urban soils.
Добавил в систему: Прокофьева Татьяна Вадимовна

	ИСТИНА	Войти в систему Регистрация
	ИСТИНА ИНХС РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИСТИНА ИНХС РАН

The importance of dust material in urban soil formation: the experience on study of two young Technosols on dust depositionsстатья

Прикрепленные файлы