Compositions of n-Alkanes and n-Methyl Ketones in Soils of the Forest-Park Zone of Moscow

Anokhina, N.A.; Demin, V.V.; Zavgorodnyaya, Y.A.

Авторы: Anokhina N.A., Demin V.V., Zavgorodnyaya Yu A.
Журнал: Eurasian Soil Science
Том: 51
Номер: 6
Год издания: 2018
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 637
Последняя страница: 646
Оригинальные версии: Состав н-алканов и н-метил-кетонов в почвах парковой зоны Москвы
DOI: 10.1134/S1064229318060030
Аннотация: The seasonal changes in the contents and compositions of n-alkanes and n-methyl ketones have been studied in typical soddy-podzolic soils (Albic Retisols (Ochric)) under lime forests in the Losiny Ostrov National Park, Moscow. In the humus horizons, the reserves (about 370 mg/m2) of odd n-alkanes with the chain length of C25–C35— the biomarkers of terrestrial vegetation—are 4–5 times below their amount entering with the leaf falloff in autumn. A noticeable contribution of microbial biomass hydrocarbons to the lipid fraction in the AY and AYel horizons manifests itself in the increased fraction of odd and medium-chain (<C25) homologues (OEP = 4–6, LSR = 5–7) in the spectrum of n-alkanes. The lowest content of methyl ketones and odd n-alkanes was observed immediately after the winter period (OEP = 22, A/K = 21–170). In the EL and BT horizons, the n-alkane fraction of organic matter and the relative content of high molecularweight n-alkanes more resistant to microbial destruction (C33, C35) increases by 3–4 times in comparison with that in the abovelying horizons, and the type of distribution of n-alkanes by the carbon chain length changes: the dominance of odd homologues is absent; in the EL horizon, OEP = 1.
Добавил в систему: Завгородняя Юлия Анатольевна

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

ИСТИНА

ИСТИНА ЦЭМИ РАН

Compositions of n-Alkanes and n-Methyl Ketones in Soils of the Forest-Park Zone of Moscowстатья