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Changes in the Carbon Stocks, Microbial and Enzyme Activities of Retic Albic Podzol in Southern Taiga during Postagrogenic Evolutionстатья
- Авторы: Kurganova I.N., Telesnina V.M., Lopes de Gerenyu V.O., Lichko V.I., Ovsepyan L.A.
- Журнал: Eurasian Soil Science
- Том: 55
- Номер: 7
- Год издания: 2022
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 825
- Последняя страница: 842
- DOI: 10.1134/S1064229322070079
- Аннотация: Soil organic matter largely controls the ecosystem functions of soil and is a source of energy and anutrient substrate for the soil microbial community as well. The postagrogenic dynamics of organic matterstock (content of organic carbon, Corg; total nitrogen, Ntot; and their ratio, C/N), basic soil properties, andindicators of soil microbial and enzyme activities are analyzed for the chronosequence of Retic Albic Podzol(southern taiga zone, Kostroma oblast, Russia). Different plots of the chronosequence have been withdrawnfrom agricultural use 11, 16, and 40 years ago. The stratification ratios (SRs) 0–5 : 5–10, 0–10 : 10–20, and0–10 : 20–30 cm layers for Corg and Ntot contents are also estimated. A statistically significant increase in thecontents of Corg and Ntot during the postagrogenic succession is observed in the topsoil layer of the old arablehorizon (0–5 and 5–10 cm) as well as an increase in the stratification of their distribution, especially after aclosed tree canopy has developed on the former arable land. Postagrogenic succession promotes an increasein the soil basal respiration rate and the content of microbial biomass, the maximum values of which are mostoften recordable in the soil under a 40-year-old secondary small-leaved forest. During the natural reforestation of the former arable lands, a statistically significant increase in the phosphatase activity is observedwithin the entire old arable horizon. The peaks of oxidoreductase activity correspond to the stages of succession with the maximum uptake of easily decomposable plant litter. Over the 40 years of postagrogenic succession, all analyzed parameters (except for pHKCl) have increased in a statistically significant manner at allconsidered depths of the old arable layer, with the highest annual increase in 0–5-cm layer, most enriched fororganic matter.
- Добавил в систему: Телеснина Валерия Михайловна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Kurganova_et_al_ESS_2022_7_2.pdf | 990,4 КБ | 20 января 2023 [vtelesnina] | |
| 2. | Kurganova_et_al_ESS_2022_7_2.pdf | Kurganova_et_al_ESS_2022_7_2.pdf | 990,4 КБ | 14 сентября 2022 [vtelesnina] |