Запасы Углерода В Песчаных Почвах Сосновых Лесов На Западе России

Кузнецова, Анна; Лукина, Н. В.; Горнов, А. В.; Горнова, М. В.; Тихонова, Е. В.; Смирнов, В. Э.; Данилова, М. А.; Тебенькова, Д. Н.; Браславская, Т. Ю.; Кузнецов, В. А.; Ткаченко, Ю. Н.; Геникова, Н. В.

doi:10.31857/s0032180x20080109

Cited by 3 publications

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“…Целью данного исследования является экспериментальная оценка показателей трансформации и гумификации подстилки в лесных экосистемах беллигеративных ландшафтов времен Курской битвы. Полученные данные дополняют более распространенные сведения о функционировании деструкционного блока экосистем в посттехногенных ландшафтах [4][5][6], а также оценки поступления и депонирования органического вещества в их новообразованных почвах [7][8][9][10].…”

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Transformation of Forest Litter in Different Substrate Conditions of Newly Formed Soils of Belligerative Landscapes

Goleusov

2024

УСЕ (ACNR)

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В статье представлены результаты экспериментального определения состава, динамики и трансформации опада и подстилки в различных субстратных условиях лесных экосистем, сформировавшихся на участках, нарушенных ведением боевых действий в период Великой Отечественной войны. Проведено сравнение показателей деструкционного блока экосистем при различном сочетании субстратно-фитоценотических условий. Определены показатели массы подстилки, ее состава, опадо-подстилочные коэффициенты, коэффициенты трансформации и гумификации опада. Установлено, что эти показатели определяются как типом лесных сообществ, так и субстратными условиями. Ежегодно в органическое вещество почв переходит от 6 до 14 % массы лесного опада, в зависимости от субстратных условий. В почву рецентных лесных экосистем беллигеративных ландшафтов Курской битвы поступает ежегодно от 174 до 552 г/м 2 опада, что после гумификации приводит к накоплению до 50 г/м 2 органического вещества в почве. На песчаных субстратах коэффициент гумификации выше, подстилка разлагается быстрее, а почвы характеризуются более высокой биологической активностью, чем на суглинистых и глинистых субстратах. Почвообразовательная способность определенного типа лесного биогеоценоза зависит от таких факторов, как количество опада, его биохимический состав, свойства эдафотопа.Ключевые слова: лесной опад, лесная подстилка, трансформация опада, гумификация, органическое вещество почв, эдафические условия, новообразованные почвы, беллигеративные ландшафты

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Transformation of Forest Litter in Different Substrate Conditions of Newly Formed Soils of Belligerative Landscapes

Goleusov

2024

УСЕ (ACNR)

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Carbon Dioxide and Methane Distribution in Peat Deposits of an Oligotrophic Forest Swamp in Western Siberia and Their Emission

Inisheva,

Sergeeva,

Golovchenko

et al. 2023

Lesovedenie

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Swamps and wetlands of forested areas, as well as the non-forest swamps are jointly involved in the global carbon cycle. They play an important role in depositing the greenhouse gases. This article analyses the long-term dynamics of the greenhouse gases (CO2 and CH4) concentration in a peat deposit and their emission in a natural and reclaimed oligotrophic bog in the southern taiga zone of Western Siberia. It was found that a significant role in the CO2 and CH4 concentration dynamics in the peat deposits belongs to the weather conditions of each month of the warm period, the botanical composition and the activity of biochemical processes, as well as the structure and physical and mechanical properties of a peat deposit. Also identified were the intra-deposit, spatial and temporal dynamics of the greenhouse gases concentrations’ indicators. It has been proven that there are multicomponent dependences of CO2 and CH4 concentrations on the parameters of external and intra-deposit conditions. The concentrations’ parameters in the oligotrophic bog’s peat deposit from the swampy catch basin of the Klyuch river were determined as follows: extreme concentrations of CO2 were 0.002–3.64 mmol/dm3, extreme concentrations of CH4 were 0.003–2.03 mmol/dm3; the CO2 normalised fluxes varied from /–22.2/ to 157.8 mg C/(m2 · h), the CH4 normalised fluxes’ extreme values were equal /–3.0/–5.3 mg C/(m2 · h), the CO2 fluxes for the warm period were 20–110 g C/(m2 · year), the CH4 fluxes for the warm period were 0.8–3.7 C/(m2 · year). At the forest reclamation site, a slight increase in the CO2 normalised fluxes activity was revealed compared to a natural swamp, while the greenhouse gases’ concentrations in the peat deposit were found to be comparable in both cases. It was shown that in the absence of an operating drainage system, the process of re-bogging occurs. Due to the vast areas of the West Siberian Plain’s swamps and the aggressive nature of the bogging process, moderate and selective forest reclamation is suggested for its taiga zone.

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Effects of Forest Reclamation on Carbon Stocks and Respiration in Soils of Natural and Technogenic Ecosystems of Southern Karelia

Pridacha,

Akhmetova,

Semin

2024

Počvovedenie

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The paper presents the results of studies on soil carbon stock dynamics, CO₂emissions and soil microbial respiration during post-industrial succession upon reforestation of a sand and gravel pit in southern Karelia. The soils of the territories of different reforestation options were studied in July 2021 and 2022. In 1991, annual Scots pine (Pinus sylvestris L.) seedlings were planted on the plots: 1) in sand and gravel mineral soil (SP 1, SP 2); 2) in peat-improved substrate (SP 3). Natural soils (Entic Podzol) of an undisturbed lingonberry-type pine forest (SP 4) served as the control. Soil total (organic) carbon, microbial activity (by using the basal and substrate-induced respiration method in the laboratory), and CO₂emission from the soil surface (under field conditions) were determined. The assessment of the properties of post-industrial soils revealed the similarity of the studied parameters in replantozem SP 3 and podzolized podbur SP 4, which indicates a positive effect of peat-enriched substrate on the recovery of the soil and vegetation cover of the sand and gravel pit. The higher values of the carbon stocks (6–10-fold) and CO₂fluxes (2–4-fold) from the surface of the replantozem (Umbric Leptosol (Novic)) SP 3 relative to those in psammozems (Skeletic Leptosol) of SP 1 and SP 2 are due to intensive organic matter accumulation processes and the application of peat substrate rich in nutrients and plant diaspores during planting. SP 1 and SP 2 had the lowest values of soil carbon stocks, CO₂emissions, microbial activity, simultaneously with low stand productivity as compared to SP 3 and SP 4. To make more accurate predictions of the dynamics of the said parameters of disturbed soils, it is necessary to take into account their spatial and temporal variability.

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Запасы Углерода В Песчаных Почвах Сосновых Лесов На Западе России

Cited by 3 publications

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Transformation of Forest Litter in Different Substrate Conditions of Newly Formed Soils of Belligerative Landscapes

Transformation of Forest Litter in Different Substrate Conditions of Newly Formed Soils of Belligerative Landscapes

Carbon Dioxide and Methane Distribution in Peat Deposits of an Oligotrophic Forest Swamp in Western Siberia and Their Emission

Effects of Forest Reclamation on Carbon Stocks and Respiration in Soils of Natural and Technogenic Ecosystems of Southern Karelia

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