Organic carbon fluxes in the system soil-phytocenosis of bilberry-sphagnum spruce forest in the middle taiga zone of the Komi republic

Kuznetsov, M. A.; Бобкова, К. С.

doi:10.1134/s1067413614050099

Cited by 9 publications

(3 citation statements)

References 3 publications

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“…Siberian spruce stands out as one of the best carbon accumulators, particularly in the middle taiga spruce stands, where carbon accumulation reaches 85.48 tons per hectare, with 95% of the carbon concentrated in Siberian spruce trees [6].…”

Section: Introductionmentioning

confidence: 99%

Intensification of cultivation of seedlings of Siberian spruce (Picea obovata Ledeb.) in the Southern Urals

Sabirzyanov,

Ishbirdina,

Muftakhova

et al. 2023

E3S Web of Conf.

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The study underscores the vital demand for efficient cultivation of Siberian spruce seedlings in reforestation and land reclamation. It delves into diverse peat substrate types, densities, and nutrient additives, providing insights for optimizing growth. The comprehensive approach involves microbiological preparations and mycorrhiza to enhance seedling development. The recommendation is to use high-density peat, introducing microbiological preparations post-emergence for fostering robust Siberian spruce seedlings. The relevance of the research stems from the high demand for large quantities of planting material in reforestation efforts. Siberian spruce, known for shade tolerance and cold resistance, is a significant carbon accumulator. The paper reports 2023 experiments on peat substrates with varying densities and nutrient additives, emphasizing pre-sowing seed treatment with growth stimulants. Results show increased germination energy and germination on denser and more acidic peat substrates. However, superior biometric indicators at the season's end are observed in seedlings grown on substrates with lower density and additives like a complex of humic acids, salts, mineral fertilizers, trace elements, soil microflora, and mycorrhiza. The proposal advocates using high-density peat (at least 0.6 g/cm3) for growing Siberian spruce seedlings, introducing microbiological preparations post-emergence, and regular fertilizing for enhanced first-year development.

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Section: Introductionmentioning

confidence: 99%

Intensification of cultivation of seedlings of Siberian spruce (Picea obovata Ledeb.) in the Southern Urals

Sabirzyanov,

Ishbirdina,

Muftakhova

et al. 2023

E3S Web of Conf.

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“…That said, N is an important limiting factor for vegetation growth, especially in cold temperate and boreal forests, where N addition significantly increases primary productivity and carbon uptake. Many research groups have conducted large-scale studies of carbon and nitrogen contents in various components of forest biogeocenosesterrestrial and underground biomass fractions, soil, atmospheric deposition, soil water, and others [1][2][3][4][5][6][7][8]. However, the carbon and nitrogen contents in various components of representative northern taiga forests of the Murmansk region remain poorly studied.…”

Section: Introductionmentioning

confidence: 99%

Estimation of Carbon and Nitrogen Contents in Forest Ecosystems in the Background Areas of the Russian Arctic (Murmansk Region)

Ershov,

Sukhareva,

Ryabov

et al. 2023

Forests

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In this study, carbon and nitrogen contents in the undisturbed terrestrial ecosystems in the northern taiga zone of Russia’s Murmansk region were estimated. The goal of this study was to examine the carbon and nitrogen dynamics in atmospheric precipitation, assimilating organs of coniferous trees (Picea obovata and Pinus sylvestris), needle litter, soils, and soil water. The objects of our research were the most common dwarf shrub-green moss spruce forests and lichen-dwarf shrub pine forests of the boreal zone. The study was carried out on permanent plots between 1999 and 2020. The long-term dynamics of carbon concentrations in snow demonstrated a trend towards increasing carbon concentrations in forested and treeless areas of the Murmansk region. It was shown that in representative spruce and pine forests, the concentrations and atmospheric precipitation of carbon compounds and carbon leaching with soil water were higher below the tree crowns, compared to between the crowns. In soil water, a decrease was found in carbon concentration with the soil profile depth. For soils, the highest carbon concentrations were found in the organic and illuvial soil horizons. The main soil sinks of carbon and nitrogen in northern taiga forests were found to be located in the organic soil horizon below the crowns. In northern taiga forests, the carbon content of living Picea obovata and Pinus sylvestris needles and Pinus sylvestris needle litter had minor variability; no significant interbiogeocoenotic and age differences were found. We found that the nitrogen content in brown needles and needle litter was significantly lower compared to photosynthetically active needles, probably due to retranslocation processes (withdrawal before needle abscission), corroborating the literature in the results session. The largest stocks of carbon and nitrogen in northern taiga forests are concentrated in the soil organic horizon, and the removal of these elements with soil water is insignificant. Carbon and nitrogen stocks in living and fallen needles are lower than in soil. The least amount of carbon and nitrogen is contained in atmospheric precipitation.

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“…It is empirically demonstrated that a larger sampling area is necessary for a stand‐scale estimate of DOM necromass with high spatial variability (Yoneda, 1982). For example, leaf litter and FWD are considered to have relatively lower spatial variability than that of CWD and were often sampled with plots ≥1–5 m 2 (Kavvadias et al, 2001; Kuznetsov & Bobkova, 2014; Ugawa et al, 2012), whereas CWD is considered to have higher spatial variability and was often surveyed with plots ≥100 m 2 or along lines ≥10 m (Iwashita et al, 2013; Kissing & Powers, 2010; Palace et al, 2012; Pedlar et al, 2002). Insufficient sampling effort or arrangement may lead to an incorrect estimate of DOM necromass and, consequently, R stand estimate (Chambers et al, 2001; Gough et al, 2007; Jomura et al, 2007; Liu et al, 2006; Olson, 1963; Uchida et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Effects of differences in aboveground dead organic matter types on the stand‐scale necromass and CO₂ efflux estimates in a subtropical forest in Okinawa Island, Japan

Abe

Katayama

Taniguchi

et al. 2022

Ecological Research

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Dead organic matter (DOM), which consists of leaf litter, fine woody debris (FWD; <3 cm diameter), downed coarse woody debris (CWDlog), and standing or suspended coarse woody debris (CWDsnag), contributes to forest carbon cycling; however, few studies have considered effects of differences in DOM types on the stand‐scale estimates of carbon stocks of necromass and CO2 efflux (Rstand). This study investigated characteristics of necromass and Rstand in a subtropical forest in Okinawa Island, Japan, to quantify the effect of DOM type on total necromass, total Rstand, and estimate error of total necromass and Rstand. The CWDsnag accounted for the highest proportion (54%) of total necromass (1499.7 g C m−2), followed by CWDlog (24%), FWD (11%), and leaf litter (11%). Leaf litter accounted for the highest proportion (37%) of total Rstand (340.6 g C m−2 year−1), followed by CWDsnag (25%), CWDlog (20%), and FWD (17%). The CWDsnag was distributed locally with 173% coefficient of variation for necromass, which was twofold higher than those of leaf litter and FWD (72%–73%). The potential error in CWD accounted for 99% and 79% estimate error for total necromass and Rstand, respectively. For the estimates of CWDsnag and CWDlog necromass with the estimates error of <10% in this study area, sampling areas of ≥28,750 m2 and ≥2058–42,875 m2, respectively, were required. Our results showed that CWD considerably contributed to stand‐scale carbon stocks and efflux among aboveground DOM in this forest, resulting in a major source of errors in the stand‐scale estimates.

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Organic carbon fluxes in the system soil-phytocenosis of bilberry-sphagnum spruce forest in the middle taiga zone of the Komi republic

Cited by 9 publications

References 3 publications

Intensification of cultivation of seedlings of Siberian spruce (Picea obovata Ledeb.) in the Southern Urals

Intensification of cultivation of seedlings of Siberian spruce (Picea obovata Ledeb.) in the Southern Urals

Estimation of Carbon and Nitrogen Contents in Forest Ecosystems in the Background Areas of the Russian Arctic (Murmansk Region)

Effects of differences in aboveground dead organic matter types on the stand‐scale necromass and CO₂ efflux estimates in a subtropical forest in Okinawa Island, Japan

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Organic carbon fluxes in the system soil-phytocenosis of bilberry-sphagnum spruce forest in the middle taiga zone of the Komi republic

Cited by 9 publications

References 3 publications

Intensification of cultivation of seedlings of Siberian spruce (Picea obovata Ledeb.) in the Southern Urals

Intensification of cultivation of seedlings of Siberian spruce (Picea obovata Ledeb.) in the Southern Urals

Estimation of Carbon and Nitrogen Contents in Forest Ecosystems in the Background Areas of the Russian Arctic (Murmansk Region)

Effects of differences in aboveground dead organic matter types on the stand‐scale necromass and CO2 efflux estimates in a subtropical forest in Okinawa Island, Japan

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Effects of differences in aboveground dead organic matter types on the stand‐scale necromass and CO₂ efflux estimates in a subtropical forest in Okinawa Island, Japan