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I. I. Vasenev

Bio: I. I. Vasenev is an academic researcher from Russian State Agricultural University. The author has contributed to research in topics: Soil carbon & Soil respiration. The author has an hindex of 9, co-authored 12 publications receiving 220 citations. Previous affiliations of I. I. Vasenev include Peoples' Friendship University of Russia.

Papers
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Journal ArticleDOI
01 Aug 2013-Catena
TL;DR: In this paper, the authors studied the urban topsoil organic carbon (SOC) in comparison with agricultural and natural areas for the Moscow region (Russia) through stratified random sampling and found that the urban environment has a unique set of specific features and processes (e.g., soil sealing, functional zoning, settlement history).
Abstract: Soils hold the largest carbon stock in terrestrial ecosystems. Soil organic carbon (SOC) is formed under a combination of bioclimatic and land-use conditions. Therefore, one would expect changes in SOC stocks with land use changes like urbanization. So far, the majority of regional studies on SOC stocks exclude urban areas. The urban environment has a unique set of specific features and processes (e.g., soil sealing, functional zoning, settlement history) that influence SOC stocks and its spatial variability. This study aims to improve our understanding of urban SOC in comparison with agricultural and natural areas for the Moscow region (Russia). SOC content was studied in different land use types, soils, and urban zones through stratified random sampling. Samples of topsoil (0–10 cm) and subsoil (10–150 cm) were taken at 155 locations. SOC contents were significantly higher in urban areas compared with non-urban areas (3.3 over 2.7%). Further analyses proved that the difference can be explained by the so-called “cultural layer”, which is the result of human residential activity and settlement history. SOC contents in the urban environment presented a very high spatial heterogeneity with standard deviations of urban SOC considerably higher than those for agricultural and natural areas. Soil depth, soil type and land-use factors had a significant influence on SOC variability determining more than 30% of the total variance. SOC contents in urban topsoil were mostly determined by soil type. In natural and agricultural areas soil type and land-use determined SOC contents. The results confirm the unique character of urban SOC and the need to reconsider established scientific and management views on regional SOC assessment, taking into account the role of urban carbon stocks.

84 citations

Journal ArticleDOI
01 Aug 2014-Geoderma
TL;DR: In this article, the authors adapted the digital soil mapping (DSM) approach to map topsoil and subsoil organic carbon (SOC) stocks in a highly urbanized region.

44 citations

Journal ArticleDOI
TL;DR: In this paper, the authors analyzed changes in organic carbon stocks and CO2 emissions at the experimental turf grasses in the Moscow megapolis during the three years period after establishment, and the highest ratio of sequestered and emitted C was obtained for the thick turf grass soil constructions with a 20 cm organic layer.
Abstract: Urbanization coincides with remarkable expansion of turf grasses and their increasing role in environmental processes and functions, including carbon (C) sequestration. Soil organic carbon (SOC) stocks in turf grass soils are substantial, however, an intensive soil respiration is also likely. Therefore C sequestration in turf grasses remains uncertain, especially at the early stages after development, when C uptake and CO2 emissions are unbalanced. We analyzed changes in SOC stocks and CO2 emissions at the experimental turf grasses in Moscow megapolis during the three years period after establishment. An influence of the three contrast depths of organic layers (5, 10 and 20 cm) on soil and biomass C and on the ornamental functions of turf grasses was studied. Total CO2 emission from the turf grasses during the observation period exceeded C uptake in grass and root biomass by two to three times. Therefore the turf grasses at the early stages of development are important source of biogenic C. Although the C losses were substantial, CO2 emission decreased and C uptake in biomass increased by the end of the observation period. The highest ratio of sequestered and emitted C was obtained for the thick turf grass soil constructions with a 20 cm organic layer. The highest ornamental value, indicated by the projective cover and sprout density, was also obtained for the thick turf grasses, which is essential to consider for developing the best management practices and sustainable turf grass soil constructions.

34 citations

Journal ArticleDOI
01 Nov 2017-Catena
TL;DR: In this paper, a two-year study focused on soil organic carbon (SOC) stocks and CO 2 emissions of urban soils in the city of Kursk in the Central Chernozemic region of Russia, an area known to have some of the most fertile soil in the world.
Abstract: C-sequestration, as a function of soils, is known to help mitigate climate change. However, the potential of urban soils to be C-sinks or sources, is widely unknown. This study aims to understand the role and significance of urban soils in the C-balance of the region. It reveals several important findings about the C-balance capacities of urban soils and the multiple factors affecting this balance. This two-year study focused on soil organic carbon (SOC) stocks and CO 2 emissions of urban soils in the city of Kursk, located in the Central Chernozemic region of Russia, an area known to have some of the most fertile soils in the world. SOС stocks and emissions were studied in residential, recreational, and industrial functional zones and in comparison to corresponding natural reference soils to analyze the influence of urbanization on C turnover Urban soils were found to store 20 to 50 kg С m − 2 in 1.5 m layer; 10–30% less than in corresponding natural Luvic Chernozems and Chernic Phaeozems, but greater than what has been reported for many other cities. The urban soils with developed cultural layers stored more C in subsoil compared to the natural soils. Emissions of CO 2 in urban soils, however, were higher than from Chernic Phaeozems but comparable to those from Luvic Chernozems. The CO 2 /SOC stocks ratio in urban soils was two–three times higher than in natural soils. These outcomes point to the intensive C turnover and low sustainability of SOC stocks in urban soils. This study found evidence that the recent urbanization of the Chernozemic region has adversely affected the C balance. Natural soils in the region are important C sinks, however they can convert to C sources in result of urbanization.

26 citations

Journal ArticleDOI
TL;DR: In this paper, a comparative analysis of the spatial-temporal trends in the emission of CO2 from soils of different functional zones of the city of Kursk, a dark gray soil of an oak forest, and a typical steppe chernozem has been performed.
Abstract: A comparative analysis of the spatial-temporal trends in the emission of CO2 from soils of different functional zones of the city of Kursk, a dark gray soil of an oak forest, and a typical steppe chernozem has been performed. The averaged CO2 emission from the urban soils is 25% higher than that from the natural soils (32.1 ± 17.8 and 17.8 ± 10.2 g CO2/m2 daily, respectively). The spatial heterogeneity of the CO2 emission is also significantly higher for the urban soils, while variation in temporal dynamics of soil respiration among the studied ecosystems was insignificant.

24 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, a categorization of soils of urbanized areas, i.e., areas strongly affected by human activities, according to their ecosystem services, is proposed, and the characteristics and number of services provided by soil groups of urbanised areas and their importance are given for each soil group.
Abstract: The sustainable use and management of global soils is one of the greatest challenges for the future. In the urban ecosystem, soils play an essential role with their functions and ecosystem services. However, they are still poorly taken into consideration to enhance the sustainable development of urban ecosystems. This paper proposes a categorization of soils of urbanized areas, i.e., areas strongly affected by human activities, according to their ecosystem services. Focus is put first on ecosystem services provided by non-urban soils. Then, the characteristics and number of services provided by soil groups of urbanized areas and their importance are given for each soil group. Soils of urbanized areas are here defined as SUITMAs, because they include soils of urban, sensu stricto, industrial, traffic, mining, and military areas. This definition refers to a large number of soil types of strongly anthropized areas. SUITMAs were organized in four soil groups, i.e., (1) pseudo-natural soils, (2) vegetated engineered soils, (3) dumping site soils, and (4) sealed soils. For each soil group, examples for ecosystem services were given, evaluated, and ranked. This proposal contributes to foster the dialogue between urban spatial planning and soil scientists to improve both soil science in the city and recognition of SUITMAs regarding their role for the sustainable development of urban ecosystems and, in particular, to enhance multifunctional soils in urban areas.

249 citations

Journal ArticleDOI
19 Aug 2014-PLOS ONE
TL;DR: The approach is more reliable as it adopted a robust quantification technique and mapped the spatial distribution of SOC stock and prediction uncertainty and the data and high-resolution maps could be used for future soil carbon assessment and inventories.
Abstract: Estimation of carbon contents and stocks are important for carbon sequestration, greenhouse gas emissions and national carbon balance inventories. For Denmark, we modeled the vertical distribution of soil organic carbon (SOC) and bulk density, and mapped its spatial distribution at five standard soil depth intervals (0−5, 5−15, 15−30, 30−60 and 60−100 cm) using 18 environmental variables as predictors. SOC distribution was influenced by precipitation, land use, soil type, wetland, elevation, wetness index, and multi-resolution index of valley bottom flatness. The highest average SOC content of 20 g kg−1 was reported for 0−5 cm soil, whereas there was on average 2.2 g SOC kg−1 at 60−100 cm depth. For SOC and bulk density prediction precision decreased with soil depth, and a standard error of 2.8 g kg−1 was found at 60−100 cm soil depth. Average SOC stock for 0−30 cm was 72 t ha−1 and in the top 1 m there was 120 t SOC ha−1. In total, the soils stored approximately 570 Tg C within the top 1 m. The soils under agriculture had the highest amount of carbon (444 Tg) followed by forest and semi-natural vegetation that contributed 11% of the total SOC stock. More than 60% of the total SOC stock was present in Podzols and Luvisols. Compared to previous estimates, our approach is more reliable as we adopted a robust quantification technique and mapped the spatial distribution of SOC stock and prediction uncertainty. The estimation was validated using common statistical indices and the data and high-resolution maps could be used for future soil carbon assessment and inventories.

234 citations

01 Jan 2016
TL;DR: In this article, the atmospheric boundary layer flows their structure and measurement, but end up in malicious downloads, rather than enjoying a good book with a cup of coffee in the afternoon, instead they are facing with some malicious virus inside their laptop.
Abstract: Thank you very much for reading atmospheric boundary layer flows their structure and measurement. As you may know, people have search numerous times for their chosen books like this atmospheric boundary layer flows their structure and measurement, but end up in malicious downloads. Rather than enjoying a good book with a cup of coffee in the afternoon, instead they are facing with some malicious virus inside their laptop.

220 citations

Journal ArticleDOI
15 Oct 2019-Geoderma
TL;DR: The environmental covariates that have been identified as the most important by RF technique in recent years in regard to digital mapping of SOC are revealed, which may assist in selecting optimum sets of environmental covariate for mapping SOC.

185 citations

Journal ArticleDOI
01 Dec 2007-Catena
TL;DR: In this paper, a theoretical grouping of the pedogenic processes according to their essence and self-termination or quasi-equilibrium is proposed, and the diagnostic soil horizons (as defined in WRB) are perceived as more or less stable and mature degrees of soil self-development.
Abstract: The essence of pedogenesis, as a synergetic process, consists in generation, selection, accumulation and differentiation of the solids produced in the course of bio-abiotic processes functioning within a soil body. Soil formation in the broad sense is the result of synergetic processes of self-organization of an in situ soil system during its functioning in time and space. Soil formation, sensu stricto , is the transformation of the solid-phase lithomatrix (parent material) of the soil system into the pedomatrix (soil body, soil mantle). Pedogenesis is perceived as an integration of specific pedogenic processes (SPP); each of them characterized by a definite set of solid-phase pedogenic features. Each soil body is formed by a combination of some SPP. The whole set of SPP may be grouped in accordance with their essence, characteristic times (rates) and reversibility-irreversibility. In terms of characteristic times (rates) they may be arranged in three main groups: rapid (10 1–2 years), medium-rate (10 3–4 years), and slow (10 5–6 years). Soil system functioning and soil formation are intimately linked but fundamentally different processes: the former is infinite in time, if not interrupted by external factors; the latter, as any self-organization process, is finite in time and tends to reach a steady state. The theoretical grouping of the pedogenic processes according to their essence and self-termination or quasi-equilibrium is proposed. All the diagnostic soil horizons (as defined in WRB) are perceived as more or less stable and “mature” degrees of soil self-development. They may be separated into favorable and unfavorable with respect to their suitability for biota. Favorable conditions are generally common in 12 out of 39 diagnostic horizons and properties (32%). They are mainly influenced by biotic fluxes and cycles, which are comparable to, or exceed, abiotic fluxes and cycles in their strength and capacity. In this case, biota transforms and improves the environment rather than adapts to it. Unfavorable conditions are more common in 27 out of 39 diagnostic horizons and properties (68%). They are influenced by the mutual action both of biotic and abiotic fluxes and cycles. In this case, biota adapts to the environment rather than improves it.

143 citations