Mineralization of organic matter and the carbon sequestration capacity of zonal soils

Семенов, В. М.; Иванникова, Л. А.; Kuznetsova, Tatyana; Семенова, Н. А.; Tulina, A. S.

doi:10.1134/s1064229308070065

Cited by 43 publications

(15 citation statements)

References 42 publications

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“…The results of Romanovskaja [31] show that the average loss of SOC from the abandoned arable land reached 0.46 Mg C ha -1 yr -1 , but the increase of SOC storages after seven years was expected. The great SOC stocks losses in the first years after a change from forest to arable land use are also reported by other researchers [5,32]. One possible reason may be the greater share of potentially mineralizable SOM in forest soils.…”

Section: Management Of Socsupporting

confidence: 76%

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Pedoecological Regularities of Organic Carbon Retention in Estonian Mineral Soils

Kõlli¹,

Köster²,

Kauer³

et al. 2010

IJG

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Soil organic carbon (SOC) retaining capacities of epipedon (EP), subsoil (SS) and soil cover (SC) as a whole, are soil type specific. Depending on individual and sites characteristics, the generalized humus status indices of soil types (EP and SC thickness and SOC stocks) may vary. Land use and land use change primarily influence the properties and fabric of the EP, but the humus status (SOC concentration and stock, fabric of horizons) of the SS remains practically unchangeable. The mean mineral soils SOC stocks, EP quality and SOC distribution in soil profiles depend mainly on the water regime, mineral composition (texture, calcareousness), development of eluvial processes and the land use peculiarities of soils. The mean area weighted SC SOC stock of Estonian mineral soils is 99.9 Mg ha -1 , thereby the mean hydromorphic soils SOC retention capacity considerably exceeds the SOC retention capacity of automorphic soils (means are accordingly 127.5 and 78.9 Mg ha -1 ). The sustainable management of SOC is based on adequate information about actual SOC stocks and theoretically established or optimal humus status levels of soil types. The aggregate of SOC retained in the mineral soils of Estonia (3,235,100 ha) amounts to 323 ± 46 Tg (1 Tg = 10 12 g). Approximately 42% of this is sequestered into stabilized humus, 40% into instable raw-humous material and 18% into forest (grassland) floor and shallow peat layers.

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Section: Management Of Socsupporting

confidence: 76%

“…One possible reason may be the greater share of potentially mineralizable SOM in forest soils. According to Semenov et al [32] the share of easily mineralizable SOM in sod-podzolic forest and arable soils forms, respectively, 6.0% and 3.2% of total SOM.…”

Section: Management Of Socmentioning

confidence: 99%

Pedoecological Regularities of Organic Carbon Retention in Estonian Mineral Soils

Kõlli¹,

Köster²,

Kauer³

et al. 2010

IJG

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show abstract

“…The results of Romanovskaya (2006) show that the average loss of SOC from abandoned arable land reaches 0.46 Mg C ha ' yr ', but an increase in SOC storage after a couple of years can be expected. Great SOC stock losses in the first years after a change from forest to arable land use are also reported by other researchers (Percival et al, 2000;Semenov et al, 2008). One of the possible reasons is the greater share of potentially mineralizable organic matter in forest soils.…”

Section: Annual Fluxes Of Socsupporting

confidence: 56%

Stocks and annual fluxes of organic carbon in the mineral soil cover of Estonia

Kõlli

Tamm²,

Astover³

2011

Estonian J. Ecol.

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Annual cycling of soil organic carbon (SOC) is the main driving force in the formation and functioning of soil cover. Therefore knowledge about it forms the scientific base for sustainable management and ecologically sound soil protection. Systematized parameters of the mean annual cycling of SOC by soils are analysed on the basis of the SOC stock densities (Mg ha ') of 16 mineral soil groups. The SOC stocks according to soil groups for the soil cover (solum) as a whole and for their epipedon were calculated on the basis of mean SOC densities and their distribution area of soil types. In the Estonian mineral soil cover (32 351 km^) a total of 323±46 Tg (lO'^ g) SOC is retained; 42% of this is sequestered into stabilized humus, 40% into unstable raw humus, and 18% into forest (grassland) floor and shallow peat layers. Of the total SOC stock, 75% is situated in biologically active epipedons and 25% in subsoil. The annual SOC inputs and outputs in natural soils, which were calculated on the basis of annual productivity, ranged from 0.2 to 3.6 Mg ha ' yr'. The influence of land management peculiarities on the annual cycling and balance of SOC has been demonstrated by our own experimental research, as well as by data published in the literature. In this work the pedo-ecological causal regularities of SOC sequestration in mineral soil cover (SOC concentration, soil thickness, moisture regime, texture, carbonate content), and agro-technological possibilities for its regulation (crops and their rotation, level of subsidization and soil amelioration) are discussed.

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“…Soil management practices had a statistically significant influence on the carbon sequestration capacities in the size fractions of WSA (Šimanský 2013b). Semenov et al (2008) showed that the CSC values in arable soil are higher than in the soils of natural ecosystems. Therefore, from the point of view of carbon sequestration, such methods of management (for example the application of organic fertilizers and crop residues, minimal tillage or no-tillage, etc.)…”

Section: Resultsmentioning

confidence: 99%

Stability of soil aggregates and their ability of carbon sequestration

Šimanský¹,

Bajčan²

2014

Soil & Water Res.

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AbstractŠimanský V., Bajčan D. (2014): Stability of soil aggregates and their ability of carbon sequestration. Soil & Water Res., 9: 111-118.One of the most important binding agents for forming stable aggregates is a soil organic matter (SOM), which can be retained in various size fractions of aggregates. If aggregates are water-resistant, they retain more carbon. Therefore, the aim of this study was to evaluate the stability of aggregates and their ability of carbon sequestration in different soil types and soil management systems in Slovakian vineyards. The highest content of water-stable macro-aggregates (WSA ma ) was determined in Cambisols, and the lowest in Fluvisols. The highest content of WSA ma (size fraction 0.5-3 mm) was determined in Chernozems, decreasing within the following sequence: Fluvisols > Leptosols > Cambisols > Luvisols. The soil type had a statistically significant influence on the re-distribution of soil organic matter in size fractions of water-stable aggregates. The highest content of SOM in water-stable aggregates of the vineyards was determined in grassy strips in-between the vineyard rows in comparison to intensively cultivated rows of vineyard. The highest values of carbon sequestration capacity (CSC) in WSA ma were found in Cambisols > Leptosols and the lowest values of CSC were in Fluvisols. The microaggregates represented a significant carbon reservoir for the intensively cultivated soils (rows of vineyard). On the other hand, increasing of macro-aggregates (size fraction 0.5-3 mm) was characteristic for grassland soils (between the rows of vineyard).

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Mineralization of organic matter and the carbon sequestration capacity of zonal soils

Cited by 43 publications

References 42 publications

Pedoecological Regularities of Organic Carbon Retention in Estonian Mineral Soils

Pedoecological Regularities of Organic Carbon Retention in Estonian Mineral Soils

Stocks and annual fluxes of organic carbon in the mineral soil cover of Estonia

Stability of soil aggregates and their ability of carbon sequestration

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