Mechanisms of Carbon Sequestration in Soil Aggregates

Blanco‐Canqui, Humberto; Lal, Rattan

doi:10.1080/07352680490886842

Cited by 540 publications

(312 citation statements)

References 151 publications

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“…The same authors showed that afforestation increases the soc by 23% in the surface soil. The soc sequestration depends on forest species and management (del galdo et al, 2003;lal, 2002;lamlom, savidge, 2003;Blanco-canqui, lal, 2004). It is known that dominant tree species affect the availability and biochemical composition of organic matter inputs to soil (leckie et al, 2004) and different root systems also affect aggregation differently, in relation to different root properties, exudates and functions (chan, heenan, 1998).…”

Section: Introductionmentioning

confidence: 99%

Effect of afforestation of agricultural soils and tree species composition on soil physical characteristics changes

Vopravil¹,

Podrázský²,

Khel³

et al. 2014

Ekologia

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vopravil J., Podrázský v., Khel t., holubík o., vacek s.: Effect of afforestation of agricultural soils and tree species composition on soil physical characteristics changes. Ekológia (Bratislava), vol. 33, no. 1, p. 67-80, 2014. This paper deals with the evaluation of the effect of afforestation of previously arable land to soil characteristics changes. one of the main aims was to evaluate the effects of each forest species on the soil structure quality after afforestation. soil samples were taken at two climatically distinct subregions within the czech republic. Based on the different site conditions, two study sites were chosen at each locality for a total of four research sites. detailed soil survey and basic forest stand inventories were conducted at all four sites. The first locality was established in the rychnov nad Kněžnou district in the Protected landscape area of the orlické mountains (soil type a haplic cambisol). The second locality was established in the Prague-East district (soil type a haplic cambisol and a haplic stagnosol). afforestation had a positive influence on the soil physical characteristics which are important for the maintenance of soil stability. Forest cover has a major influence on increasing the soil porosity, by decreasing the reduced bulk density and increasing capillary and gravitational pores, which is crucial. afforestation was also found to be positively related to increases in soil organic matter content in different forms, both stable and unstable, and tendency of considerable soil organic matter accumulation not only in the layer of surface humus but also in the entire soil profiles of the research sites. The main contributor to soil improvement after afforestation is the formation of stable soil aggregates. This is typical also for spruce and pine cover.

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Section: Introductionmentioning

confidence: 99%

Effect of afforestation of agricultural soils and tree species composition on soil physical characteristics changes

Vopravil¹,

Podrázský²,

Khel³

et al. 2014

Ekologia

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“…Th e same authors found that aff orestation increases the SOC by 23% in the surface soil. SOC sequestration depends on forest species and management practices (Lal 2002;Del Galdo et al 2003;Lamlom, Savidge 2003;Blanco-Canqui, Lal 2004). Researchers have found that dominant tree species aff ect the availability and biochemical composition of organic matter inputs to soil (Leckie et al 2004).…”

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confidence: 99%

Effects of afforestation on soil structure formation in two climatic regions of the Czech Republic

Podrázský¹,

Holubík²,

Vopravil³

et al. 2015

J. For. Sci.

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ABSTRACT:The aim of this study was to determine the effect of agricultural land afforestation on soil characteristics. Two sites in two regions of the Czech Republic were evaluated, at lower as well as higher submountain elevations: in the regions of the Orlické hory Mts. and Kostelec nad Černými lesy, afforested, arable and pasture lands were compared for basic chemical and physical characteristics. It was determined: pH, CEC, exchangeable nutrients, SOC, bulk density, volume density, porosity (differentiated by pore size), water conductivity and soil aggregate stability. This study demonstrated the important influence of previous land use upon soil characteristics. The characteristics of the arable horizon can persist for many years; in forests, the mineral horizons (15-30 cm) can persist within 15-30 years after afforestation. Afforestation, which caused an increase in soil porosity by decreasing reduced bulk density and increasing capillary and gravitational pores (increasing the water-holding capacity and soil air capacity), is important for maintaining the soil stability. The positive effect on infiltration and retention capacity resulted not only from the presence of a forest overstorey, but also from the presence of permanent grass cover of pasture land.

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“…Overall, the soils are the largest C reservoir on Earth (Lal & Shukla 2004;Szombathová 2010). Also, soil aggregation seems to have an important effect on C supplies, and SOM and soil aggregate are closely linked (Blanco-Canqui & Lal 2004). Elliott and Coleman (1988) suggest that a major accumulator of organic matter may be various size fractions of soil aggregates.…”

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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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Mechanisms of Carbon Sequestration in Soil Aggregates

Cited by 540 publications

References 151 publications

Effect of afforestation of agricultural soils and tree species composition on soil physical characteristics changes

Effect of afforestation of agricultural soils and tree species composition on soil physical characteristics changes

Effects of afforestation on soil structure formation in two climatic regions of the Czech Republic

Stability of soil aggregates and their ability of carbon sequestration

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