Soil Organic Matter Fractions and Aggregate Distribution In Response to Tall Fescue Stands

Handayani, Iin; Coyne, Mark S.; Tokosh, R. S.

doi:10.3923/ijss.2010.1.10

Cited by 26 publications

(14 citation statements)

References 38 publications

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“…The proportion of POM-C to TOC followed the order native forest > citrus > banana, in the topsoil layer, and ranged from 13.4 to 35.2%, higher than the range reported by Handayani et al (2010). Percentage of POM in the native forest soil did not change with depth.…”

Section: Methodsmentioning

confidence: 53%

Manejo da matéria orgânica do solo e estoques de carbono em cultivos de frutas tropicais

Guimarães¹,

Gonzaga²,

Neto³

2014

Rev. bras. eng. agríc. ambient.

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The main objective of this study was to investigate changes in carbon dynamics and stocks in agricultural soils. Soil samples were collected at 0-10 cm and 10-30 cm depths in two agricultural areas (cultivated with banana (Musa spp.), and cultivated with citrus (Citrus sinensis). A native forest soil was used as a reference and to determine the carbon pool management index. Organic matter was physically fractionated into particulate organic matter (> 53 µm) and complexed organic matter (< 53 µm). Analysis of total organic carbon was run to characterize soil organic matter. Comparing to the native forest soil, the banana cultivation increased the total soil organic carbon content (TOC) in approximately 14% while citrus cultivation reduced the TOC content in about 38%. The cultivated soils reduced the particulate organic matter fraction in more than 50%, showing a higher decomposition rate of the organic residues. The Carbon Management Index values were lower than 1 in all treatments, however the best results were observed for the citrus orchard (116.5). Overall, the change in land use from native forest to fruit crops reduced soil organic matter content, especially its labile fraction, and reduced soil quality.Manejo da matéria orgânica do solo e estoques de carbono em cultivos de frutas tropicais R E S U M OCom este trabalho objetivou investigar as mudanças na dinâmica e no estoque de carbono em solos agrícolas. Amostras de solo foram coletadas de 0-10 cm e 10-30 cm, em duas áreas agrícolas (cultivo de banana (Musa spp) e cultivo de citros (Citrus sinensis). Um solo em floresta nativa foi utilizado como referência e para determinação do Índice de Manejo de Carbono (IMC). A matéria orgânica do solo (MOS) foi fracionada fisicamente em particulada (MOP, > 53 µm) e complexada (MOC, < 53 µm). O carbono orgânico total (COT) foi analisado para caracterizar a MOS. Comparando com o solo em mata nativa o cultivo da banana aumentou o teor de carbono orgânico do solo (TOC) em aproximadamente 14% enquanto o cultivo de citros reduziu o teor de TOC em cerca de 38%. O cultivo de fruteiras reduziu a fração particulada em mais de 50% mostrando uma velocidade de decomposição maior dos resíduos orgânicos. Os valores do Índice de Manejo de Carbono foram menores que 1 em todos os tratamentos; entretanto, foram observados os melhores resultados para o pomar de citros (116,5). No geral, a mudança no uso da terra de mata nativa para culturas de frutas reduziu o teor de matéria orgânica do solo, especialmente sua fração lábil, e a qualidade do solo.

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Section: Methodsmentioning

confidence: 53%

Manejo da matéria orgânica do solo e estoques de carbono em cultivos de frutas tropicais

Guimarães¹,

Gonzaga²,

Neto³

2014

Rev. bras. eng. agríc. ambient.

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“…Furthermore, enhanced microbial biomass preferentially enriched large aggregates [76], which caused the weight percentage of large aggregates to be more closely associated with SMBC, as shown in our results (Table 4). It was reported that more than 50% of the SMBC content of the total soil [77], and 33% more soil C [78], were associated with the large aggregates (Ø > 2 mm). The C mineralization rate was also higher in the large aggregates in contrast to the small aggregates, due to their relatively higher microbial activities [79].…”

Section: Discussionmentioning

confidence: 99%

Soil Aggregation and Organic Carbon Dynamics in Poplar Plantations

Fang

Chen

et al. 2018

Forests

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Soil resident water-stable macroaggregates (diameter (Ø) > 0.25 mm) play a critical role in organic carbon conservation and fertility. However, limited studies have investigated the direct effects of stand development on soil aggregation and its associated mechanisms. Here, we examined the dynamics of soil organic carbon, water-stable macroaggregates, litterfall production, fine-root (Ø < 1 mm) biomass, and soil microbial biomass carbon with stand development in poplar plantations (Populus deltoides L. ‘35’) in Eastern Coastal China, using an age sequence (i.e., five, nine, and 16 years since plantation establishment). We found that the quantity of water-stable macroaggregates and organic carbon content in topsoil (0–10 cm depth) increased significantly with stand age. With increasing stand age, annual aboveground litterfall production did not differ, while fine-root biomass sampled in June, August, and October increased. Further, microbial biomass carbon in the soil increased in June but decreased when sampled in October. Ridge regression analysis revealed that the weighted percentage of small (0.25 mm ≤ Ø < 2 mm) increased with soil microbial biomass carbon, while that of large aggregates (Ø ≥ 2 mm) increased with fine-root biomass as well as microbial biomass carbon. Our results reveal that soil microbial biomass carbon plays a critical role in the formation of both small and large aggregates, while fine roots enhance the formation of large aggregates.

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“…The values were considered slightly higher compared to the results from Handayani et al, (2010) for monoculture land as much as 2.24 g kg soil. These values were in the range as reported by Koutika et al, (2001) and Oedraogo et al, (2006) which ranged from 15-22 g kg -1 and 1.1-2.7 g kg -1…”

Section: Discussionmentioning

confidence: 83%

“…Active fraction of organic matter plays an important role in the plant nutrient supply, decomposition of organic residues, and the development of soil structure (Franlzluebbers, 2002). Heightened levels of POM-C and POM-N will increase the potential availability of C and N, thus, they will increase soil fertility and quality (Handayani et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Particulate Organic Matter as a Soil Quality Indicator of Sugarcane Plantations in East Java

Nurhidayati¹,

Arisoesialaningsih²,

Suprayogo³

et al. 2012

Agrivita.J.Agr.Sci

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Soil Organic Matter Fractions and Aggregate Distribution In Response to Tall Fescue Stands

Cited by 26 publications

References 38 publications

Manejo da matéria orgânica do solo e estoques de carbono em cultivos de frutas tropicais

Manejo da matéria orgânica do solo e estoques de carbono em cultivos de frutas tropicais

Soil Aggregation and Organic Carbon Dynamics in Poplar Plantations

Particulate Organic Matter as a Soil Quality Indicator of Sugarcane Plantations in East Java

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