Effect of fire on soil C, N and microbial biomass

Palese, Assunta Maria; Giovannini, G.; Lucchesi, Sergio; Dumontet, Stefano; Perucci, P.

doi:10.1051/agro:2003061

Cited by 52 publications

(21 citation statements)

References 31 publications

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“…It also exposes soil to leaching and erosion 4 . The activities of soil enzymes such as dehydrogenase, oxidase, lipases, urease and alkaline phosphatases are reduced or inhibited 5 .…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Properties and Enzymes Activity Studies in a Refined Oil Contaminated Soil in Isiukwuato, Abia State, Nigeria

Akubugwo¹,

Ogbuji²,

Chinyere³

et al. 2010

Biokemistri

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Soil Physicochemical properties and enzyme concentration were evaluated in soil from a refined-oil contaminated community in Isiukwuato, Abia State three years after the spill. The soil enzymes examined were urease, lipase, oxidase, alkaline and acid phosphatases. Results show a significant (P< 0.05) decrease in the activities of these enzymes in the contaminated soil relative to the control. Soil temperature, Organic Carbon(OC), Organic Matter (OM), Exchangeable Acidity (EA), Saturation Base (SB) and Effective Cation Exchangeable Capacity (ECEC) were significantly higher (p<0.05) in the polluted soil. Soil Nitrogen (N), Phosphorus (P), Calcium (Ca) and Magnesium (Mg) were also elevated in contaminated soil. These results suggest that the soil is not yet suitable for agricultural activity

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“…It also exposes soil to leaching and erosion 4 . The activities of soil enzymes such as dehydrogenase, oxidase, lipases, urease and alkaline phosphatases are reduced or inhibited 5 .…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Properties and Enzymes Activity Studies in a Refined Oil Contaminated Soil in Isiukwuato, Abia State, Nigeria

Akubugwo¹,

Ogbuji²,

Chinyere³

et al. 2010

Biokemistri

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“…Fire can also affect a soil microbial community directly by promoting decay and death of heat-sensitive microbes and indirectly by altering soil physicochemical properties (e.g., carbon quality, mineral nutrients, and bulk density) (Neary et al 1999;De Marco et al 2005). Soil microbial biomass and abundance decreased significantly after high-intensity fire (Andersson et al 2004;Palese et al 2004;Dooley and Treseder 2012). The fire may also partly decrease soil microbial biomass and diversity in G1 and G2 Eucalyptus plantations.…”

Section: Discussionmentioning

confidence: 99%

Non-linear impacts of Eucalyptus plantation stand age on soil microbial metabolic diversity

et al. 2013

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Purpose Although it is generally accepted that planting exotic plant species alters metabolic function of soil microbial communities, its temporal dynamic is often ignored when evaluating ecological effects of associated land use changes. To investigate the dynamic impacts of successive Eucalyptus planting on carbon metabolic activities of soil microbial communities, we studied community-level physiological profiles of soil microbial communities in different generations of Eucalyptus plantations. Materials and methods We studied community-level physiological profiles of soil microbial communities, using the Biolog™ Ecoplates incubation, in adjacent first (G1), second (G2), third (G3), and fourth (G4) generation Eucalyptus plantations that were, respectively, aged 3, 8, 14, and 19 years in Guangxi province, southern China. We used the 'space-fortime substitution' approach to investigate the impact of stand age of exotic Eucalyptus plantations on carbon metabolic diversity and activities of soil microbial communities. For each Eucalyptus plantation generation, three experimental plots were randomly selected. In each plot, one composite soil sample from 0 to 10 cm in depth was obtained for the analyses. Results and discussion Single carbon source utilization varied with Eucalyptus plantation stand age. Among preselected 31 carbon sources, utilization of 17 carbon sources changed significantly, which was best described by a quadratic function (ten carbon sources) and an exponential function (seven carbon sources). As a result, cumulative averaged metabolic activity and metabolic diversity of soil microbial communities showed quadratic and exponential changes relative to Eucalyptus plantation stand age. The order of cumulative averaged carbon metabolic activity and metabolic diversity were G1>G4, G3>G2 and G1>G2>G3, G4 (p<0.05), respectively. The factors contributing to carbon source utilization structure of soil microbial communities for different stand ages of Eucalyptus plantations were shrub richness, soil organic carbon content, microbial biomass carbon, C-to-N ratio, and N-to-P ratio. Conclusions Eucalyptus plantation stand age has inconsistent non-linear impacts on two aspects of soil microbial metabolic function: (1) quadratic impacts on carbon metabolic efficiency and (2) exponential impacts on carbon metabolic diversity. The decreasing carbon metabolic diversity has no significant impact on carbon metabolic efficiency during successive Eucalyptus plantings. The results show that the importance of assessing long-term impacts of land use changes on soil microbial communities from exotic plantations by quantifying multi-aspect non-linear changes on soil microbial metabolic function.

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“…The incidence of oil spillage in different parts of the world leads to serious problems and increases hazards to the environment. Crude oil pollution also leads to the deterioration of soil structure, loss of organic matter contents, loss of soil mineral nutrients, and also exposes soil to leaching and erosion (Palese et al, 2003). The activities of soil enzymes such as dehydrogenases, oxidases, lipases, ureases and alkaline phosphatase are reduced or inhibited.…”

Section: Introductionmentioning

confidence: 99%

Effect of wasterwater sludge application on enzyme activities in soil contaminated with crude oil

Dindar

Topaç

Başkaya

et al. 2017

J. Soil Sci. Plant Nutr.

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Crude oil affects soil ecosystems, resulting in significant losses in soil quality. The objective of the present study was to evaluate the effects of hydrocarbon pollution (crude oil) on soil enzyme activities and determine the removal of total petroleum hydrocarbons (TPH) during an incubation period of 150 days. The potential use of wastewater sludge as a biostimulating agent in petroleum-contaminated soils was also evaluated. The degradation of crude oil in contaminated soil was significantly enhanced after the addition of wastewater sludge.The results also indicated that significant TPH degradation in crude oil-contaminated soils (80% for dose of 0.5% and 83% for dose of 5% at 18 °C) (94% for dose of 0.5% and 92% for dose of 5% at 28 °C) occurred after an incubation period of 150 days. Enhanced enzyme activity levels in contaminated soils indicated that crude oil (0.5% and 5%, w/w) stimulated microbial growth and enzyme activity in the soil environment. Urease activity (UA) levels in crude oil contaminated soils were generally higher than initial UA levels in soil during the incubation period. Soil UA exhibited a stronger response to petroleum treatment. Alkaline phosphatase (APA) and β-Glucosidase (BGA) activities were not affected crude oil pollution. However, contamination of crude oil had a negatively effect on soil dehydrogenase activity (DHA).

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Effect of fire on soil C, N and microbial biomass

Cited by 52 publications

References 31 publications

Physicochemical Properties and Enzymes Activity Studies in a Refined Oil Contaminated Soil in Isiukwuato, Abia State, Nigeria

Physicochemical Properties and Enzymes Activity Studies in a Refined Oil Contaminated Soil in Isiukwuato, Abia State, Nigeria

Non-linear impacts of Eucalyptus plantation stand age on soil microbial metabolic diversity

Effect of wasterwater sludge application on enzyme activities in soil contaminated with crude oil

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