Microcalorimetric study of changes in the microbial activity in a humic Cambisol after reforestation with eucalyptus in Galicia (NW Spain)

Núñez-Regueira, Lisardo; Rodríguez-Añón, J. A.; Proupı́n-Castiñeiras, J.; Núñez-Fernández, O.

doi:10.1016/j.soilbio.2005.04.031

Cited by 47 publications

(16 citation statements)

References 17 publications

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“…The reference ampoule was filled with 1.0 cm 3 of sterilized distilled water. The results obtained using water agreed reasonably well with those obtained using a reference soil (Lisardo et al 2006).…”

Section: Microcalorimetric Measurementssupporting

confidence: 81%

Chemical properties, microbial biomass, and activity differ between soils of organic and conventional horticultural systems under greenhouse and open field management: a case study

Nie

et al. 2010

J Soils Sediments

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Section: Microcalorimetric Measurementssupporting

confidence: 81%

Chemical properties, microbial biomass, and activity differ between soils of organic and conventional horticultural systems under greenhouse and open field management: a case study

Nie

et al. 2010

J Soils Sediments

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“…5b). These results were consistent with previous studies which suggested that shorter lag phases, lower peak times (t max ), higher P max and greater growth rate constant (k) were all good indicators of the high microbial metabolic activity in a microcalorimetric analysis (Barros et al 1997;Núñez-Regueira et al 2006b;Zheng et al 2009;Zheng et al 2007). This indicated that enhanced UV-B radiation would change the quantity and quality of soil microbes to a certain extent and prefer to inhibition.…”

Section: Soil Microbial Activitysupporting

confidence: 93%

“…Microcalorimetric technique is sensitive enough to detect very low heat rates and can provide qualitative and quantitative indicators of soil microbial activity (Barros et al 1997;Núñez-Regueira et al 2006b). This method had been applied in soil environments subjected to various factors such as land-use, heavy metal and pesticides (Barros et al 2006;Núñez-Regueira et al 2006a;Prado and Airoldi 2002;Zheng et al 2009).…”

Section: Soil Microbial Activitymentioning

confidence: 99%

Effects of enhanced UV-B radiation on the diversity and activity of soil microorganism of alpine meadow ecosystem in Qinghai–Tibet Plateau

Niu

Zhang

et al. 2014

Ecotoxicology

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The effects of enhanced UV-B radiation on abundance, community composition and the total microbial activity of soil bacteria in alpine meadow ecosystem of Qinghai-Tibet Plateau were investigated. Traditional counting and 16S rRNA gene sequencing were used to investigate the culturable bacteria and their composition in soil, meanwhile the total microbial activity was measured by microcalorimetry. The population of soil culturable bacteria was slightly reduced with the enhanced UV-B radiation in both of the two depths, 2.46 × 10(6) CFU/g in upper layer (0-10 cm), 1.44 × 10(6) CFU/g in under layer (10-20 cm), comparing with the control (2.94 × 10(6) CFU/g in upper layer, 1.65 × 10(6) CFU/g in under layer), although the difference was not statistically significant (P > 0.05). However, the bacteria diversity decreased obviously due to enhanced UV-B, the number of species for upper layer was decreased from 20 to 13, and from 16 to 13 for the lower layer. The distribution of species was also quite different between the two layers. Another obvious decrease induced by enhanced UV-B radiation was in the total soil microbial activities, which was represented by the microbial growth rate constant (k) in this study. The results indicated that the culturable bacteria community composition and the total activity of soil microbes have been considerably changed by the enhanced UV-B radiation.

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“…Rainfall averages 467 mm per year with 78.5% falling between June and September. The elevation, slope gradient, slope aspect and slope position of the site are 880-887 m, [16][17][18].5˝, north, middle backslope, respectively. The parent material is Mesozoic intrusive and extrusive limestone [33].…”

Section: Study Areamentioning

confidence: 99%

Soil Enzyme Activities in Pinus tabuliformis (Carriére) Plantations in Northern China

Wang

Page‐Dumroese

et al. 2016

Forests

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Changes in forest stand structure may alter the activity of invertase, urease, catalase and phenol oxidase after thinning Pinus tabuliformis (Carriére) plantations in Yanqing County of Beijing, China. We examined changes in these soil enzymes as influenced by time since thinning (24, 32, and 40 years since thinning) for 3 seasons (spring, summer and autumn) following harvesting at two depths in the mineral soil (0-10 cm and 10-20 cm). Invertase and urease increased significantly with time since thinning. Catalase activity was highest in the 24-year-old stand and there were no statistically significant differences between the 32-and 40-year-old stands. In addition, maximum invertase, urease, catalase, and phenol oxidase activities occurred during the summer; minimum activities occurred in autumn. Invertase and urease were positively correlated with each other, as were catalase and phenol oxidase. Most soil enzyme activity was higher in the 0-10 cm layer than at the 10-20 cm depth. As time from thinning increased, differences among soil depth became less significant. These results suggest that seasonal changes of these enzymes have different roles, as the time since thinning and thinning treatments may have both short-and long-term impacts on soil microbial activity.

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Microcalorimetric study of changes in the microbial activity in a humic Cambisol after reforestation with eucalyptus in Galicia (NW Spain)

Cited by 47 publications

References 17 publications

Chemical properties, microbial biomass, and activity differ between soils of organic and conventional horticultural systems under greenhouse and open field management: a case study

Chemical properties, microbial biomass, and activity differ between soils of organic and conventional horticultural systems under greenhouse and open field management: a case study

Effects of enhanced UV-B radiation on the diversity and activity of soil microorganism of alpine meadow ecosystem in Qinghai–Tibet Plateau

Soil Enzyme Activities in Pinus tabuliformis (Carriére) Plantations in Northern China

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