Stability of hydrolytic enzyme activity and microbial phosphorus during storage of tropical rain forest soils

Turner, Benjamín L.; Romero, Tania E.

doi:10.1016/j.soilbio.2009.11.029

Cited by 71 publications

(58 citation statements)

References 33 publications

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“…We cannot exclude the possibility that any effects from frozen storage may have masked biochar effects on enzyme activities in 2009 soils, however. Some have reported that freezing for longer than one month can cause a decline in enzyme activities (Turner and Romero, 2010), and we did observe lower enzyme activities in 2009 soils than in 2012 soils.…”

Section: Discussionsupporting

confidence: 53%

Contrasting effects of biochar versus manure on soil microbial communities and enzyme activities in an Aridisol

et al. 2016

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Section: Discussionsupporting

confidence: 53%

Contrasting effects of biochar versus manure on soil microbial communities and enzyme activities in an Aridisol

et al. 2016

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“…Soil samples were collected from soil containers to 2 cm depth, stored at 3°C and assayed within 3 days, which does not appear to greatly alter observed activities in tropical forest soils (Turner and Romero 2010). On the day of the assay, 2 g soil (dry weight basis) was added to 200 ml 1 mM NaN 3 solution and dispersed by stirring on a magnetic stir plate.…”

Section: Soil Nutrients Enzymes and Microbial Biomassmentioning

confidence: 99%

Priming and microbial nutrient limitation in lowland tropical forest soils of contrasting fertility

et al. 2011

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“…This was not expected to significantly influence activity based on previous studies of tropical mineral soils, which indicated that activities were relatively stable for up to 2 weeks of refrigerated storage (Turner and Romero 2010). On the day of the assay, 2 g soil (dry weight basis) was added to 200 ml of 1 mM NaN 3 and stirred for 10 min.…”

Section: Hydrolytic Enzyme Assaysmentioning

confidence: 99%

Biogeochemical processes along a nutrient gradient in a tropical ombrotrophic peatland

et al. 2010

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Biogeochemical properties, including nutrient concentrations, carbon gas fluxes, microbial biomass, and hydrolytic enzyme activities, were determined along a strong nutrient gradient in an ombrotrophic peatland in the Republic of Panama. Total phosphorus in surface peat decreased markedly along a 2.7 km transect from the marginal Raphia taedigera swamp to the interior sawgrass swamp, with similar trends in total nitrogen and potassium. There were parallel changes in the forest structure: basal area decreased dramatically from the margins to the interior, while tree diversity was greatest at sites with extremely low concentrations of readily-exchangeable phosphate. Soil microbial biomass concentrations declined in parallel with nutrient concentrations, although microbes consistently contained a large proportion (up to 47%) of the total soil phosphorus. Microbial C:P and N:P ratios and hydrolytic enzyme activities, including those involved in the cycles of carbon, nitrogen, and phosphorus, increased towards the nutrient-poor wetland interior, indicating strong belowground nutrient limitation. Soil CO 2 fluxes and CH 4 fluxes did not vary systematically along the nutrient gradient, although potential soil respiration determined on drained soils was lower from nutrient-poor sites. Soil respiration responded strongly to drainage and increased temperature. Taken together, our results demonstrate that nutrient status exerts a strong control on above and below-ground processes in tropical peatlands with implications for carbon dynamics and hence long term development of such ecosystems.

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Stability of hydrolytic enzyme activity and microbial phosphorus during storage of tropical rain forest soils

Cited by 71 publications

References 33 publications

Contrasting effects of biochar versus manure on soil microbial communities and enzyme activities in an Aridisol

Contrasting effects of biochar versus manure on soil microbial communities and enzyme activities in an Aridisol

Priming and microbial nutrient limitation in lowland tropical forest soils of contrasting fertility

Biogeochemical processes along a nutrient gradient in a tropical ombrotrophic peatland

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