Soil microbial activities in tree-based cropping systems and natural forests of the Central Amazon, Brazil

Menyailo, O. V.; Lehmann, Johannes; Cravo, M. da S.; Zech, Wolfgang

doi:10.1007/s00374-003-0631-4

Cited by 37 publications

(13 citation statements)

References 20 publications

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“…There are a number of hypothesis immediately suggested by the literature, but on close examination, many of these seem implausible. In tropical forests, for example, differences in soil N 2 O fluxes have been linked to litter decomposition rates [ Kiese et al , 2003], soil CN ratios [ Kiese and Butterbach ‐ Bahl , 2002], pH [ Menyailo et al , 2003], %WFPS [ Davidson et al , 2004], and texture [ Keller et al , 2005]. By selecting only clay‐rich sites, we did not address the influence of soil texture on N 2 O fluxes.…”

Section: Discussionmentioning

confidence: 99%

“…Studies in temperate ecosystems and plantations [ Butterbach ‐ Bahl et al , 2002; Binkley and Menyailo , 2005] have demonstrated that plant species can influence soil N 2 O production and that proximity to tree individuals [ Butterbach ‐ Bahl et al , 2002] and community assembly can be critically important [ Niklaus et al , 2006]. The only species‐level study on samples collected in tropical regions [ Menyailo et al , 2003] linked CO 2 and N 2 O production from soil cores to tree species located in low‐diversity plantations. We set out to test whether tree species influence soil CO 2 and N 2 O fluxes in high‐diversity primary tropical forest.…”

Section: Introductionmentioning

confidence: 99%

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Do plant species influence soil CO₂ and N₂O fluxes in a diverse tropical forest?

et al. 2010

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[1] To test whether plant species influence greenhouse gas production in diverse ecosystems, we measured wet season soil CO 2 and N 2 O fluxes close to ∼300 large (>35 cm in diameter at breast height (DBH)) trees of 15 species at three clay-rich forest sites in central Amazonia. We found that soil CO 2 fluxes were 38% higher near large trees than at control sites >10 m away from any tree (P < 0.0001). After adjusting for large tree presence, a multiple linear regression of soil temperature, bulk density, and liana DBH explained 19% of remaining CO 2 flux variability. Soil N 2 O fluxes adjacent to Caryocar villosum, Lecythis lurida, Schefflera morototoni, and Manilkara huberi were 84%−196% greater than Erisma uncinatum and Vochysia maxima, both Vochysiaceae. Tree species identity was the most important explanatory factor for N 2 O fluxes, accounting for more than twice the N 2 O flux variability as all other factors combined. Two observations suggest a mechanism for this finding: (1) sugar addition increased N 2 O fluxes near C. villosum twice as much (P < 0.05) as near Vochysiaceae and (2) species mean N 2 O fluxes were strongly negatively correlated with tree growth rate (P = 0.002). These observations imply that through enhanced belowground carbon allocation liana and tree species can stimulate soil CO 2 and N 2 O fluxes (by enhancing denitrification when carbon limits microbial metabolism). Alternatively, low N 2 O fluxes potentially result from strong competition of tree species with microbes for nutrients. Species-specific patterns in CO 2 and N 2 O fluxes demonstrate that plant species can influence soil biogeochemical processes in a diverse tropical forest.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Do plant species influence soil CO₂ and N₂O fluxes in a diverse tropical forest?

et al. 2010

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“…Soil basal respiration represents soil microbial activity and the intensity of substance metabolism (Menyailo et al 2003). The moisture content of soil samples was adjusted to 40% water-holding capacity (WHC), and the samples were conditioned at 25°C in a thermostated container for 4 days, which contained deionized water to maintain high humidity and a beaker of 1 M NaOH to trap released CO 2 .…”

Section: Soil Basal Respirationmentioning

confidence: 99%

Soil organic carbon stock and carbon efflux in deep soils of desert and oasis

Tang

2009

Environ Earth Sci

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An experiment was carried out in two soils of oasis farmland and the surrounding desert at the southern periphery of the Gurbantonggut Desert, in central Asia, to test the effects of land use on soil organic carbon (SOC) stock and carbon efflux in deep soil. The result showed that although SOC content in the topsoil (0-0.2 m) decreased by 27% after desert soil was cultivated, total carbon stock within the soil profile (0-2.5 m) increased by 57% due to the significant increase in carbon stock at 0.2-to 2.5-m depth, and carbon efflux also markedly increased at 0-to 0.6-m depth. In the topsoil, the carbon process of the oasis was mainly dominated by consumption; in the subsoil (0.2-0.6 m) it was likely to be co-dominated by storage and consumption, and the greatest difference in SOC stock between the two soils also lay in this layer; while in the deep layer (0.6-2.5 m) of the oasis, with a more stable carbon stock, there was carbon storage dominated. Moreover, carbon stocks in the deep layer of the two soils contributed about 65% of the total carbon stocks, and correspondingly, microbial activities contributed 71% to the total microbial activity in the entire soil profile, confirming the importance of carbon cycling in the deep layer. Desert cultivation in this area may produce unexpectedly high carbon stocks from the whole profile despite carbon loss in the topsoil.

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“…Soil basal respiration, as an indicator of microbial activity (Menyailo et al 2003), was measured using a static alkali absorption method (Yim, Joo, and Nakane 2002). The antibiotic treatment is used to partition fungal and bacterial respiration in soil basal respiration (selective inhibition method).…”

Section: Aw Treatments Antibiotic Treatments and Soil Basal Respiramentioning

confidence: 99%

Comparison of Soil Properties and Microbial Activities between Air-Dried and Rewetted Desert and Oasis Soils in Northwest China

Tang

2011

Communications in Soil Science and Plant Analysis

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An air-drying and rewetting (AW) experiment was used to examine the responses of soil properties and microbial activities to abrupt alteration of water availability between desert and oasis soils in northwest China. The results revealed that AW increased soil pH and available nitrogen and phosphorus but decreased soil organic matter in the desert, while available phosphorus increased and available nitrogen decreased in the oasis. This AW also caused a burst of microbial activity in both desert and oasis soils, and the magnitude of the AW effect was correlated with the extent of soil rewetting, incubation temperature, land use, and the interaction between rewetting moisture and incubation temperature. The responses of soil properties and microbial activity to AW were greater in the desert than in the oasis. Different soil properties and microorganism composition resulted from land-use change and were likely to be the causes of the different responses to AW in the desert and oasis soils.

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Soil microbial activities in tree-based cropping systems and natural forests of the Central Amazon, Brazil

Cited by 37 publications

References 20 publications

Do plant species influence soil CO₂ and N₂O fluxes in a diverse tropical forest?

Do plant species influence soil CO₂ and N₂O fluxes in a diverse tropical forest?

Soil organic carbon stock and carbon efflux in deep soils of desert and oasis

Comparison of Soil Properties and Microbial Activities between Air-Dried and Rewetted Desert and Oasis Soils in Northwest China

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Soil microbial activities in tree-based cropping systems and natural forests of the Central Amazon, Brazil

Cited by 37 publications

References 20 publications

Do plant species influence soil CO2 and N2O fluxes in a diverse tropical forest?

Do plant species influence soil CO2 and N2O fluxes in a diverse tropical forest?

Soil organic carbon stock and carbon efflux in deep soils of desert and oasis

Comparison of Soil Properties and Microbial Activities between Air-Dried and Rewetted Desert and Oasis Soils in Northwest China

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Product

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Do plant species influence soil CO₂ and N₂O fluxes in a diverse tropical forest?

Do plant species influence soil CO₂ and N₂O fluxes in a diverse tropical forest?