Salinity, soil microbial activity and denitrification
The impact of DO and salinity on microbial community in poly(butylene succinate) denitrification reactors for recirculating aquaculture system wastewater treatment
... solid-phase denitrification, the microbial community of biofilm attached on various kinds of bio- degradable media were studied, and Diaphorobacter, Aci- dovorax, Simplicispira and Comamonas were found as ...
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The Kinetics of Biodeconcentration for Nitrate: Case Study on Microbial Denitrification and Plant Absorption
... The increase in total nitrogen during composting was caused by the de- crease in substrate carbon resulting from the loss of CO 2 (Soumare et al. 2002; Zorpas et al. 2003). Inorganic nitrogen, N–NH 4 and N–NO 3 are ...
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Plant hosts control microbial denitrification activity
... and root tissues of all the plants (Fig. S1). The richness and diversity of species (Inverted Simpson) were 282 significantly increased in the RAS compared to the bulk soil for each plant, except for M. ...
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Physical constraints for respiration in microbial hotspots in soil and their importance for denitrification
... the denitrification in heterogeneous media like soil critically depends on water saturation as well as on the spatial distribu- tion of microbial ...to denitrification stoi- chiometry, ...
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Effects of pesticides on the soil microbial biomass and microbial activity
... The pesticides epoxiconazole and quimnerac were shown to have no detectable side-effects on total soil microbial biomass in several different soils, nor on microbial activity as[r] ...
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Salinity Is a Key Determinant for Soil Microbial Communities in a Desert Ecosystem
... low microbial diversity in high-salinity sites in the present study indicates habitat filtering, which was supported by all positive NTI values ...the microbial community to form a nonrandom community ...
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Effect of soil saturation on denitrification in a grassland soil
... dry soil T otal emittedN,kgN ha − 1 CO 2 ,kg C ha − 1 SA T/sat ...of soil compaction and satura- tion on the emission of N 2 ...whether soil structure, or simply saturation, is the determining factor ...
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The effect of microbial activity on soil water diffusivity
... of microbial activity on the evaporation of water from cores of a sandy soil under laboratory ...stimulate microbial activity by adding different amounts of synthetic analogue root ...
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Microbial Processes and Nitrate removal in Denitrification Beds
... operational denitrification beds Finally, this thesis compared four different methods to determine denitrification rates in denitrification ...the denitrification bed allowed calculation of a ...
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Performance, denitrification activity, and microbial community dynamics of denitrifying biofilters under fluctuating water level
... 59 One potential explanation is that more carbon could be released when the water level is low. A greater portion of the reactor is aerobic, which could result in a faster carbon mineralization rate of the woodchips ...
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Soil microbial activity as influenced by compaction and straw mulching
... DISCUSSION Soil compaction may cause problems by changing poro- sity in the ...biological activity, espe- cially on enzymatic activity of the soil and may have negati- vely influenced on the ...
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Microbial activity in a semiarid soil cultivated with Atriplex nummularia
... alcalina. Microbial activity in a semiarid soil cultivated with Atriplex nummularia Abstract – Methods used to estimate the soil microbial activity are important to environmental ...
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Effect of long storage and soil type on the actual denitrification and denitrification capacity to N2O formation
... higher activity of microorganisms, which led to more rapid oxygen consumption and provided better condi- tions for ...of microbial communi- ties to fluctuating environmental ...
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Microbial populations and enzymatic activity in soil under winter wheat
... respiratory activity of soil was conducted on the basis of a field ...podzolic soil developed from loess formations with the method of rando- mized blocks and comprised five ...treatments. ...
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Antibiotics in the Soil Environment - Degradation and Their Impact on Microbial Activity and Diversity
... the soil, the main processes determining their persistence are sorption to organic particles and ...the soil, and climatic factors (temperature, rainfall, and ...affect soil microorganisms by ...
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Soil microbial communities and dehydrogenase activity depending on farming systems
... The toxic effect of pesticides on the cellulose decomposing bacteria probably appeared also in 2008 when their number in the soil of the CONFYM treatment was more than 2 times lower than that of the ORGFYM ...
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Impact of microbial activity on the leaching of soluble N forms in soil
... In contrast, mean 13 C recovery was 69 ± 5%, with 13 C recov- ery in the non-sterile soils much reduced at 62 and 48% for 15 N 13 C-AA, and 6.2 and 5.9% for 15 N 13 C-urea under LS1 and LS2, respectively. The lower ...
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Preliminary study of sludge effect on soil microbial activity of a podzolic soil under willow culture
... podzolic soil was fertilized with various doses of municipal-industrial sewage sludge (1, ...the soil was planted with willow ( Salix viminalis ...respiratory activity, cellulose mineralization rate, ...
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Soil properties explain changes in soil microbial enzyme activity with depth in a piñon-juniper woodland
... enzyme activity and nutrient concentrations throughout the soil profile, roots were found at ...the soil profile, so although percent soil organic carbon and total nitrogen decreased with ...
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Depth dependence of climatic controls on soil microbial community activity and composition
... surface soil, particularly within the phyla Actinobacteria and Chloro exi, have been shown to respond positively to increased temperatures 13 ...affect microbial communities indirectly through its in uence ...
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