Filters: Tags: denitrification (X)
245 results (89ms)
Filters
Date Range
Extensions Types
Contacts
Categories Tag Types
|
To determine the dominant processes controlling nitrogen (N) dynamics in soils and increase insights into soil N cycling from nitrogen isotope (?15N) data, patterns of 15N enrichment in soil profiles were compiled from studies on tropical, temperate, and boreal systems. The maximum 15N enrichment between litter and deeper soil layers varied strongly with mycorrhizal fungal association, averaging 9.6 � 0.4? in ectomycorrhizal systems and 4.6 � 0.5? in arbuscular mycorrhizal systems. The 15N enrichment varied little with mean annual temperature, precipitation, or nitrification rates. One main factor controlling 15N in soil profiles, fractionation against 15N during N transfer by mycorrhizal fungi to host plants, leads...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Biogeochemistry,
Denitrification,
Isotopic fractionation,
Modeling,
Mycorrhizal fungi,
Categories: Publication;
Types: Citation;
Tags: Agriculture,
Aquifers,
Computational methods,
Contamination,
Denitrification,
Categories: Publication;
Types: Citation;
Tags: Acidification,
Anaerobic fermentation,
Bioengineering Abstracts; Environmental Engineering Abstract,
Biogasification,
Denitrification,
Categories: Publication;
Types: Citation;
Tags: Biochemical oxygen demand,
Bioengineering Abstracts,
Biofilm composition,
Circulating bed reactor,
DNA,
Categories: Publication;
Types: Citation;
Tags: P 0000 AIR POLLUTION,
Pollution Abstracts,
bioaccumulation,
denitrification,
greenhouse effect,
Denitrification is a critical process regulating the removal of bioavailable nitrogen (N) from natural and human-altered systems. While it has been extensively studied in terrestrial, freshwater, and marine systems, there has been limited communication among denitrification scientists working in these individual systems. Here, we compare rates of denitrification and controlling factors across a range of ecosystem types. We suggest that terrestrial, freshwater, and marine systems in which denitrification occurs can be organized along a continuum ranging from (1) those in which nitrification and denitrification are tightly coupled in space and time to (2) those in which nitrate production and denitrification are relatively...
Categories: Publication;
Types: Citation;
Tags: Lakes,
continental shelf,
denitrification,
estuaries
Categories: Publication;
Types: Citation;
Tags: SAT,
SW 3040 Wastewater treatment processes,
USA, Arizona, Phoenix,
Water Resources Abstracts,
ammonia,
Categories: Publication;
Types: Citation;
Tags: Anaerobic Digestion,
Biological Wastewater Treatment,
Bioreactors,
Denitrification,
Nitrification,
Categories: Publication;
Types: Citation;
Tags: ASFA 1: Biological Sciences & Living Resources; ASFA 3: Aqua,
Brazil, Amazon R.,
Brazil, Trombetas R.,
Denitrification,
Ecosystem management,
Categories: Publication;
Types: Citation;
Tags: Algal blooms,
Ammonium,
Denitrification,
Eutrophic Lakes,
Geochemical cycle,
Categories: Publication;
Types: Citation;
Tags: Agricultural runoff,
Basins,
D 04315 Riverbasins; Q1 01481 Productivity; Q5 01521 Mechani,
Denitrification,
Denmark,
Categories: Publication;
Types: Citation;
Tags: Biological diversity,
Canada, Ontario,
Community structure,
D 04600 Soil,
Denitrification,
Categories: Publication;
Types: Citation;
Tags: D 04130 Arid zones,
Denitrification,
Ecology Abstracts,
Grazing,
National parks,
|