Results 121 to 130 of about 152,103 (369)

Denitrification in Soil Aggregate Analogues-Effect of Aggregate Size and Oxygen Diffusion

open access: yesFrontiers in Environmental Science, 2018
Soil-borne nitrous oxide (N$_2$O) emissions have a high spatial and temporal variability which is commonly attributed to the occurrence of hotspots and hot moments for microbial activity in aggregated soil. Yet there is only limited information about the
S. Schlüter   +7 more
semanticscholar   +1 more source

What are the carbon services from cover‐crop adoption worth from farmers' perspective?

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract We derive shadow prices of carbon services provided by cover crops relative to non‐cover‐crop agricultural practices, accounting for carbon sequestration and greenhouse gas (GHG) emissions. We model the agricultural technology by integrating crop production, carbon sequestration, and GHG emissions.
Saurav Raj Kunwar   +3 more
wiley   +1 more source

Seasonal variation in denitrification and dissimilatory nitrate reduction to ammonia process rates and corresponding key functional genes along an estuarine nitrate gradient

open access: yesFrontiers in Microbiology, 2015
This research investigated spatial-temporal variation in benthic bacterial community structure, rates of denitrification and dissimilatory nitrate reduction to ammonium (DNRA) processes and abundances of corresponding genes and transcripts at three sites
Cindy J Smith   +8 more
doaj   +1 more source

Optimal timing and rate of nitrogen fertilizer use: An integrated network technology approach

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Both the rate and timing of crop fertilizer application play an important role in agricultural productivity. However, inefficient fertilizer use can significantly increase production costs, water pollution, and greenhouse gas emissions. To capture both the spatial heterogeneity and dynamic nature of this problem, we develop a multi‐stage ...
Tihomir Ancev, Moriah Bostian
wiley   +1 more source

Denitrification potential of the eastern oyster microbiome using a 16S rRNA gene based metabolic inference approach

open access: yesPLoS ONE, 2017
The eastern oyster (Crassostrea virginica) is a foundation species providing significant ecosystem services. However, the roles of oyster microbiomes have not been integrated into any of the services, particularly nitrogen removal through denitrification.
A. Arfken   +3 more
semanticscholar   +1 more source

Wet Season Carbon (δ13C) and Nitrogen (δ15N) Composition of Modern Plants as Isotopic Framework for Agropastoral and Palaeoecological Studies in Northern Greece

open access: yesArchaeometry, EarlyView.
ABSTRACT Mediterranean wetlands are one of Europe's most vital and endangered biodiversity hotspots. This study determined the carbon (δ13C) and nitrogen (δ15N) isotope values of modern plants to construct an isotopic framework by which to contextualize agropastoral management in and around past wetland ecosystems.
Doris Vidas‐Cardador   +5 more
wiley   +1 more source

From rhetoric to measurement: The economics of wetland conservation

open access: yesCanadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, EarlyView.
Abstract Wetland conservation continues to be a pressing issue as wetlands continue to be lost due to urban, industrial, and agricultural expansion. This paper synthesizes the current knowledge about wetland conservation economics in Canada, with a focus on prairie landscapes. We review the methods economists use to empirically measure the costs (i.e.,
Patrick Lloyd‐Smith   +2 more
wiley   +1 more source

Factors Controlling Sediment Denitrification Rates in Grassland and Forest Streams

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2014
Sediment denitrification is an important nitrate (NO3-) removal process from agricultural streams. The direct and indirect factors that control denitrification rates in tributary sediments can vary depending on the types of agricultural activities and ...
Haryun Kim
doaj   +1 more source

Denitrification in San Francisco Bay Intertidal Sediments [PDF]

open access: bronze, 1984
Ronald S. Oremland   +3 more
openalex   +1 more source

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