Influence of soil properties on the turnover of nitric oxide and nitrous oxide by nitrification and denitrification at constant temperature and moisture

Effects of land-use type and nitrogen addition on nitrous oxide and carbon dioxide production potentials in Japanese Andosols

“…These are considered to be effective in reducing the masking effects of soil temperature and water conditions on N 2 O and CO 2 production, enabling the effects of other soil factors to be determined (Gödde and Conrad 2000). The reason for the largest N 2 O production in orchard soils might be the high initial mineral N levels according to chronic fertilizer application in the fields, which is considered a key factor influencing N 2 O emissions (Robertson et al 2000;Mathieu et al 2006).…”

NO and N2O emissions from agricultural fields in the North China Plain: Origination and mitigation

“…Both NO and N 2 O can be produced as by-products in nitrification process (Remde and Conrad, 1990). Many lab and field experiments suggest that NO released from soils is mainly produced through the nitrification of NH 4 + while denitrification is the major source of N 2 O under most situations (Davidson et al, 1993;Hutchinson et al, 1993;Parsons and Keller, 1995;Skiba et al, 1997;Gödde and Conrad, 2000;Dobbie and Smith, 2001;Azam et al, 2002;Russow et al, 2008;Vilain et al, 2014). Nevertheless, few studies also reported that N 2 O emission was mainly ascribed to nitrification process from the agricultural soil in the North China Plain (NCP) (Ju et al, 2011;Cui et al, 2012).…”

Emissions of Nitrous Oxide (N2O) and Di-Nitrogen (N2) from the Agricultural Landscapes, Sources, Sinks, and Factors Affecting N2O and N2 Ratios

“…These areas include; urine patches in grazed pastures, where up to 1,000 kg N ha -1 can be found Zaman & Blennerhassett., 2010), riparian wetlands (Nguyen et al, 1999;Matheson et al, 2003), drains and ditches, and stream or river channels (Garcia-Ruiz et al, 1998;Bronson & Fillery, 1998;Mcmahon & Dennehy, 1999;Walker et al, 2002;Zaman et al, 2008b&c, Zaman & Nguyen, 2010. However denitrification can also occur in less obviously waterlogged areas within the agricultural landscape due to the existence of anaerobic microsites such as in the center of soil aggregates (Parkin, 1987) or in areas of localized high O 2 consumption (hot spots), which are created by decaying organic C (Burton et al, 1999;Godde & Conrad, 2000;Khalil et al, 2002;Mosier et al, 2002). Depending on soil physical and chemical conditions, other processes like chemo-denitrification can result in substantial production of N 2 O.…”