N-fertilization and soil acidification effects on N2O and CO2 emission from temperate pine forest soil

Sitaula, Bishal K.; Bakken, Lars R.; Abrahamsen, Gunnar

doi:10.1016/0038-0717(95)00078-s

Cited by 97 publications

(50 citation statements)

References 20 publications

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“…Our result was consistent with Hall and Matson (1999), who suggested that N 2 O emissions from Plimited tropical forests (N-saturation) might be especially sensitive to N inputs, in that they might respond to even small initial N additions with larger losses than predicted by models developed for N-limited temperate forests. Secondly, the contents of NH þ 4 and NO À 3 , demonstrating substantial nitrification and denitrification in the soil (Sitaula et al 1995), were significantly increased with increasing N additions in the mature forest and MN plots in the disturbed forest. Regression analysis revealed that soil N 2 O emissions were positively correlated to soil NH (Ambus et al 2001;Venterea et al 2003;Wallenstein et al 2006), Other studies indicating soil inorganic N availability as a key factor controlling N 2 O emissions from forest soils have been reported in temperate (Bowden et al 1991;Sitaula et al 1995), and tropical (Hall and Matson 1999) Zones.…”

Section: Effects Of N Addition On Soil N 2 O Emission Fluxesmentioning

confidence: 95%

“…Secondly, the contents of NH þ 4 and NO À 3 , demonstrating substantial nitrification and denitrification in the soil (Sitaula et al 1995), were significantly increased with increasing N additions in the mature forest and MN plots in the disturbed forest. Regression analysis revealed that soil N 2 O emissions were positively correlated to soil NH (Ambus et al 2001;Venterea et al 2003;Wallenstein et al 2006), Other studies indicating soil inorganic N availability as a key factor controlling N 2 O emissions from forest soils have been reported in temperate (Bowden et al 1991;Sitaula et al 1995), and tropical (Hall and Matson 1999) Zones. These relationships were consistent with the "hole-inthe-pipe (HIP)" model which describes N 2 O emission primarily as a function of N cycling rates and other indices of N availability (Firestone and Davidson 1989).…”

Section: Effects Of N Addition On Soil N 2 O Emission Fluxesmentioning

confidence: 95%

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Emissions of nitrous oxide from three tropical forests in Southern China in response to simulated nitrogen deposition

Zhang

et al. 2008

Plant Soil

108

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Section: Effects Of N Addition On Soil N 2 O Emission Fluxesmentioning

confidence: 95%

Section: Effects Of N Addition On Soil N 2 O Emission Fluxesmentioning

confidence: 95%

Emissions of nitrous oxide from three tropical forests in Southern China in response to simulated nitrogen deposition

Zhang

et al. 2008

Plant Soil

108

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“…Nitrogen availability influences fluxes of nitric oxide (NO), nitrous oxide (N 2 O) and methane (CH 4 ) (Castro et al 1994, Nilsson 1995, Sitaula et al 1995b. Higher N levels in soil generally result in higher emissions of N trace gases (Matson and Vitousek 1990, Bronson and Mosier 1993, Castro et al 1994, Sitaula et al 1995a.…”

Section: Greenhouse Gas Fluxesmentioning

confidence: 99%

Nitrogen Excess in North American Ecosystems: Predisposing Factors, Ecosystem Responses, and Management Strategies

Fenn¹,

Poth²,

Aber³

et al. 1998

Ecological Applications

328

492

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Abstract. Most forests in North America remain nitrogen limited, although recent studies have identified forested areas that exhibit symptoms of N excess, analogous to overfertilization of arable land. Nitrogen excess in watersheds is detrimental because of disruptions in plant/soil nutrient relations, increased soil acidification and aluminum mobility, increased emissions of nitrogenous greenhouse gases from soil, reduced methane consumption in soil, decreased water quality, toxic effects on freshwater biota, and eutrophication of coastal marine waters. Elevated nitrate ( ) loss to groundwater Ϫ

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“…In soil systems, N 2 O may be produced as a result of nitrifying and denitrifying processes in relatively close proximity due to the presence of anaerobic microsites in an otherwise aerobic soil volume . The majority of studies examining N 2 O distribution with depth have found peak concentrations at the greatest depth examined, often 50-100 cm below the soil surface, and not in what are considered the most biologically active layers associated with the root zone (Burford and Millington 1968;Dowdell and Smith 1974;Goodroad and Keeney 1985;Burton and Beauchamp 1994;Sitaula et al 1995).…”

Section: Mots Clés: Oxyde Nitreux N 2 O Flux Mesures Conduite Du Solmentioning

confidence: 99%

Three methods to estimate N₂O fluxes as impacted by agricultural management

Burton¹,

Bergstrom²,

Covert³

et al. 1997

Can. J. Soil. Sci.

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. 1997. Three methods to estimate N 2 O fluxes as impacted by agricultural management. Can. J. Soil Sci. 77: 125-134. This study examines three methods of evaluating N 2 O flux and accumulation in soil profile over a growing season under three soil management regimes (fallow, fallow with manure addition and cropped to alfalfa). Estimates of N 2 O flux were made based on measured soil atmosphere concentration gradients in the top 15 cm and compared to flux estimates based on ex situ cores and micro-meteorological measurements made in parallel studies. All methods indicated strong seasonal trends relating to precipitation events. The amounts of N 2 O accumulating the profile decreased in the order alfalfa < fallow < fallow/manure. The amounts of N 2 O accumulating in the profile ranged from ambient (0.35 µL L -1 ) to 490 µL L -1 . Diffusion of N 2 O to the lower profile was shown to provide temporary storage of N 2 O and thereby provide the opportunity for further reduction to N 2 prior to efflux from the surface. In comparing the estimates of surface flux, all three methods were of the same order of magnitude for the fallow site but profile-based estimates were much lower and much higher for fallow/manure and alfalfa sites, respectively. Differences were attributed to the location and timing of carbon addition in each system. O était estimé à partir des mesures des gradients de concentration dans l'atmosphère du sol dans les 15 premiers centimetres, puis comparé aux valeurs obtenues en laboratoire sur des carottes prélevées du même sol ainsi qu'aux valeurs basées sur des mesures microclimatiques recueillies dans des travaux parallèles. Les trois méthodes rélevait de fortes tendances saisonnières liées aux épisodes de précipitations. Les quantités de N 2 O s'accumulant dans le profil s'établissaient dans l'ordre descendant suivant : luzerne-jachère simple-jachère avec fumier, dans un écart de 0,35 µL L -1 à 490 µL L -1 . L'oxyde nitreux diffusé vers le bas du profil servait de source temporaire de stockage et était donc exposé à une réduction ultérieure en N 2 avant d'être rejeté à la surface du sol. Les valeurs obtenues pour le flux de N 2 O à partir de la surface du sol étaient du même ordre de grandeur selon les trois méthodes d'évaluation pour la jachère simple. Mais pour les deux autres systémes culturaux, les valeurs obtenues dans le sol en place étaient soit beaucoup plus basses que la jachère amendée ou lisier, soit plus hautes pour la jachère fourragére. Ces différences étaient attribuées aux variations spatio-temporelles des apports de carbone dans chaque système.

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N-fertilization and soil acidification effects on N2O and CO2 emission from temperate pine forest soil

Cited by 97 publications

References 20 publications

Emissions of nitrous oxide from three tropical forests in Southern China in response to simulated nitrogen deposition

Emissions of nitrous oxide from three tropical forests in Southern China in response to simulated nitrogen deposition

Nitrogen Excess in North American Ecosystems: Predisposing Factors, Ecosystem Responses, and Management Strategies

Three methods to estimate N₂O fluxes as impacted by agricultural management

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N-fertilization and soil acidification effects on N2O and CO2 emission from temperate pine forest soil

Cited by 97 publications

References 20 publications

Emissions of nitrous oxide from three tropical forests in Southern China in response to simulated nitrogen deposition

Emissions of nitrous oxide from three tropical forests in Southern China in response to simulated nitrogen deposition

Nitrogen Excess in North American Ecosystems: Predisposing Factors, Ecosystem Responses, and Management Strategies

Three methods to estimate N2O fluxes as impacted by agricultural management

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Product

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Three methods to estimate N₂O fluxes as impacted by agricultural management