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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F14%3A00429065%21RIV15-GA0-60077344
rdf:type
n11:Vysledek skos:Concept
dcterms:description
Relationships between CH4, CO2, and N2O emissions were studied in soil that had been freshly amended with large deposits of cattle wastes. Dynamics of CH4, CO2, and N2O emissions were investigated with flux chambers from early April to late June 2011, during the 3 months following cattle overwintering at the site. This 81-day field study was supplemented with soil analyses of available C and N content and measurement of denitrification activity. In a more detailed field investigation, the daily time course of emissions was determined. The field research was complemented with a laboratory experiment that focused on the short-term time course of N2O and CH4 production in artificially created anoxic soil microsites. The following hypotheses were tested: (i) a large input of C (and N and other nutrients) in cattle manure creates conditions suitable for methanogenesis, and therefore overwintering areas can produce large amounts of CH4; (ii) N2O is produced and emitted until the level of mineral N decreases, while the level of CH4 production is low; and (iii) production of CH4 is greater when N immobilization decreases the level of NO3- in soil. N2O emissions were relatively large during the first 3 weeks, then peaked (at ca. 4000 µg N2O-N m-2 h-1) and soon decreased to almost zero; the changes were related to the mineral and soluble organic N content in soil. CH4 fluxes were large, though variable, in the first 2 months (600-3000 µg CH4-C m-2 h-1) and were independent of C and N availability. Although time courses differed for CH4 and N2O, a negative relationship between N2O and CH4 emissions was not detected. Relationships between CH4, CO2, and N2O emissions were studied in soil that had been freshly amended with large deposits of cattle wastes. Dynamics of CH4, CO2, and N2O emissions were investigated with flux chambers from early April to late June 2011, during the 3 months following cattle overwintering at the site. This 81-day field study was supplemented with soil analyses of available C and N content and measurement of denitrification activity. In a more detailed field investigation, the daily time course of emissions was determined. The field research was complemented with a laboratory experiment that focused on the short-term time course of N2O and CH4 production in artificially created anoxic soil microsites. The following hypotheses were tested: (i) a large input of C (and N and other nutrients) in cattle manure creates conditions suitable for methanogenesis, and therefore overwintering areas can produce large amounts of CH4; (ii) N2O is produced and emitted until the level of mineral N decreases, while the level of CH4 production is low; and (iii) production of CH4 is greater when N immobilization decreases the level of NO3- in soil. N2O emissions were relatively large during the first 3 weeks, then peaked (at ca. 4000 µg N2O-N m-2 h-1) and soon decreased to almost zero; the changes were related to the mineral and soluble organic N content in soil. CH4 fluxes were large, though variable, in the first 2 months (600-3000 µg CH4-C m-2 h-1) and were independent of C and N availability. Although time courses differed for CH4 and N2O, a negative relationship between N2O and CH4 emissions was not detected.
dcterms:title
Emissions of CH4, CO2, and N2O from soil at a cattle overwintering area as affected by available C and N Emissions of CH4, CO2, and N2O from soil at a cattle overwintering area as affected by available C and N
skos:prefLabel
Emissions of CH4, CO2, and N2O from soil at a cattle overwintering area as affected by available C and N Emissions of CH4, CO2, and N2O from soil at a cattle overwintering area as affected by available C and N
skos:notation
RIV/60077344:_____/14:00429065!RIV15-GA0-60077344
n3:aktivita
n15:Z n15:I n15:S n15:P
n3:aktivity
I, P(GA526/09/1570), P(LC06066), S, Z(AV0Z60660521), Z(MSM6007665801)
n3:cisloPeriodika
March
n3:dodaniDat
n10:2015
n3:domaciTvurceVysledku
n5:4548957 n5:9314113
n3:druhVysledku
n19:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
14421
n3:idVysledku
RIV/60077344:_____/14:00429065
n3:jazykVysledku
n8:eng
n3:klicovaSlova
methane; nitrous oxide; carbon dioxide; gas; emissions; cattle
n3:klicoveSlovo
n4:emissions n4:methane n4:cattle n4:carbon%20dioxide n4:gas n4:nitrous%20oxide
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[C67481671BB6]
n3:nazevZdroje
Applied Soil Ecology
n3:obor
n7:EE
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n12:GA526%2F09%2F1570 n12:LC06066
n3:rokUplatneniVysledku
n10:2014
n3:svazekPeriodika
75
n3:tvurceVysledku
Šimek, Miloslav Hynšt, Jaroslav Šimek, P.
n3:wos
000331855900006
n3:zamer
n13:AV0Z60660521 n13:MSM6007665801
s:issn
0929-1393
s:numberOfPages
11
n18:doi
10.1016/j.apsoil.2013.10.010