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• W2823317920 endingPage "408" @default.
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• W2823317920 abstract "Abstract. Soil moisture strongly affects the balance between nitrification, denitrification and N2O reduction and therefore the nitrogen (N) efficiency and N losses in agricultural systems. In rice systems, there is a need to improve alternative water management practices, which are designed to save water and reduce methane emissions but may increase N2O and decrease nitrogen use efficiency. In a field experiment with three water management treatments, we measured N2O isotope ratios of emitted and pore air N2O (δ15N, δ18O and site preference, SP) over the course of 6 weeks in the early rice growing season. Isotope ratio measurements were coupled with simultaneous measurements of pore water NO3-, NH4+, dissolved organic carbon (DOC), water-filled pore space (WFPS) and soil redox potential (Eh) at three soil depths. We then used the relationship between SP × δ18O-N2O and SP × δ15N-N2O in simple two end-member mixing models to evaluate the contribution of nitrification, denitrification and fungal denitrification to total N2O emissions and to estimate N2O reduction rates. N2O emissions were higher in a dry-seeded + alternate wetting and drying (DS-AWD) treatment relative to water-seeded + alternate wetting and drying (WS-AWD) and water-seeded + conventional flooding (WS-FLD) treatments. In the DS-AWD treatment the highest emissions were associated with a high contribution from denitrification and a decrease in N2O reduction, while in the WS treatments, the highest emissions occurred when contributions from denitrification/nitrifier denitrification and nitrification/fungal denitrification were more equal. Modeled denitrification rates appeared to be tightly linked to nitrification and NO3- availability in all treatments; thus, water management affected the rate of denitrification and N2O reduction by controlling the substrate availability for each process (NO3- and N2O), likely through changes in mineralization and nitrification rates. Our model estimates of mean N2O reduction rates match well those observed in 15N fertilizer labeling studies in rice systems and show promise for the use of dual isotope ratio mixing models to estimate N2 losses." @default.
• W2823317920 created "2018-07-19" @default.
• W2823317920 creator A5006724827 @default.
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• W2823317920 date "2019-01-24" @default.
• W2823317920 modified "2023-10-01" @default.
• W2823317920 title "Early season N&lt;sub&gt;2&lt;/sub&gt;O emissions under variable water management in rice systems: source-partitioning emissions using isotope ratios along a depth profile" @default.
• W2823317920 cites W1549153473 @default.
• W2823317920 cites W1562258491 @default.
• W2823317920 cites W1636851308 @default.
• W2823317920 cites W1643498716 @default.
• W2823317920 cites W1660590943 @default.
• W2823317920 cites W176811721 @default.
• W2823317920 cites W1920639484 @default.
• W2823317920 cites W1968976589 @default.
• W2823317920 cites W1972228880 @default.
• W2823317920 cites W1979196486 @default.
• W2823317920 cites W1983689941 @default.
• W2823317920 cites W1985032836 @default.
• W2823317920 cites W1986509577 @default.
• W2823317920 cites W1986987016 @default.
• W2823317920 cites W1989696744 @default.
• W2823317920 cites W1989918809 @default.
• W2823317920 cites W1990328233 @default.
• W2823317920 cites W1996439916 @default.
• W2823317920 cites W1996534936 @default.
• W2823317920 cites W1996798118 @default.
• W2823317920 cites W1996848042 @default.
• W2823317920 cites W2004002340 @default.
• W2823317920 cites W2014138290 @default.
• W2823317920 cites W2023202902 @default.
• W2823317920 cites W2024433743 @default.
• W2823317920 cites W2025254507 @default.
• W2823317920 cites W2026606928 @default.
• W2823317920 cites W2027885045 @default.
• W2823317920 cites W2031775871 @default.
• W2823317920 cites W2032292978 @default.
• W2823317920 cites W2037605269 @default.
• W2823317920 cites W2037791644 @default.
• W2823317920 cites W2053606208 @default.
• W2823317920 cites W2054654287 @default.
• W2823317920 cites W2057588297 @default.
• W2823317920 cites W2057984641 @default.
• W2823317920 cites W2064737283 @default.
• W2823317920 cites W2066551753 @default.
• W2823317920 cites W2067841165 @default.
• W2823317920 cites W2068312108 @default.
• W2823317920 cites W2070720864 @default.
• W2823317920 cites W2071268464 @default.
• W2823317920 cites W2080843162 @default.
• W2823317920 cites W2081640203 @default.
• W2823317920 cites W2083165797 @default.
• W2823317920 cites W2084349648 @default.
• W2823317920 cites W2086419211 @default.
• W2823317920 cites W2086868881 @default.
• W2823317920 cites W2086926454 @default.
• W2823317920 cites W2088090850 @default.
• W2823317920 cites W2090884527 @default.
• W2823317920 cites W2094455207 @default.
• W2823317920 cites W2094684223 @default.
• W2823317920 cites W2098577335 @default.
• W2823317920 cites W2100437772 @default.
• W2823317920 cites W2112890395 @default.
• W2823317920 cites W2113177832 @default.
• W2823317920 cites W2122003193 @default.
• W2823317920 cites W2127658270 @default.
• W2823317920 cites W2133813560 @default.
• W2823317920 cites W213596546 @default.
• W2823317920 cites W2136596893 @default.
• W2823317920 cites W2141734152 @default.
• W2823317920 cites W2142891106 @default.
• W2823317920 cites W2154610441 @default.
• W2823317920 cites W2158765373 @default.
• W2823317920 cites W21588666 @default.
• W2823317920 cites W2162029471 @default.
• W2823317920 cites W2163591521 @default.
• W2823317920 cites W2164024489 @default.
• W2823317920 cites W2174626183 @default.
• W2823317920 cites W2179720711 @default.
• W2823317920 cites W221698503 @default.
• W2823317920 cites W2273750159 @default.
• W2823317920 cites W2276226437 @default.
• W2823317920 cites W2278353856 @default.
• W2823317920 cites W2319741953 @default.
• W2823317920 cites W2398634248 @default.
• W2823317920 cites W2488698330 @default.
• W2823317920 cites W2541506680 @default.
• W2823317920 cites W2558333456 @default.
• W2823317920 cites W2588110914 @default.
• W2823317920 cites W2754210162 @default.
• W2823317920 cites W2794323847 @default.

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