Matches in SemOpenAlex for { <https://semopenalex.org/work/W2034785948> ?p ?o ?g. }
- W2034785948 endingPage "309" @default.
- W2034785948 startingPage "273" @default.
- W2034785948 abstract "This paper presents a critical review on nitrogen (N) transformations functioning in flooded soils and sediments, and their role in N loss from the system. Nitrogen transformations reviewed include (1) ammonification (organic ? ammonium N) (2) nitrification (ammonium ? nitrate), (3) ammonia volatilization (ammonium N ? NH3), (4) denitrification (nitrate ? gaseous products N2O and N2). Transport processes reviewed were ammonium and nitrate diffusion. Inorganic N in flooded soils and sediments and waters is converted to gaseous forms by two processes, i.e., (1) nitrification‐denitrification; and (2) NH3 volatilization. The former process seems to be more predominantly involved in the ammonium N loss from the sediments, whereas the latter process occurs under specialized conditions, mainly in the overlying waters. The processes involved in converting organic N to gaseous end products include ammonification of organic N to ammonium N, upward diffusion of ammonium N into the aerobic soil layer, oxidation of ammonium N in the aerobic soil layer, downward diffusion of nitrate N into the anaerobic soil layer, and reduction of NO3‐N to the gaseous end products such as N2 and N2O. Under certain conditions where nitrification rate is slower than the flux of ammonium N from the .anaerobic soil layer, ammonium N may diffuse into the overlying waters. If the optimum conditions such as high pH and high temperature exist in the water column, ammonium N can be lost through volatilization. Based on the literature data, it can be concluded that ammonium N diffusion and nitrification functioning at slower rates was found to be limiting in controlling N loss from flooded soils and sediments, while nitrate diffusion and denitrification functioning at a rapid rate were found to be nonlimiting in controlling N loss during the nitrification‐denitrification sequence. Ammonium diffusion was dependent on the ammonium N removal mechanisms (nitrification, and NH3 volatilization) in the aerobic soil layer and floodwater to establish a concentration gradient. If ammonium N removal mechanisms do not occur in the aerobic soil layer or floodwater, there will be very little or no ammonium N loss from the flooded soils or sediments." @default.
- W2034785948 created "2016-06-24" @default.
- W2034785948 creator A5055811193 @default.
- W2034785948 creator A5066621899 @default.
- W2034785948 creator A5083022286 @default.
- W2034785948 date "1984-01-01" @default.
- W2034785948 modified "2023-10-16" @default.
- W2034785948 title "Nitrogen transformations and loss in flooded soils and sediments" @default.
- W2034785948 cites W125575733 @default.
- W2034785948 cites W125938592 @default.
- W2034785948 cites W136913192 @default.
- W2034785948 cites W1533727549 @default.
- W2034785948 cites W1545969335 @default.
- W2034785948 cites W1557690446 @default.
- W2034785948 cites W1584685099 @default.
- W2034785948 cites W1590321296 @default.
- W2034785948 cites W170024126 @default.
- W2034785948 cites W17540732 @default.
- W2034785948 cites W1779796077 @default.
- W2034785948 cites W1798996875 @default.
- W2034785948 cites W1963656354 @default.
- W2034785948 cites W1964930252 @default.
- W2034785948 cites W1965695943 @default.
- W2034785948 cites W1966664958 @default.
- W2034785948 cites W1967185949 @default.
- W2034785948 cites W1967677158 @default.
- W2034785948 cites W1968455434 @default.
- W2034785948 cites W1969058923 @default.
- W2034785948 cites W1972121662 @default.
- W2034785948 cites W1973428438 @default.
- W2034785948 cites W1974930996 @default.
- W2034785948 cites W1975549777 @default.
- W2034785948 cites W1977732605 @default.
- W2034785948 cites W1980980829 @default.
- W2034785948 cites W1982629253 @default.
- W2034785948 cites W1984942399 @default.
- W2034785948 cites W1985467307 @default.
- W2034785948 cites W1985877823 @default.
- W2034785948 cites W1987098074 @default.
- W2034785948 cites W1988450664 @default.
- W2034785948 cites W1991184080 @default.
- W2034785948 cites W1992218751 @default.
- W2034785948 cites W1993711074 @default.
- W2034785948 cites W1993747858 @default.
- W2034785948 cites W1995284783 @default.
- W2034785948 cites W1995440051 @default.
- W2034785948 cites W1997084258 @default.
- W2034785948 cites W1997254717 @default.
- W2034785948 cites W1997363528 @default.
- W2034785948 cites W1997761373 @default.
- W2034785948 cites W1998711017 @default.
- W2034785948 cites W1998815127 @default.
- W2034785948 cites W1999935615 @default.
- W2034785948 cites W2002927436 @default.
- W2034785948 cites W2003129433 @default.
- W2034785948 cites W2004417800 @default.
- W2034785948 cites W2005145601 @default.
- W2034785948 cites W2005657664 @default.
- W2034785948 cites W2006298098 @default.
- W2034785948 cites W2007953650 @default.
- W2034785948 cites W2008439049 @default.
- W2034785948 cites W2008817894 @default.
- W2034785948 cites W2009433255 @default.
- W2034785948 cites W2011849355 @default.
- W2034785948 cites W2012921774 @default.
- W2034785948 cites W2013463312 @default.
- W2034785948 cites W2015177986 @default.
- W2034785948 cites W2019007114 @default.
- W2034785948 cites W2020777991 @default.
- W2034785948 cites W2021498097 @default.
- W2034785948 cites W2022538793 @default.
- W2034785948 cites W2022563938 @default.
- W2034785948 cites W2022716335 @default.
- W2034785948 cites W2023858213 @default.
- W2034785948 cites W2025165005 @default.
- W2034785948 cites W2025700670 @default.
- W2034785948 cites W2026474760 @default.
- W2034785948 cites W2027139062 @default.
- W2034785948 cites W2028017511 @default.
- W2034785948 cites W2030086848 @default.
- W2034785948 cites W2031419787 @default.
- W2034785948 cites W2033200828 @default.
- W2034785948 cites W2039555640 @default.
- W2034785948 cites W2040687656 @default.
- W2034785948 cites W2043021329 @default.
- W2034785948 cites W2043904583 @default.
- W2034785948 cites W2044902657 @default.
- W2034785948 cites W2046551910 @default.
- W2034785948 cites W2048727228 @default.
- W2034785948 cites W2050035517 @default.
- W2034785948 cites W2050896953 @default.
- W2034785948 cites W2051196797 @default.
- W2034785948 cites W2051277235 @default.
- W2034785948 cites W2051779780 @default.
- W2034785948 cites W2053675483 @default.
- W2034785948 cites W2054007615 @default.
- W2034785948 cites W2055498297 @default.
- W2034785948 cites W2055521794 @default.