Iman Rusmana | Bogor Agricultural University, Indonesia (original) (raw)
Address: Bogor, West Java, Indonesia
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Papers by Iman Rusmana
Limnology and Oceanography, 2011
Abstract We measured benthic denitrification (DN) and dissimilatory reduction of nitrate to ammon... more Abstract We measured benthic denitrification (DN) and dissimilatory reduction of nitrate to ammonium (DNRA) using the isotope-pairing technique in three tropical estuaries in Thailand (Mae Klong), Indonesia (Cisadane), and Fiji (Vunidawa-Rewa) during rainy, dry, ...
HAYATI Journal of Biosciences, 2015
Jurnal Agronomi Indonesia, 2007
HAYATI Journal of Biosciences, 2015
Journal of Fisheries and Aquatic Science, 2015
Medical Journal of Indonesia, 1998
Microbiology Indonesia, May 17, 2010
Microbiology Indonesia, Jun 25, 2013
Nitrous oxide (N,O) in the atmosphere increases approximately 0.2-0.3% per year. The increasing o... more Nitrous oxide (N,O) in the atmosphere increases approximately 0.2-0.3% per year. The increasing of N,O formation is correlated positively with inorganic nitrogen compounds loading into aquatic and terrestrial environments. Three microbial pathways that form N,O are nitrification, denitrification, and dissimilatory nitrate reduction to ammonium (DRNA). Generally, nitrification is the predominant N,O formation process in aerobic condition, while denitrification and DRNA in anaerobic condition. Further description of bacterial N,O formation pathway properties is briefly discussed in this paper.
Porewater vertical profiles of nitrate, nitrite, ammonium, and nitrous oxide (N,O) in the sedimen... more Porewater vertical profiles of nitrate, nitrite, ammonium, and nitrous oxide (N,O) in the sediments of the lower (Brightlingsea) and upper (Hythe) Colne estuary, England, were examined down to 15 cm depth in January, March, June, and October 2000. High concentration of nitrate was found in 1-3 cm depth and in January was higher than at other sampling times. Similar profile trends were also found in nitrite and N,O profiles that were higher in upper layers of sediments. Ammonium eoneentration, in contrast, increased with increasing depth. Measurements of nitrateinitrite exchange rate and N,O formation were undertaken in Brigthlingsea, Alresford, and Hythe sediments. Hythe sediment had the highest nitratelnitrite exchange rate. The N,O formation was higher in Hythe and Alresford from reduction of nitrate and nitrite. N,O production from nitrite was 6-11 times greater than from nitrate.
Limnology and Oceanography, 2011
Abstract We measured benthic denitrification (DN) and dissimilatory reduction of nitrate to ammon... more Abstract We measured benthic denitrification (DN) and dissimilatory reduction of nitrate to ammonium (DNRA) using the isotope-pairing technique in three tropical estuaries in Thailand (Mae Klong), Indonesia (Cisadane), and Fiji (Vunidawa-Rewa) during rainy, dry, ...
HAYATI Journal of Biosciences, 2015
Jurnal Agronomi Indonesia, 2007
HAYATI Journal of Biosciences, 2015
Journal of Fisheries and Aquatic Science, 2015
Medical Journal of Indonesia, 1998
Microbiology Indonesia, May 17, 2010
Microbiology Indonesia, Jun 25, 2013
Nitrous oxide (N,O) in the atmosphere increases approximately 0.2-0.3% per year. The increasing o... more Nitrous oxide (N,O) in the atmosphere increases approximately 0.2-0.3% per year. The increasing of N,O formation is correlated positively with inorganic nitrogen compounds loading into aquatic and terrestrial environments. Three microbial pathways that form N,O are nitrification, denitrification, and dissimilatory nitrate reduction to ammonium (DRNA). Generally, nitrification is the predominant N,O formation process in aerobic condition, while denitrification and DRNA in anaerobic condition. Further description of bacterial N,O formation pathway properties is briefly discussed in this paper.
Porewater vertical profiles of nitrate, nitrite, ammonium, and nitrous oxide (N,O) in the sedimen... more Porewater vertical profiles of nitrate, nitrite, ammonium, and nitrous oxide (N,O) in the sediments of the lower (Brightlingsea) and upper (Hythe) Colne estuary, England, were examined down to 15 cm depth in January, March, June, and October 2000. High concentration of nitrate was found in 1-3 cm depth and in January was higher than at other sampling times. Similar profile trends were also found in nitrite and N,O profiles that were higher in upper layers of sediments. Ammonium eoneentration, in contrast, increased with increasing depth. Measurements of nitrateinitrite exchange rate and N,O formation were undertaken in Brigthlingsea, Alresford, and Hythe sediments. Hythe sediment had the highest nitratelnitrite exchange rate. The N,O formation was higher in Hythe and Alresford from reduction of nitrate and nitrite. N,O production from nitrite was 6-11 times greater than from nitrate.