Objectives Ammonia emissions represent a growing issue for European countries due to the rapid increase in livestock production and next National Emission Ceilings EU Directive adoption, which will limit emissions of NH3 as well as SO2, NOx and NMVOC applicable from 2020 and 2030. Recent researches are devoted to the individuation of standard methods for reliable assessment, consequently many European countries are now building national emissions inventory. The main issue is a lack of data about ammonia losses from buffalo manure, under Mediterranean climate. Buffalo is reared mostly in South Italy, and even if well studied, there are not researches about ammonia emissions. Besides measurement method itself, meteorological conditions influence emissions too. In this paper, ammonia emissions assessment from buffalo manure application to the field under Mediterranean climate is proposed, with aim of giving first data for this animal species. Methods During summer period of 2016 an experimental trial combining the use of three wind tunnel (WT) and Micrometeorological method specifically Integrate Horizontal flux (IHF) in circular plot was carried out. Buffalo slurry was applied with splash plate spreader for IHF and manually under WT. Acid traps were used to assess ammonia fluxes from WT. Acid solutions were replaced every 2 hours for the first two days and every three to four hours for the remaining two days. Glass tubes were employed for IHF method, sampled with same time step of WT. Meteorological data were acquired during the trial and soil samples were taken at the end of each day for pH and NH4-N and NO3-N. Results Results confirm the reliability of WT assessments in ammonia emissions compared to IHF method. The total ammonia fluxes is in the order of about 40% and 50% (of applied TAN) for WT and IHF, respectively. Moreover, it appears that ammonia loss had a positive relationship with air Temperature and wind speed
Ammonia emissions assessment after buffalo slurry application to bare soil in Mediterranean climate / SCOTTO DI PERTA, Ester; Fiorentino, Nunzio; Gioia, Laura; Faugno, Salvatore; Cervelli, Elena; Pindozzi, Stefania. - (2017). (Intervento presentato al convegno 11th International AIIA Conference “Biosystems Engineering addressing the human challenges of the 21st century” tenutosi a Bari nel July 5-8, 2017).
Ammonia emissions assessment after buffalo slurry application to bare soil in Mediterranean climate
SCOTTO DI PERTA, ESTER;FIORENTINO, NUNZIO;GIOIA, LAURA;FAUGNO, SALVATORE;CERVELLI, ELENA;PINDOZZI, STEFANIA
2017
Abstract
Objectives Ammonia emissions represent a growing issue for European countries due to the rapid increase in livestock production and next National Emission Ceilings EU Directive adoption, which will limit emissions of NH3 as well as SO2, NOx and NMVOC applicable from 2020 and 2030. Recent researches are devoted to the individuation of standard methods for reliable assessment, consequently many European countries are now building national emissions inventory. The main issue is a lack of data about ammonia losses from buffalo manure, under Mediterranean climate. Buffalo is reared mostly in South Italy, and even if well studied, there are not researches about ammonia emissions. Besides measurement method itself, meteorological conditions influence emissions too. In this paper, ammonia emissions assessment from buffalo manure application to the field under Mediterranean climate is proposed, with aim of giving first data for this animal species. Methods During summer period of 2016 an experimental trial combining the use of three wind tunnel (WT) and Micrometeorological method specifically Integrate Horizontal flux (IHF) in circular plot was carried out. Buffalo slurry was applied with splash plate spreader for IHF and manually under WT. Acid traps were used to assess ammonia fluxes from WT. Acid solutions were replaced every 2 hours for the first two days and every three to four hours for the remaining two days. Glass tubes were employed for IHF method, sampled with same time step of WT. Meteorological data were acquired during the trial and soil samples were taken at the end of each day for pH and NH4-N and NO3-N. Results Results confirm the reliability of WT assessments in ammonia emissions compared to IHF method. The total ammonia fluxes is in the order of about 40% and 50% (of applied TAN) for WT and IHF, respectively. Moreover, it appears that ammonia loss had a positive relationship with air Temperature and wind speedI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
