TY - JOUR

T1 - Manure Acidification and Air Cleaners for Ammonia Abatement

T2 - A Holistic Assessment of the Costs and Effects on Terrestrial, Freshwater and Marine Ecosystems

AU - Geels, Camilla

AU - Gyldenkærne, Steen

AU - Nyord, Tavs

AU - Andersen, Hans Estrup

AU - Molina-Navarro, Eugenio

AU - Trolle, Dennis

AU - Thodsen, Hans

AU - Bak, Jesper L.

AU - Konrad, Maria Theresia

AU - Hasler, Berit

AU - Hansen, Kaj M.

AU - Christensen, Jesper H.

AU - Timmermann, Karen

N1 - Funding Information: This study was mainly funded by the DCE-Danish Center for Environment and Energy through the DEEMON project. The funding sources had no involvement in the study design. Publisher Copyright: © 2023 by the authors.

PY - 2023

Y1 - 2023

N2 - Manure acidification has been introduced as an abatement to reduce ammonia (NH3) emissions to improve air quality and protect terrestrial and aquatic environments from nitrogen deposition. A successful regulation of NH3 emissions using manure acidification might, however, result in increased nitrogen leaching from fertilized fields with adverse effects on freshwater and marine ecosystems, if the overall fertilizer application rate in the fields is not adjusted according to the increased fertilizer value of the manure. We apply a holistic model framework encapsulating all important environmental compartments to assess the ecological and economic consequences of a specific agricultural practice or a combination of these. The results show that manure acidification combined with air cleaners reduces NH3 emission and atmospheric nitrogen deposition with substantial positive effects on the terrestrial environment. Although manure acidification results in a slight increase in total nitrogen input into freshwater and marine ecosystems, the subsequent increase in chlorophyll a concentration and decrease in water transparency is insignificant. Hence, according to the model results, manure acidification will improve terrestrial nature quality, with no significant adverse effects on the aquatic environments.

AB - Manure acidification has been introduced as an abatement to reduce ammonia (NH3) emissions to improve air quality and protect terrestrial and aquatic environments from nitrogen deposition. A successful regulation of NH3 emissions using manure acidification might, however, result in increased nitrogen leaching from fertilized fields with adverse effects on freshwater and marine ecosystems, if the overall fertilizer application rate in the fields is not adjusted according to the increased fertilizer value of the manure. We apply a holistic model framework encapsulating all important environmental compartments to assess the ecological and economic consequences of a specific agricultural practice or a combination of these. The results show that manure acidification combined with air cleaners reduces NH3 emission and atmospheric nitrogen deposition with substantial positive effects on the terrestrial environment. Although manure acidification results in a slight increase in total nitrogen input into freshwater and marine ecosystems, the subsequent increase in chlorophyll a concentration and decrease in water transparency is insignificant. Hence, according to the model results, manure acidification will improve terrestrial nature quality, with no significant adverse effects on the aquatic environments.

KW - agricultural practice

KW - atmospheric deposition

KW - cost efficiency

KW - environmental effects

KW - eutrophication

KW - manure

KW - mitigation methods

KW - pollution swapping

U2 - 10.3390/agronomy13020283

DO - 10.3390/agronomy13020283

M3 - Journal article

AN - SCOPUS:85149131605

VL - 13

JO - Agronomy

JF - Agronomy

SN - 2073-4395

IS - 2

M1 - 283

ER -