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Abstract: This research addressed measures necessary to overcome barriers to the implementation of integrated resource management solutions delivering multiple ecosystem services, using the case of the Anne Valley integrated constructed wetlands (ICWs) in County Waterford, Ireland. The benefits of ICWs are reviewed, and feedback from interviews with a range of people from farming, national government and policy, business, County Council and other perspectives, is analysed using the STEEP framework. Whilst we acknowledge bias in interviewee selection, there is considerable local support for ICWs reflecting multiple social, environmental and economic benefits. Indeed, the Irish government has published design guidance for ICWs. However, there remain disconnects between some regulatory and other bodies, which appear to be related to their tradition of looking at issues from a more narrow, discipline-specific perspective. These barriers are not unique to Ireland, but representative of the areas of cultural change necessary to enable more connected ways of thinking, technological development and implementation and its subsequent licensing and regulation. The experience therefore has generic relevance not merely for the broader pervasion of the benefits of ICWs across Ireland and the wider world, but also in evaluating and implementing the efficacy of similar multi-benefit solutions. [Copyright &y& Elsevier]

Agriculture is responsible for 98% of atmospheric ammonia (NH 3) in Ireland, of which pigs and poultry produce 7%; with laying hens specifically contributing 0.6%. Though a small proportion of the national NH 3 total emissions, the ecological impacts on sensitive sites attributed to laying hen farms can be substantial. NH 3 emission monitoring was conducted in Spring (February to March) and Summer (July to August) 2016 to account for seasonal variation. The total average emission and ventilation rate was 0.25 g bird−1 day−1 and 931 cm3 s−1 bird−1. This is lower than the previously used emission factor for the Irish national inventory of 0.5 g bird−1 day−1, but broadly similar to factors reported in the United Kingdom (UK) and the European Union (EU). Dispersion modelling using monitored data indicated potentially acute effects within 84 m, critical level exceedance within 312 m and exceedance of 0.3 kg N ha−1 year−1 deposition within 2.9–5.2 km. The sensitivity of the model was tested using SCAIL-Agriculture emission and ventilation rates which showed P-values for one tailed critical level below 0.01 for all models, indicating that when normalised the maximum extents modelled by AERMOD were significantly different. This analysis showed emission rate having more influence than ventilation rate. Both parameters combined had the greatest increase in dispersion extent, on average 55.8% greater than the use of monitored rates. A deposition rate of 0.3 kg N ha−1 year−1 was modelled to occur within 5.1–7.7 km when using SCAIL-Agriculture rates. Indicating that the use of SCAIL-Agriculture recommended emission and ventilation rates would have been sufficiently precautionary to assess negative ecological effects on a Natura 2000 site under the Habitats Directive (92/43/EEC). In relation to Appropriate Assessment (AA) screening, the use of any contribution from a source within a set distance may be an appropriate full AA trigger. Image 1 • Monitored average NH 3 emission rate of 0.25 g bird−1 day−1. • Monitored average ventilation rate of 931 cm3 s−1 bird−1. • Potential critical level exceedance within 312 m of farm border from source alone. • 0.3 kg N ha−1 year−1 exceeded within 2.9–5.2 km of farm border from source alone. • Modelled dispersion using SCAIL-Agriculture rates was 55.8% greater than monitored. [ABSTRACT FROM AUTHOR]