Assessing gaseous emissions from manure storage systems: improving mitigation strategies for cold climates

农家肥管理是现代畜牧业面临的最大环境挑战之一。有效地控制和处理粪便对于最大限度地减少点源和非点源水污染的危害以及满足更严格的空气质量标准至关重要。在粪便的储存过程中，会释放出几种令人不快的气体，包括氨、甲烷和一氧化二氮。液体粪便系统的厌氧特性也增加了其产生气味的潜力。因此，已经提出了几项管理战略，以减少仓库的气体排放。这项研究计划的目标是量化粪便储存所排放的多种气体，并制定减少其排放的策略，同时还研究具体的权衡问题。在接下来的五年里，我们将通过这一新颖的研究计划培养3名博士、3名硕士和1名研究技术员。利用独特和最先进的研究设施，我们将同时量化来自不同管理系统的排放，这将使我们能够针对加拿大的气候条件制定农场一级的建议。这项研究将提供将粪便储存设施的温室气体、氨和气味排放联系起来的新知识，并将对加拿大准确估计农业部门排放的能力产生重大影响。

On-farm manure management is one of the most significant environmental challenges facing modern livestock agriculture. Containing and treating manure in an efficient manner is essential to minimize the hazards of both point and non-point source water pollution and also meet more stringent air quality standards. During the storage of manure, several undesirable gases including ammonia, methane and nitrous oxide can be released. The anaerobic nature of liquid manure systems also increases its potential for odour production. Several management strategies have therefore been suggested to mitigate gaseous emissions from storages. The objectives of this research program are to quantify emissions of multiple gases emanating from manure storages and develop strategies for their reduction while also examining specific tradeoff issues. Over the next five-years we will train 3 PhD, 3 MSc and a research technician through this novel research program. Utilizing a unique and state-of-the-art research facility we will quantify emissions from different management systems simultaneously which will allow for the development of farm-level recommendations for Canadian climatic conditions. This research will provide new knowledge linking greenhouse gas, ammonia and odour emissions from manure storage facilities and will have a significant impact on Canada's ability to accurately estimate emissions from the agriculture sector.