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

农场粪便管理是现代畜牧业面临的最重大的环境挑战之一。有效地容纳和处理粪肥对于尽量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。在储存粪便的过程中，会释放出一些不需要的气体，包括氨、甲烷和氧化亚氮。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，提出了若干管理战略，以减少储存的气体排放。本研究项目的目标是量化粪便储存中产生的多种气体的排放，并制定减少排放的策略，同时研究具体的权衡问题。在接下来的五年里，我们将通过这个新颖的研究项目培养3名博士，3名硕士和一名研究技术人员。利用独特和最先进的研究设施，我们将同时量化不同管理系统的排放量，这将允许针对加拿大气候条件制定农场级建议。这项研究将提供新的知识，将温室气体、氨和粪便储存设施的气味排放联系起来，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.