Farmyards are commonly conceptualized as point sources of nutrient pollution nested within the wider agricultural landscape. However, within farmyards there are individual sources and delivery pathways, each of which is affected by a range of management practices and infrastructure. Rainfall mobilizes these nutrients, which may then be delivered to a receptor or to the wider drainage network. As such, the nutrient transfer continuum (NTC), which has been established as a framework to understand and mitigate nutrient loss at a landscape scale, can be similarly applied to disentangle the stages of nutrient transfer from farmyards. The NTC differentiates nutrient transfer into source, mobilization, delivery, and impact stages. This differentiation allows targeting of mitigation measures and evaluation of costs and benefits. This review paper applies the NTC template to farmyard nitrogen and phosphorus transport to conceptualize causative factors and to identify mitigation options.

中文翻译：

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将养分转移连续统框架应用于从畜牧场到水道的磷和氮损失

农场通常被概念化为嵌套在更广泛的农业景观中的养分污染的点源。然而，在农场内有不同的来源和交付途径，每一个都受到一系列管理实践和基础设施的影响。降雨会调动这些营养物质，然后将其输送到受体或更广泛的排水网络。因此，养分转移连续体 (NTC) 已被确立为在景观尺度上理解和减轻养分损失的框架，可以类似地应用于解开农场养分转移的各个阶段。NTC 将营养转移分为来源、动员、交付和影响阶段。这种区分允许针对缓解措施和成本和收益的评估。