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Manureshed management to overcome longstanding nutrient imbalances in US agriculture
Resources, Conservation and Recycling ( IF 13.2 ) Pub Date : 2022-09-20 , DOI: 10.1016/j.resconrec.2022.106632
K.Colton Flynn, Sheri Spiegal, Peter J.A. Kleinman, Robert J. Meinen, Douglas R. Smith

The uncoupling of animal and crop production has resulted in long-term accumulation of manure nutrients in many areas, contributing to nutrient pollution. Prudent recycling of manure's nutrient resources requires reconnecting operations that produce manure with agricultural lands in need of nutrients. Thus the need to frame manure management via “manuresheds": the land (i.e. cropland, rangeland) surrounding livestock production operations where nutrients can be recycled on agricultural lands while balancing goals for production, environmental quality, and quality of life. We explore manureshed management as an evolution of national, regional, and local trends in nutrient sources and sinks. Results of our temporal assessments highlight not only system inertia, but the dynamic nature of nutrient flows and the potential for manureshed management to reverse nutrient imbalances at various scales. As a tool for a circular economy, manureshed management requires coordination beyond the farmgate, engaging specialists, industries, and other stakeholders.



中文翻译:

肥料管理以克服美国农业中长期存在的养分失衡

畜牧业生产脱钩导致许多地区粪便养分长期积累,造成养分污染。谨慎地循环利用粪便的养分资源需要将生产粪便的操作与需要养分的农田重新联系起来。因此,需要通过“粪肥”来构建粪便管理:围绕牲畜生产作业的土地(即农田、牧场),在这些土地上,养分可以在农田上循环利用,同时平衡生产、环境质量和生活质量的目标。我们探索粪肥管理作为国家、区域和地方营养源和汇趋势的演变。我们的时间评估结果不仅突出了系统惯性,但养分流动的动态性和肥料管理在不同规模上扭转养分失衡的潜力。作为循环经济的工具,肥料管理需要在农场之外进行协调,让专家、行业和其他利益相关者参与进来。

更新日期:2022-09-20
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