The LTAR Grazing Land Common Experiment at Archbold Biological Station-University of Florida

IF 2.2 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Journal of environmental quality Pub Date : 2024-06-16 DOI:10.1002/jeq2.20593
Elizabeth H. Boughton, Maria L. Silveira, Hilary Swain, Alia DeLong, Vivienne Sclater, Shefali Azad, Rosvel Bracho, Amartya Saha, Grégory Sonnier
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Abstract

The Archbold Biological Station-University of Florida (ABS-UF) Long-term Agroecosystem Research (LTAR) site lies in the heart of south-central Florida, representing subtropical humid grazing lands in North America and globally. Beef producers in this region face challenges due to climate variability, limited nutritive value of forages, poor soils, public concerns about water quality and greenhouse gas emissions, management trade-offs, economic uncertainty, and increasing urban encroachment. The ABS-UF Common Experiment, co-designed with stakeholders, will assess innovative management systems in comparison to prevailing management systems on key indicators of sustainability. Innovative management systems being tested are alternative fire (frequency and spatial extent) and grazing practices (stocking rate and system). The common experiment framework was implemented across a management intensity gradient spanning from native rangeland to cultivated pastures, including embedded wetlands. Issues that have arisen to date include difficulties in implementing prescribed fire and reduced productivity in cultivated pastures associated with innovative management, which led to an adjustment of the experimental treatment. A stakeholder advisory council will codesign future alternative treatments and guide experimental changes in this long-term experiment. Stakeholder engagement efforts revealed research priorities centered on financial strength, carbon (C) and greenhouse gas emissions, and water quality. Stakeholders are also interested in testing emerging technology such as the utility of virtual fencing. Results from ABS-UF provide a unique perspective from subtropical humid grazing lands for continental-scale cross-site synthesis on sustainable agroecosystems across LTAR.

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佛罗里达大学阿奇博尔德生物站的 LTAR 牧场共同实验。
佛罗里达大学阿奇博尔德生物站(ABS-UF)长期农业生态系统研究(LTAR)基地位于佛罗里达州中南部的中心地带,是北美乃至全球亚热带湿润牧场的代表。由于气候多变、牧草营养价值有限、土壤贫瘠、公众对水质和温室气体排放的担忧、管理权衡、经济不确定性以及日益严重的城市侵蚀,该地区的牛肉生产者面临着各种挑战。与利益相关者共同设计的 ABS-UF 共同实验将评估创新管理系统与现行管理系统在可持续性关键指标方面的比较。正在测试的创新管理系统包括替代火(频率和空间范围)和放牧方法(放牧率和系统)。共同实验框架的实施跨越了从原生牧场到栽培牧场(包括湿地)的管理强度梯度。迄今为止出现的问题包括在实施明火方面的困难,以及与创新管理相关的栽培牧场生产力下降,这导致了对实验处理的调整。利益相关者咨询委员会将对未来的替代处理方法进行编码设计,并指导这一长期实验中的实验变化。利益相关者的参与表明,研究重点集中在资金实力、碳(C)和温室气体排放以及水质方面。利益相关者还对测试新兴技术(如虚拟围栏的实用性)感兴趣。ABS-UF 的研究结果为亚热带湿润牧场提供了一个独特的视角,有助于对整个 LTAR 的可持续农业生态系统进行大陆尺度的跨地点综合研究。
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来源期刊
Journal of environmental quality
Journal of environmental quality 环境科学-环境科学
CiteScore
4.90
自引率
8.30%
发文量
123
审稿时长
3 months
期刊介绍: Articles in JEQ cover various aspects of anthropogenic impacts on the environment, including agricultural, terrestrial, atmospheric, and aquatic systems, with emphasis on the understanding of underlying processes. To be acceptable for consideration in JEQ, a manuscript must make a significant contribution to the advancement of knowledge or toward a better understanding of existing concepts. The study should define principles of broad applicability, be related to problems over a sizable geographic area, or be of potential interest to a representative number of scientists. Emphasis is given to the understanding of underlying processes rather than to monitoring. Contributions are accepted from all disciplines for consideration by the editorial board. Manuscripts may be volunteered, invited, or coordinated as a special section or symposium.
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