Toward better targeting of mitigation measures for reducing phosphorus losses from land to water: Andrew Sharpley's legacy in Norway and Sweden.

IF 2.2 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Jian Liu, Faruk Djodjic, Barbro Ulén, Helena Aronsson, Marianne Bechmann, Lars Bergström, Tore Krogstad, Katarina Kyllmar
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引用次数: 0

Abstract

Nordic agriculture faces big challenges to reduce phosphorus (P) loss from land to water for improving surface water quality. While understanding the processes controlling P loss and seeking for P mitigation measures, Norwegian and Swedish researchers have substantially benefited from and been inspired by Dr. Andrew Sharpley's career-long, high-standard P research. Here, we demonstrate how Sharpley and his research have helped the Nordic researchers to understand the role of cover crops in cold environmental conditions, best manure P management practices, and ditch processes. His work on critical source area (CSA) identification and site assessment tool development have also greatly inspired our thinking on the targeting of mitigation measures and the contextualizing tools for Nordic climate, landscape, and soils. While reflecting on Sharpley's legacy, we identify several needs for Norwegian and Swedish P research and management. These include (1) tackling the challenges caused by local/regional unevenness in livestock density and related manure management and farm P surpluses, (2) identifying CSAs of P loss with high erosion risk and high P surplus, (3) obtaining more high-resolution mapping of soils with low P sorption capacity both in the topsoil and subsoil, (4) improving cross-scale understanding of processes and mitigation measures and proper follow-up of applied mitigation measures, and (5) increasing collaborations of researchers with farmers and farmers' advisory groups and watershed groups by developing high-quality educational courses and extension materials. The needs should be addressed in the context of the challenges and opportunities created by climate change.

为减少磷从陆地流失到水中而采取的减缓措施的更佳针对性:安德鲁-夏普利(Andrew Sharpley)在挪威和瑞典留下的遗产。
北欧农业在减少磷(P)从土地流失到水中以改善地表水质量方面面临巨大挑战。挪威和瑞典的研究人员在了解控制磷流失的过程和寻求磷减排措施的同时,也从安德鲁-夏普利(Andrew Sharpley)博士长达数十年的高标准磷研究中获益匪浅。在此,我们将展示沙普利及其研究如何帮助北欧研究人员了解覆盖作物在寒冷环境条件下的作用、最佳粪肥磷管理实践以及沟渠过程。他在关键源区(CSA)识别和场地评估工具开发方面的工作也极大地启发了我们对减缓措施的针对性以及北欧气候、景观和土壤背景工具的思考。在反思夏普利的遗产的同时,我们确定了挪威和瑞典在P研究和管理方面的若干需求。这些需求包括:(1) 应对地方/地区牲畜密度不均衡、相关粪肥管理和农场钾过剩所带来的挑战;(2) 识别具有高侵蚀风险和高钾过剩的钾损失CSA;(3) 对表土和底土中钾吸附能力较低的土壤进行更高分辨率的测绘、(5) 通过开发高质量的教育课程和推广材料,加强研究人员与农民、农民咨询小组和流域小组的合作。应结合气候变化带来的挑战和机遇来满足这些需求。
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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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