Phosphorus enrichment in waterbodies can increase the risk of eutrophication and be detrimental to the health of dependent ecosystems. Phosphorus is a common reason for a waterbody failing to meet the Water Framework Directive ‘good’ status. The Watton Brook (Norfolk, UK) is required to meet good status by 2027; it currently has an overall ‘moderate’ status and a ‘poor’ status for phosphate (as of 2016 classification). Source apportionment modelling predicts treated effluent from water recycling centres is the primary phosphorus source to the Watton Brook, followed by significant agricultural contributions. Considering the agricultural sector input and the cost of upgrading sewage treatment, this study took a stakeholder- and ecosystem services-led approach to explore catchment-based solutions. The feasibility for an integrated catchment approach builds on detailed environmental conceptualisation, phosphorus source apportionment ground-truthing and a review of potential costs and benefits. By combining Farmscoper, SIMCAT-SAGIS InVEST modelling and an ecosystem services assessment, the study targeted solutions to reduce phosphorus loading while delivering multiple benefits. The feasibility and natural capital enhancement focus of a phosphorus balancing scheme in the Watton Brook ensures that the proposed solutions are cost-beneficial for both the wastewater company and its customers while offering wider benefits for the environment and the local community.

中文翻译：

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英国沃顿布鲁克的磷管理综合方法

水体中磷的富集会增加富营养化的风险，并损害依赖生态系统的健康。磷是水体未能达到水框架指令“良好”状态的常见原因。Watton Brook（英国诺福克）必须在 2027 年之前达到良好状态；它目前总体上处于“中等”状态和磷酸盐“差”状态（截至 2016 年分类）。源分配模型预测，水循环中心处理过的污水是沃顿溪的主要磷源，其次是重要的农业贡献。考虑到农业部门的投入和污水处理升级的成本，本研究采用以利益相关者和生态系统服务为主导的方法来探索基于集水区的解决方案。综合集水区方法的可行性建立在详细的环境概念化、磷源分配地面实况以及对潜在成本和收益的审查之上。通过结合 Farmscoper、SIMCAT-SAGIS InVEST 建模和生态系统服务评估，该研究针对减少磷负荷的解决方案，同时提供多种好处。沃顿布鲁克磷平衡计划的可行性和自然资本增强重点确保了拟议的解决方案对废水公司及其客户都具有成本效益，同时为环境和当地社区提供更广泛的利益。SIMCAT-SAGIS InVEST 建模和生态系统服务评估，该研究针对减少磷负荷的解决方案，同时提供多种好处。沃顿布鲁克磷平衡计划的可行性和自然资本增强重点确保了拟议的解决方案对废水公司及其客户都具有成本效益，同时为环境和当地社区提供更广泛的利益。SIMCAT-SAGIS InVEST 建模和生态系统服务评估，该研究针对减少磷负荷的解决方案，同时提供多种好处。沃顿布鲁克磷平衡计划的可行性和自然资本增强重点确保了拟议的解决方案对废水公司及其客户都具有成本效益，同时为环境和当地社区提供更广泛的利益。