HARMONISED NUTRIENT LOAD REDUCTION APPROACHES WITHIN SAFE ECOLOGICAL BOUNDARIES IN CATCHMENTS LOCATED IN NW EU

2015年，据报道，欧洲西北部75% -90%的地表水生态状况不佳。来自农业的氮(N)和磷(P)的弥漫性污染，以及来自污水处理厂和工业的氮和磷污染的点源，是导致这种情况未能达到良好生态状态的主要原因。气候变化可能会加剧污染风险。显然，在气候变化的背景下，实施有效的缓解措施以减少空气和水的营养负荷以实现预期的环境目标是一项巨大的挑战。缓解气候变化的管理行动与缓解氮磷污染的管理行动之间的协同作用和权衡需要得到澄清，以制定有效的地方、区域和国家政策。执行和监测必要行动的管理安排需要更好地结合起来，需要一套连贯一致的环境指标。新harmonica的总体目标是评估和共同制定一套统一的系统方法，以优先考虑一套有效的氮和磷污染缓解措施和指标，以实现当地至区域的环境目标。为了实现这一目标，一个经验丰富的NEW-HARMONICA联盟（来自3个国家的4个合作伙伴）将在欧洲西北部4个受氮和磷污染的跨境河流流域开展工作，并具备互补的专业知识、技能和网络。所有合作伙伴都参与了已建立的西北欧洲政策科学工作组（PSWG），该工作组与当地流域利益相关者一起在NEW-HARMONICA中发挥核心作用。NEW-HARMONICA的方法基于技术评估的结合，包括量化研究流域的N和P流量和负荷减少目标，治理安排的评估，以及共同制定统一环境政策的政策支持，基于强有力的证据基础以及与PSWG和当地利益相关者的互动。

In 2015, the ecological status of 75-90% of surface waters in NW Europe was reported to be less than good. Diffuse pollution with nitrogen (N) and phosphorus(P) from agriculture, together with point sources of N and P pollution from wastewater plants and industry, are a major cause of this failure to achieve good ecological status. Climate change is likely to exacerbate the pollution risk. Clearly, there is a huge challenge to implement effective mitigation measures to reduce nutrient loadings to air and water to meet desired environmental targets against the background of a changing climate. The synergies and trade-offs between management actions to mitigate climate change and those to mitigate N and P pollution need to be clarified to develop effective local, regional and national policies. Governance arrangements to implement and monitor the necessary actions need to be better integrated, requiring a consistent and coherent set of environmental indicators. The overall objective of NEW-HARMONICA is to assess and co-develop a harmonised systemic approach to prioritizing an effective suite of N and P pollution mitigation measures and indicators to meet local to regional environmental targets. To achieve this objective, an experienced NEW-HARMONICA consortium (4 partners from 3 countries) with complementary expertise, skills and networks will work on 4 N and P-polluted cross-border river basins in NW Europe. All partners are involved in an established NW Europe Policy-Science Working Group (PSWG) who together with local catchment stakeholders play a central role in NEW-HARMONICA. NEW-HARMONICA’s approach is based on a combination of technical assessments, including quantification of N and P flows and load-reduction targets in the study catchments, assessments of governance arrangements, and policy support for the co-development of harmonised environmental policies, based on a strong evidence base and interactions with the PSWG and local stakeholders.