Conclusion Fluvial Suspended sediment Phosphorus Diffuse pollution Water quality

Fluvial; Suspended sediment; Phosphorus; Diffuse pollution; Water quality; Headwater; Connectivity; Grassland
1. Introduction
Such information is valuable and necessary to inform mitigation strategies for reducing diffuse water pollution from agriculture (DWPA) in the UK (McGonigle et al., 2014). The development of a solid evidence INCB28060 prior to the implementation of mitigation measures is required to: a) determine the effectiveness of control measures (e.g., Wilkinson et al., 2014); b) assess the cost-effectiveness of resource allocation (e.g., Posthumus et al., 2013); and c) enable reliable and transparent decisions to be made about future catchment operations (Collins et al., 2012).