The role of wetland restoration in mediating phosphorus ecosystem services in agricultural landscapes

Phosphorus (P) is an essential plant nutrient that often limits agricultural productivity. Human activities, especially fertiliser use, have significantly altered the P cycle, causing eutrophication of aquatic systems. Restoring wetlands to agricultural landscapes can retain P, improving water quality and other ecosystem services. The effectiveness of P retention in restored wetlands varies with hydrology, soil properties, vegetation, and other factors. Challenges such as wetland P saturation, legacy P release, and plant invasions can limit P retention capacity. Furthermore, climate-related changes in temperature and hydrology have the potential to undermine long-term P retention. New methods such as Integrated Constructed Wetlands and new technologies that provide high-resolution temporal and spatial data enable managers to optimise multifunctionality in agricultural landscapes. •Wetlands restoration can improve water quality in agricultural landscapes.•P retention in restored wetlands varies with hydrology, soils, and vegetation.•Climate change and plant invasions may reduce wetland P retention.•New technologies and landscape planning will maximise wetland ecosystem services.