#GLIERTRUSTvirtual seminar Friday, Nov. 6 at 10:00 am by Dr. Helen Jarvie, University of Waterloo

Our next #GLIERTRUSTvirtual seminar is around the corner with renown expert Dr. Helen Jarvie from the University of Waterloo on Friday November 6th at 10am EST via Zoom. Dr. Jarvie’s seminar is entitled "A clearer view through murky waters? Eutrophication risk, resilience and recovery”. Abstract is provided below.  

Please don’t forget to register at: http://bit.ly/WindsortoWayne  & feel free to forward this invite to others who may be interested in attending.

Abstract:
Phosphorus (P) and nitrogen (N) are limiting nutrients for food production, yet we face an overabundance of P and N entering our rivers and lakes, from agricultural production and from wastewater discharges. This impairs water quality, undermines the health of aquatic ecosystems, and threatens water security. This seminar explores the challenges we face in eutrophication management. Changing patterns in nutrient use and management have led to a conundrum of simultaneous nutrient excesses and deficiencies, and the build-up of nutrient legacies in our watersheds, with varying residence times. The chronic release of P and N from these legacy stores may continue to impair river water quality for decades. Using the U.S. Western Lake Erie river tributaries as an example, we show how conservation measures designed to reduce nutrient losses from agricultural land may have inadvertently accelerated the accumulation of labile P at the soil surface and the losses of dissolved P, contributing to the ‘re-eutrophication’ of the western Lake Erie basin. In seeking solutions to eutrophication, there is a pressing need to better quantify nutrient sinks and sources in watersheds, and to ensure realistic expectations for mitigation strategies and timescales for recovery.

poster for GLIERT-RUST virtual seminar Dr. Helen Jarvie University of waterloo