1 / 6

Understanding Impacts of Environmental Change on Lake Champlain Water Quality Andrew Schroth

Understanding Impacts of Environmental Change on Lake Champlain Water Quality Andrew Schroth. 20 th Century Environmental Change Preserved by Lake Sediments. 2010. 20 th Century Eutrophication: Increasing Carbon, Phosphorus, Bloom Indicators. Ag. Intensification ~1970 ( Missisquoi Basin).

martinezgrace
Download Presentation

Understanding Impacts of Environmental Change on Lake Champlain Water Quality Andrew Schroth

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Understanding Impacts of Environmental Change on Lake Champlain Water QualityAndrew Schroth

  2. 20th Century Environmental Change Preserved by Lake Sediments 2010 20th Century Eutrophication: Increasing Carbon, Phosphorus, Bloom Indicators Ag. Intensification ~1970 (Missisquoi Basin) Urbanization ~1960 (St. Albans) Sewer Expansion ~1900 (St. Albans) Europeans Arrive 1690

  3. Changes Revealed by Long-Term Monitoring Program 1992-present Detected Change: Decreasing River N Increasing River P Decreasing Wind Increasing Discharge Increasing Temp. Lake Response: Total N Total P TN:TP Bottom Line:

  4. Conceptual Model from Long-Term Monitoring: Opportunities to Prioritize and Partition Efforts! • Most sensitive to changes in river dissolved nutrient concentrations • Focus on suppressing dissolved nutrient loading from rivers • Most sensitive to internal nutrient loading and changes that impact that process • Control sediment P input and manipulate conditions/composition of lake sediments

  5. High frequency monitoring tells us more about agents and impacts of change Algal Blooms Environmental Conditions(weather, lake physics, chemistry) Combinations of biological, physical, chemical sensors allow us to understand the complex relationship between weather, lake and river flow, chemistry and biology and drivers of change

  6. Thank You! Contact: Andrew.Schroth@uvm.edu

More Related