1 / 11

Understanding Eutrophication: Empirical and Mechanistic Models

Learn about nutrient-driven plant growth, natural vs. cultural eutrophication, and the impact of phosphorus in freshwaters. Explore manifestations like algae bloom and oxygen depletion in this lab assignment. Temperature and transparency data analysis also covered.

rafael
Download Presentation

Understanding Eutrophication: Empirical and Mechanistic Models

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. The Product The Supplies CE5504. Lab 1 – Coupling Empirical and Mechanistic Models eutrophication: nutrient-driven stimulation of plant growth; contrast natural and cultural eutrophication; phosphorus is most often the limiting nutrient in freshwaters.

  2. Manifestations of eutrophication – algae and macrophytes

  3. Manifestations of eutrophication - transparency Dodson 2005

  4. Summer Spring Depth (m) Temperature (°C) Manifestations of eutrophication – oxygen depletion

  5. Manifestations of eutrophication – oxygen depletion

  6. mgO2L-1 A M J J A S Manifestations of eutrophication – oxygen depletion

  7. Q∙P W As V v∙As BUDGET MODEL for phosphorus

  8. 3 log Chl = 0.813log TP-0.240 R2 = 0.59 2 log chlorophyll (mgm-3) 1 0 (b) -1 -1 1 0 2 3 log total phosphorus (mgPm-3) TROPHIC STATE CORRELATIONS – phosphorus and chlorophyll

  9. (a) 3.0 2.0 Secchi Disk Transparency (m) 1.0 0.5 log SD = -0.54log Chl + 0.78 R2 = 0.76 10 50 2.5 5 25 50 Chlorophyll (mgm-3) TROPHIC STATE CORRELATIONS – chlorophyll and Secchi disk

  10. (c) Areal Hypolimnetic Oxygen Demand (gO2m-2d-1) AHOD = 0.0145TP + 0.47 R2 = 0.79 Total Phosphorus (mgPm-3) TROPHIC STATE CORRELATIONS – phosphorus and AHOD

  11. ASSIGNMENT: Lab 1. Coupling Empirical and Mechanistic Models

More Related