1 / 33

PHOSPHATE IN LAKES AND STREAMS

This article explores the role of phosphorus in aquatic ecosystems, focusing on its forms and sources in lakes and streams. It discusses particulate and dissolved phosphorus, including orthophosphates and polyphosphates, and their interactions with living organisms, sediments, and organic matter. The nutrient profiles of stratified lakes, particularly the impact of anthropogenic sources, are examined with case studies from notable water bodies like Chesapeake Bay and Lake Erie. Understanding these dynamics is crucial for managing water quality and freshwater ecosystems.

willa
Télécharger la présentation

PHOSPHATE IN LAKES AND STREAMS

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. PHOSPHATE IN LAKES AND STREAMS

  2. PHOSPHORUS IN SURFACE WATER • PARTICULATE PHOSPHORUS • In living things • In minerals or adsorbed to clays, etc. • Adsorbed to dead organics • DISSOLVED PHOSPHORUS • Orthophosphates • Polyphosphates • Organic molecules with phosphorus • Esters of phosphate

  3. P IN STRATIFIED LAKES

  4. TOTAL P AND CHLOROPHYLL

  5. NUTRIENT PROFILES OF THE RIFT LAKES SRP= Soluble Reactive Phosphate

  6. PHOSPHATE CYCLE

  7. RED MUD – BLACK MUD

  8. P AT SEDIMENT – WATER INTERFACE

  9. Chambers oxygenated Chambers anoxic

  10. Conditions 30cm from bottom in 14M deep lake.

  11. SULFATE REDUCING BACTERIA AND RELEASE OF PHOSPHATE

  12. EPIPELIC ALGAE, PH & PHOSPHATE

  13. MACROPHYTES PUMPING P FROM SEDIMENT TO WATER COLUMN

  14. FORMS OF P IN THE EPILIMNION

  15. CALCITE AND P ADSORPTION

  16. ANTHROPOGENIC SOURCES

  17. PHOSPHORUS AND LAKE 226

  18. P AND PRIMARY PRODUCTION

  19. PRODUCTIVITY AND TOTAL PHOSPHORUS

  20. NUTRIENT LOADING • WATERSHED AREA • AREAL INPUT RATE • FLUSHING RATE • EXTENT OF MIXING

  21. SOURCES FOR NUTRIENT LOADING IN CHESAPEAKE BAY

  22. POINT-SOURCE DECLINE IN PHOSPHATE LOADING IN CHESAPEAKE BAY

  23. LAKE POWELL AND LAKE MEADE

  24. MISSISSIPPI RIVER

  25. LAKE PONCHARTRAIN

  26. LAKE PONCHARTRAIN

  27. LAKE ERIE

More Related