The Open University since 2006
Alternatively you can skip the navigation by pressing 'Enter'.
Life Story: ParenthoodMonday, 26th September 2016 23:00 - BBC FourSome parents are more closely involved than others. Read more: Life Story: Parenthood
Life Story: CourtshipAvailable until Sunday, 23rd October 2016 01:25Without Tinder to rely on, how do animals find the right mate? Read more: Life Story: Courtship
BBC Inside Science - 2016/2017 series: What's left to explore?Available for over a year
Scotland and The Battle for Britain: Episode 2Available until Friday, 21st October 2016 01:35
Life Story: PowerAvailable until Sunday, 16th October 2016 01:35
European Day of LanguagesHappy European Day of Languages! Find out more about why we should celebrate language... Read more: European Day of Languages
Take the photographic memory testCan you capture scenes just by looking at them? Find out with our photographic memory test. Launch now: Take the photographic memory test
The lottery of birthThis free course, The lottery of birth, will look at both the big picture of the ‘lottery of... Try: The lottery of birth now
Organisations and management accountingThis free course, Organisations and management accounting, examines the nature of organisations,... Try: Organisations and management accounting now
Managing eutrophication is a key element in maintaining the earths biodiversity. Eutrophication is a process mostly associated with human activity whereby ecosystems accumulate minerals. This free course explains how this process occurs, what its effects on different types of habitat are, and how it might be managed.
After studying this course, you should be able to:
- describe the principal differences between a eutrophic and an oligotrophic ecosystem
- explain the mechanisms by which species diversity is reduced as a result of eutrophication (Questions 2.1 and 2.2)
- contrast the anthropogenic sources that supply nitrogen and phosphorus to the wider environment, and describe how these sources can be controlled (Question 3.1)
- describe how living organisms can be used as monitors of the trophic status of ecosystems (Question 4.1)
- compare the advantages and disadvantages of three different methods for combating anthropogenic eutrophication (Question 4.2).
- Current section: Introduction
- Learning outcomes
- 1 Introduction
- 2 Effects of eutrophication
- 3 Causes and mechanisms of eutrophication
- 4 Managing eutrophication
- 4.1 Measuring and monitoring eutrophication
- 4.2 Reducing eutrophication
- 4.3 Reducing the nutrient source
- 4.3 Reducing the nutrient source, continued
- 4.4 Reducing nutrient availability
- Keep on learning
Study this free course
Enrol to access the full course, get recognition for the skills you learn, track your progress and on completion gain a statement of participation to demonstrate your learning to others. Make your learning visible!
Eutrophication describes the biological effects of an increase in the concentration of nutrients. The collective term 'nutrients' refers to those elements that are essential for primary production by plants or other photosynthetic organisms. Eutrophication is most often caused by increases in the availability of nitrogen and phosphorus, commonly present in soil and water in the form of nitrate and phosphate, respectively. However, altered concentrations of any plant nutrient may have a recognizable biological effect. Eutrophication can occur in any aquatic system (freshwater or marine), and the term is also used to describe the process whereby terrestrial vegetation is affected by nutrient-enriched soil water.
This OpenLearn course provides a sample of level 2 study in
This free course includes adapted extracts from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Environmental Science courses or view the range of currently available OU Environmental Science courses.
Copyright & revisions
Originally published: Tuesday, 22nd March 2016
Last updated on: Tuesday, 22nd March 2016
- Creative-Commons: The Open University is proud to release this free course under a Creative Commons licence. However, any third-party materials featured within it are used with permission and are not ours to give away. These materials are not subject to the Creative Commons licence. See terms and conditions. Full details can be found in the Acknowledgements and our FAQs section.
- This site has Copy Reuse Tracking enabled - see our FAQs for more information.
If you enjoyed this, why not follow a feed to find out when we have new things like it? Choose an RSS feed from the list below. (Don't know what to do with RSS feeds?)
Remember, you can also make your own, personal feed by combining tags from around OpenLearn.
- Latest OpenLearn pages
- Latest pages from OpenLearn - Environmental Science
- Latest pages tagged - biodiversity
- Latest pages tagged - phytoplankton
- Latest pages tagged - ecosystem
- Latest pages tagged - algae
- Latest pages tagged - nitrogen
- Latest pages tagged - phosphorus
- Latest pages tagged - S216_1
- Latest comments on this page
All our alternative formats are free for you to download, for more information about the different formats we offer please see our FAQs. The most frequently used are Word (for accessibility), PDF (for print) and ePub and Kindle to download to eReaders*.
- Word (5 MB)
- PDF (6.4 MB)
- ePub 3.0 (4 MB)
- ePub 2.0 (4 MB)
- Kindle (1.5 MB)
- RSS (426 KB)
- HTML (3.5 MB)
- SCORM (3.5 MB)
- OUXML Package (48 KB)
- OUXML File (168 KB)
- IMS Common cartridge
*Please note you will need an ePub and Mobi reader for these formats.