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Chapter 20: Problem 11

Distinguish between natural and cultural eutrophication.

Short Answer

Expert verified
Natural eutrophication is a slow, organic ecological process that contributes to the nutrient richness of aquatic ecosystems, while cultural eutrophication is a rapid, human-induced form of water pollution that disrupts ecosystems by causing excessive plant and algae growth.

Step by step solution

01

Define Natural Eutrophication

Natural eutrophication is a slow, organic process that involves the accumulation of nutrients in bodies of fresh water. This occurs over numerous centuries and results in nutrient-rich waters and abundant growth of aquatic plants and algae. It is a natural process and a part of aging in aquatic ecosystems.
02

Define Cultural Eutrophication

Cultural or anthropogenic eutrophication is a type of water pollution caused by human activities. Excessive amounts of nutrients, particularly phosphates and nitrates, are discharged into bodies of water due to industrial waste, farming runoff, or sewage disposal. This leads to an explosive growth of plants and algae, disrupts the aquatic ecosystem, and depletes the available oxygen, often resulting in the death of other organisms.
03

Articulate the Difference

The primary difference between natural and cultural eutrophication is the source and speed of the nutrient accumulation. Natural eutrophication is a slow, natural process, whereas cultural eutrophication is a comparatively rapid process caused by human actions. Cultural eutrophication can have detrimental effects on aquatic ecosystems and biodiversity.

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Most popular questions from this chapter

Describe the TMDL program. How does it address nonpoint-source pollution, and what role do water quality criteria play in the program?

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Why is secondary treatment also called biological treatment? What is the principle involved? What are the two alternative techniques used?

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