Problem

Uncontrolled river erosion

Other Names:
Unprotected river banks
Harmful erosion of watercourses
Nature:
Soil erosion can have a number of harmful effects on watercourses and their use. It produces sediment whose deposit can result in flooding, the filling-in of channels, and other harmful effects. Erosion may also cause damage to the banks and beds of watercourses.
Background:
Eroded soils are, by volume, the greatest pollutant of lakes and rivers. While most sediment comes from overland erosion throughout a watershed, river bank erosion is a major contributor. In aquatic environments, sediment pollution: Degrades aquatic and nearshore land habitats, killing aquatic organisms and negatively impacting birds and animals which depend on aquatic habitats; Reduces water clarity, light penetration, and plant productivity; Causes warming (which is most serious in cold water trout streams); Releases nutrients stimulating undesirable plant and algae growth; Affects angling success and fish feeding. spawning, and gill function, and changes bottom substrate, reducing channel capacities, and increasing flooding.
Problem Type:
E: Emanations of other problems
Date of last update
08.02.1999 – 00:00 CET
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