thumbnail

Riparian vegetation recovery patterns following stream channelization: a geomorphic perspective

Ecology

By:

Links

  • The Publications Warehouse does not have links to digital versions of this publication at this time

Abstract

Hundreds of kilometres of West Tennessee streams have been channelized since the turn of the century. After a stream is straightened, dredged, or cleared, basin-wide ecologic, hydrologic, and geomorphic processes bring about an integrated, characteristic recovery sequence. The rapid pace of channel responses to channelization provides an opportunity to document and interpret vegetation recovery patterns relative to otherwise long-term, concomitant evolution of river geomorphology. The linkage of channel bed aggradation, woody vegetation establishment, and bank accretion all lead to recovery of the channel. Pioneer species are hardy and fast growing, and can tolerate moderate amounts of slope instability and sediment deposition; these species include river birch (Betula nigra), black willow (Salix nigra), boxelder (Acer negundo), and silver maple (Acer saccharinum). High stem densities and root-mass development appear to enhance bank stability. Tree-ring analyses suggest that on average 65 yr may be required for recovery after channelization. -from Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Riparian vegetation recovery patterns following stream channelization: a geomorphic perspective
Series title:
Ecology
Volume
73
Issue:
4
Year Published:
1992
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Ecology
First page:
1209
Last page:
1226
Number of Pages:
18