Impacts of river restoration on small-wood dynamics in a low-gradient headwater stream (in Special Issue: Wood In World Rivers)
Impacts of river restoration on small-wood dynamics in a low-gradient headwater stream (in Special Issue: Wood In World Rivers)
Wood is an important element in many river systems, interacting with channel and floodplain geomorphology, hydrology and ecology. Restoration practices are increasingly re-introducing wood into streams and researchers have started to study the geomorphic and ecological effects of re-introducing wood into rivers. However, little research has attempted to quantify the impacts of river restoration (including the addition of wood jams) on wood retention. Based on tracing dowels to simulate small wood (ranging in length from 0·184 to 1·06 m and diameter from 0·006 to 0·035 m) in three study reaches before and after restoration, this study provides a detailed representation of the influence of restoration on small-wood transport and the relative importance of different trapping sites within a low-order meandering stream in the New Forest, UK. The research specifically addresses the following questions. (i) Does restoration reduce transport of small wood? (ii) Does restoration increase the frequency and type of small-wood trapping sites? (iii) Do wood jams trap more small wood than other trapping sites? (iv) Do shorter pieces of wood travel further than long pieces? The study has demonstrated that (i) different types of restoration have different effects on the frequency and type of small-wood trapping mechanisms, and hence also on small-wood transport; (ii) wood jams were the most effective structures for trapping small wood in this environment; (iii) shorter pieces of wood travelled further than long pieces. Channel-floodplain interactions were also found to be important, allowing the floodplain to function as a trapping site.
wood dynamics, wood jams, wood retention, river restoration, small wood
1204-1218
Millington, C.E.
27602bd7-89a0-44f3-8674-66e749388c14
Sear, D.A.
ccd892ab-a93d-4073-a11c-b8bca42ecfd3
3 July 2007
Millington, C.E.
27602bd7-89a0-44f3-8674-66e749388c14
Sear, D.A.
ccd892ab-a93d-4073-a11c-b8bca42ecfd3
Millington, C.E. and Sear, D.A.
(2007)
Impacts of river restoration on small-wood dynamics in a low-gradient headwater stream (in Special Issue: Wood In World Rivers).
Earth Surface Processes and Landforms, 32 (8), .
(doi:10.1002/esp.1552).
Abstract
Wood is an important element in many river systems, interacting with channel and floodplain geomorphology, hydrology and ecology. Restoration practices are increasingly re-introducing wood into streams and researchers have started to study the geomorphic and ecological effects of re-introducing wood into rivers. However, little research has attempted to quantify the impacts of river restoration (including the addition of wood jams) on wood retention. Based on tracing dowels to simulate small wood (ranging in length from 0·184 to 1·06 m and diameter from 0·006 to 0·035 m) in three study reaches before and after restoration, this study provides a detailed representation of the influence of restoration on small-wood transport and the relative importance of different trapping sites within a low-order meandering stream in the New Forest, UK. The research specifically addresses the following questions. (i) Does restoration reduce transport of small wood? (ii) Does restoration increase the frequency and type of small-wood trapping sites? (iii) Do wood jams trap more small wood than other trapping sites? (iv) Do shorter pieces of wood travel further than long pieces? The study has demonstrated that (i) different types of restoration have different effects on the frequency and type of small-wood trapping mechanisms, and hence also on small-wood transport; (ii) wood jams were the most effective structures for trapping small wood in this environment; (iii) shorter pieces of wood travelled further than long pieces. Channel-floodplain interactions were also found to be important, allowing the floodplain to function as a trapping site.
This record has no associated files available for download.
More information
Submitted date: August 2006
Published date: 3 July 2007
Additional Information:
Received: 20 August 2006; Revised: 27 January 2007; Accepted: 15 February 2007.
Keywords:
wood dynamics, wood jams, wood retention, river restoration, small wood
Identifiers
Local EPrints ID: 48112
URI: http://eprints.soton.ac.uk/id/eprint/48112
ISSN: 0197-9337
PURE UUID: d7dba47a-ac23-4627-9819-6b1c17ff5b23
Catalogue record
Date deposited: 28 Aug 2007
Last modified: 16 Mar 2024 02:45
Export record
Altmetrics
Contributors
Author:
C.E. Millington
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
