Forest Investment Account

Abstract of FII Project R04-024

" ALT="See below to download" WIDTH="100" HEIGHT="129" BORDER="0" bordercolor="#000000">

Management approaches for rehabilitation of degraded wet sites in BC Northern Interior

Author(s): Dubé, Stéphane (BC Ministry of Forests)
Subject: Earth Sciences, Forestry, Hydrology, Silviculture/Forest Management Systems
Series: Forest Investment Account (FIA) - Forest Science Program


On valley-bottom receiving areas (described herein as wet sites), harvesting often result in soil disturbance leading to impeded surface drainage and increased water table levels, and possibly reduced site productivity. Currently, damage to weak soils by heavy equipment during harvesting exacerbates waterlogging problems. Rehabilitation guidelines for these degraded wet sites are limited in BC Northern Interior. However, management of excess water through prescription drainage practices is key for successful restoration of natural surface drainage patterns and to sustain site productivity. With effective drainage, these sites can be re-established to their main tree cover sooner, and overall productivity of the forests increased. A retrospective study of established ditching installations within BC Northern Interior will provide scientific information. Selected areas are those areas representatives of valley-bottom receiving areas between uplands and peatlands where waterlogging conditions likely occurs after logging, and that are considered to be of concerns for Industry in term of sustaining productivity. A best management practices guide for recognition and rehabilitation of degraded wet sites in the SBS biogeoclimatic zone will be produced in support of soil rehabilitation activities for valley-bottom receiving areas driven by regulatory requirements or under a sustainable forestry regime.

For further information, please contact Stéphane Dubé, BC Ministry of Forests (

Updated September 08, 2005 

Search for other  FIA reports or other Ministry of Forests publications.

Please direct questions or comments regarding publications to