Forest Investment Account

Abstract of FII Project R2003-119

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

Long Term Effects of Forest harvest on Peak streamflow Rates in Coastal British Columbia Rivers

Author(s): Chapman, Allan (Chapman Geoscience Ltd.)
Subject: Hydrology, Technology/GIS/Modeling/Remote Sensing
Series: Forest Investment Account (FIA) - Forest Science Program


This proposal addresses high priority knowledge gaps regarding watershed hydrology. We will examine the effects of forestry harvest and road construction on long term (40 years) peak streamflow rates for rivers on Vancouver Island. We will examine the concept of 'hydrological recovery' of peak streamflow rates, as 2nd growth forests regenerate within the watersheds of the study streams. We will define relationships to quantify peak flow effects in coastal streams under various forest management scenarios. The project applies state-of-the science analytical and statistical procedures to available long-term Environment Canada stream flow and climate data sets to form a new and efficient approach for forest hydrology research. End-users will be able to support their operational and policy decision-making with credible scientific results to: Guide appropriate management practices at the watershed scale to maintain aquatic resources. Confirm or revise current policies and guidelines for management of watershed and stream ecosystem processes. Conduct improved forest-level planning, modelling and risk assessment of harvesting impacts.

PDF Document

Download R2003-119.pdf (13 Kb)

[Get Adobe Acrobat Reader] To view this document you need Adobe Acrobat Reader,
available free from the Adobe Web Site.

Updated September 08, 2005 

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

Please direct questions or comments regarding publications to