Understanding large woody debris (LWD) recruitment and in-stream dynamics/budgets in aquatic environments is important for designing riparian management strategies for protection of LWD-related aquatic habitat. Without long-term experimental data, computer simulation is an effective approach for evaluating relationships between LWD and disturbance (i.e. wildfire and harvesting). The objectives of this project are to develop a LWD recruitment and in-stream process model, called AQUAWOOD; and to link this model with the existing ecosystem model FORECAST to simulate the differences in LWD characteristics between wildfire disturbance and harvesting in lodgepole pine forests in the central interior of BC. Linkage of AQUAWOOD model with FORECAST is necessary for achieving above objectives. The output file describing tree mortality from FORECAST is used as an input file for driving AQUAWOOD simulation. With the funding from the BC Forest Science Program (FSP), the AQUAWOOD model has been successfully developed using PARSCAL computer language and .net technology. Modification to the FORECAST model has also been done so both models can be fully linked. Our preliminary simulations have indicated there is large difference in LWD dynamics between wildfire disturbance and harvesting in lodgepole pine forests.
Wei, Adam. 2005. Simulation of large woody debris recruitment and dynamics associated with wildfire disturbance and harvesting in headwater streams of the BC interior. Forest Investment Account (FIA) - Forest Science Program. Forest Investment Account Report