Forest Investment Account

Abstract of FIA Project 2001017

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Kamloops TSA biodiversity planning: April 1, 2002 to March 31, 2003

Author(s): Tolko Industries Ltd.
Imprint: B.C.: Tolko Industries Ltd., 2003
Subject: Forest Investment Account (FIA), Sustainable Forestry, British Columbia, Timber Supply Areas (B.C.)
Series: Forest Investment Account (FIA) - Land Base Investment Program - Innovative


Introduction Conservation of biological diversity is one of the CSA criteria in the Sustainable Forest Management (SFM) Plan for the Kamloops TSA. Indicators and objectives of this criteria include; achievement of the TSA's old forest strategy; provision for the location and distribution of patches or individual wildlife trees; and recognition and conservation of known rare ecosystems and species. The SFM Plan is based on the direction in the Kamloops LRMP for high, intermediate and low biodiversity emphasis options and corresponding targets for Old Growth Management Areas (OGMAs) which have been assigned to each of the 33 landscape units in the LRMP area. These OGMAs are specified according to natural disturbance type and biogeoclimatic ecosystem classification. A draft old growth strategy has been in place since 1997 and is in the process of being updated. The Ministry of Sustainable Resources is coordinating the finalization of the LRMP strategies and objectives for biological diversity in the Kamloops TSA. MSRM's goal is to have a series of old growth areas, wildlife tree patches (WTPs) and rare ecosystems throughout the LRMP area legally established. Several iterations of these spatial biodiversity reserves old growth areas are to be tested by agencies and forest licensees to ensure the LRMP and SFM biodiversity strategies are met. The LRMP biodiversity strategies include: 1. Limit the impact of landscape unit biodiversity emphasis options to no more than 4% of the level of timber harvesting in the LRMP over the short and long term. 2. Develop tools and indicators to measure progress towards conservation of biodiversity and the impacts of biodiversity emphasis options on timber supply and other resources. SFM plan research information needs: 1. There is a need for developing and monitoring biological indicators of actual biodiversity values to verify the surrogate indicators, such as seral stage distribution. 2. Timber supply - further refine temporal and spatial analysis of timber supply information (including age class distribution). Project objective For the Kamloops LRMP/ TSA define spatial old growth areas and WTPs with the objective of meeting the targets set by MSRM. A spatial modeling analysis to support the legal establishment of spatially-explicit OGMAs over the LRMP area will also be completed. This analysis will also provide necessary information that can be used to support the SFM plan for the Kamloops TSA. The project will: analyze draft OGMAs in the Kamloops TSA (excluding TFLs 18 and 35) using a spatially explicit forest estate model; refine the draft OGMA placement for review by MSRM and concerned licensees, giving consideration to present and future timber supply, resource emphasis areas, other forest cover constraints, the ratified forest cover age selection order, and any other criteria specified by the licensees during the initial workshop; model separate scenarios to demonstrate the achievement of goals and indicators for ecosystem restoration, patch management, sustainability, and the six criteria of the Sustainable Forest Management Plan for the Kamloops TSA; provide tabular and cartographic summaries of the OGMA plan over a 250-year horizon; and provide digital and plot files compatible with Microstation and ArcInfo to MSRM and each of the 12 licensees in the TSA. Work completed in 2002 1. In 2002 licensees reviewed MSRM's draft spatial OGMAs providing edits which were digitized in Arcview by a digitizing contractor. 2. In 2002 the first set of meetings for joint MSRM/ Licensee review were completed. A GIS analysis of the draft spatial (static) OGMAs and WTPs was completed to summarize the target achievements (surpluses and deficits). 3. The TSA resultant data set (updated to May 2002) was received from MSRM, and verified by FESL staff. A formal review of the dataset was performed for gaps or irregularities and any necessary cleaning was completed. Post-processing was performed on the resultant to eliminate sliver polygons that did not contribute to the accuracy of the data. Due to the delays with finalizing the spatial OGMAs, which was crucial to the overall project, the analysis dataset for the spatially explicit modeling was not completed during this fiscal year. When the draft spatial OGMAs and the block data are made available in 2003 they can be added to the resultant and a final information package prepared. Following approval, the analysis can then be initiated. Work to be completed in 2003 Finalizing spatial OGMAs A second set of meetings with MSRM biologists and forest licensees will be held in 2003 to complete the process of defining and editing spatial old growth areas to meet the spatial targets. Preparation of Information Package An informal data package will be prepared to document the determination of the timber harvesting land base, the growth and yield assumptions, and the forest cover requirements, as well as the final age selection order for OGMA delineation. Prepare Base Case Scenario (Run #1) This scenario will involve running the model to determine maximum timber flow in the absence of old growth management areas and wildlife tree patches. Timber flows will be verified against the results of TSR 2. Draft OGMA Test Scenarios (Run #2) Spatial OGMAs will be incorporated into the forest estate model for testing against biodiversity targets and criteria that include representation by variant, ecosystem patch size, and other resource sustainability. The objective of this analysis will be to determine how effective the draft OGMAs are at maintaining old forest attributes throughout the TSA. Where old forest targets and criteria are not met by the spatial OGMAs, other scenarios can be modelled to investigate potential strategies for OGMA modification. These draft OGMA scenarios will test the spatial OGMAs as well as any modifications or edits. It is understood that these OGMAs are considered to be static in that their boundaries do not move over time. While this assumption makes the manual identification of OGMAs relatively simple, in reality the existence of old forest will be continuously dynamic. If not actively planned for OGMAs will be at risk in the future due to natural disturbance. Scenario 3 will help to illustrate this. Dynamic OGMA Scenarios (Run #3) The target based modeling capabilities of a forest estate model will be used to analyze temporal old growth dynamics across the Kamloops TSA. These scenarios will present a different approach to managing old growth in that the model will schedule old growth forest conditions over time subject to harvest as well as other resource emphasis requirements. The spatial OGMAs will not be used in these scenarios. The estate model will retain and recruit old forest based on the targets that are set for each LU/BEC variant combination. It will incorporate patch size targets in this modeling in order to approximate interior forest condition. Once the analysis is run we will utilize the age criteria that has been developed to prioritize the old forest polygons forecasted by the forest estate model for potential OGMAs. The intent of these new scenarios will be to provide a unique approach for comparison with the spatially derived OGMAs. An analysis of the modelled OGMAs verses the spatial OGMAs will investigate similarities and differences in OGMA locations and the development of old growth over time for each BEC variant/LU following OGMAs and modelled old growth. A key comparison will be the investigation of patch sizes between the spatial (static) OGMAs and dynamic OGMA scenarios. These scenarios are intended to show management implications of using static OGMAs for the future management of old growth. Any opportunities to use integrated modeling techniques to schedule old growth along with harvest instead of statically deriving OGMA locations will also be monitored. This approach may allow for further refinement of the spatial OGMAs. Deliverables Results of the OGMA analysis will be presented to the TSA licensees and government agencies. It is intended that the scenarios results will be used to support the development of OGMAs that will be presented to the LRMP monitoring committee. This analysis can also be used to support the Kamloops TSA SFM plan. A series of tables and graphs illustrating seral stage representation for each BEC variant/LU combination and resource emphasis area reports (VQO, watersheds, wildlife habitat, etc.) will be forecast, for each decade over a 250-year planning horizon providing valuable information for validating sustainable forest management of the TSA. Map products will consist of seral stage distribution at every 50 years over the planning horizon and will be illustrated on six 1:50,000 scale maps. These maps will be provided in digital and plot files compatible with Microstation and ArcInfo to MSRM and each of the 12 licensees in the TSA by FTP.
Tolko Industries Ltd..

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Updated August 02, 2006 

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