TSA Modeling Assumptions Sample Clauses

TSA Modeling Assumptions. CVFC identified five key management zones in determining its AAC. These management zones are identified in Table 12 of Appendix 1 and have been modeled into the analysis. The management zones are shown on Figure 3, 4 and 5 and include: • Natural Disturbance Type 4 • Wildland Urban Interface • Community and Domestic watersheds • Visual Quality Objective polygons • Remaining area of CFA not defined by first four management zones These zones are defined by a specific management regime to be implemented and when combined with the BEC and existing stand type information, these key aspects determine what kind of silviculture system will be applied. CVFC’s analysis shows an even flow AAC of 21,000 m3/year that can be maintained for 250 years. Alternatively, the ‘base case’ scenario shows an AAC of 25,000 m3/year for the first seven decades and declining in subsequent decades to 18,800 m3/year by decade twenty. Given the impacts of climate change and the amount of WUI and NDT4 areas that will be left untouched after treatment, CVFC is confident that the current timber volumes and growth rates used in the base case are realistic and that mature timber volumes will inevitably decline during this century. ‘Either way, we can be sure of one thing. The forests our grandchildren walk in will be very different from those we grew up with’ (BC Business June 2015).