A New Paradigm Sample Clauses

A New Paradigm. In the SBPSxc portion of the Chilcotin study area, since 1869, 25% of the area has had one fire event, 48% of the area has had two fire events, 22% of the area has had three fire events and 5% of the area has had four fire events. Over the same period of time, in the SBPSdc portion of the study area, 48% of the area has had one fire event, 36% of the area has had two fire events, and 8% of the area has had three fire events. (Xxxxxxx et al. pg 87). • Fire sizes as indicated in the previous patch size discussion, are dominated by large and very large fire events, in excess of previously considered maximums and in excess of guidebook recommendations. So much so that Xxxxxxx et al. suggests that without aggregating the Biodiversity target distributions a landscape will result that does not approximate historic fire patterns over the last 150 years (pg 136). • Results indicated that the majority of small patches within TSF maps are residuals (pg 199). • Results of data indicated that small patches of timber should NOT be considered as discrete disturbance patches (pg 115, 124). • Most patches that are < 100 ha in size are fire residuals (pg 128, 132, 138 and 139) • Further relationships may exist between patch size and age-class with the expectation that most small patches are older than the surrounding forest matrix (p119). • Fire results suggest that most small patches are fire remnants within a larger burn matrix, and that most old forest exists within these small remnant islands (pg 79). These results seem to point to a different process than what has been assumed to be at work on the sub-boreal landscape. Start with the same single class even-aged landscape as was imagined in the ‘current perspective’ above. The landscape is subject to several large fires that leave remnant patches (and various levels of single trees) and large areas unburned. The next fire year has several more large fires, which will reduce the area left unburned by the first fire year and may overlap some of the first fire area. Xxxxxxx et al. indicates that in the Chilcotin there were 43 fire years between 2001 and 1869 (pg 42), or approximately one every three years. For the East Fraser study area over the same period of time there were 21 fire years, or approximately one every six years. The next fire year will do the same thing again, further reducing the remaining unburned area, leaving more remnants, and possibly overlapping previously burned area. The process continues for many ...