Undergrowth, of course, includes also trees under 2 cm in DBH; these were estimated to be 500 stems/ha. Their amount was also remarkably high at that time. Understorey has been undervalued but forms a rich and diverse regeneration potential. 展开 ...
North of the border, the Lake Fire in the San Bernardino National Forest (about 350 km north of the SSPMNP) burned 13 000 ha of YPMC and upper montane forest in June and July of 2015. The Mountain Fire burned 11 000 ha of YPMC forest and chaparral in the San Jacinto National Forest...